UltraScape Flowpoint Premium Smooth Paving Grout - Stone Grey
About the product
UltraScape Flowpoint Premium Smooth Paving Grout – Stone Grey
"The Smooth-Finish Flowpoint in a Pure, Versatile Stone Grey — Joints from Just 3mm, Perfect for Grey Porcelain, Sandstone, Limestone & Fine-Jointed Natural Stone"
UltraScape Flowpoint Premium Smooth Stone Grey is our most versatile Smooth Flowpoint colour — a genuinely pure grey (not a mix of black, beige and limestone like many competitors) that works with almost any paving without looking too dark or too light. It's the ideal choice for grey porcelain, sandstone, limestone, Indian Stone and most natural stone paving where fine joints from 3mm and a clean, colour-matched finish are needed. It meets BS 7533 standards and lasts up to 40 years. Supplied in showerproof 25kg bags, sets in 15–30 minutes.
For best results, use a neoprene squeegee & 3 section pole for a clean, stain-free application. A temporary sealer such as Tile Rite Patio Prep Temporary Sealer is recommended for porous or darker stones to prevent grout haze.
Ideal for: grey or neutral porcelain (joints from 3mm), sandstone, Indian Stone, limestone, Yorkstone, Cotswold Stone, granite setts, clay and concrete slabs. Also suitable for darker limestone when used with a temporary pre-sealer.
Also available in Limestone & Yorkstone. Need joints from 5mm only? See Flowpoint Premium Standard Stone Grey.
Coverage Guide (approximate, per 25kg bag)
- Natural Stone (mixed pack): 1 bag ≈ 12–20m²
- Granite Setts: 1 bag ≈ 1.5–2m²
Use our calculator below for a precise estimate based on your patio size and joint width.
Got a question about Flowpoint Premium Smooth? See our Flowpoint FAQs, download the technical datasheet (PDF), or contact us. Alternatively, call 0330 122 1025 — we're always happy to help.
Calculate required quantity
UltraScape Flowpoint Premium Smooth Paving Grout - Stone Grey
See full delivery info →
For Highlands, Guernsey, Jersey, Isle of Man, and Isle of Wight – call 0330 122 1025.
See full delivery info →
For Highlands, Guernsey, Jersey, Isle of Man, and Isle of Wight – call 0330 122 1025.
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Flowpoint Premium Smooth Stone Grey — Full Technical Information
Product Overview
UltraScape Flowpoint Premium Smooth Stone Grey is a rapid-setting, flowable, cement-based paving grout with a smooth aggregate finish in a pure, neutral grey, for external use. It fills joints from just 3mm and produces strong, durable, weed-free joints. Supplied in showerproof 25kg bags with a water ratio of 4.25L per 25kg. Conforms to BS 7533.
Performance Data
| Property | Value |
|---|---|
| Classification | BS 7533 |
| Bond strength | Exceptional |
| Shrinkage | Shrinkage compensated |
| Initial set | 15–30 minutes at 20°C |
| Open to foot traffic | 1 hour |
| Open to vehicular traffic | 4 hours |
| Expected service life | Up to 40 years |
| Permeability | Non-permeable (impermeable bed required) |
| Weather resistance | Can be applied in light rain |
| Frost resistance | Do not apply below 3°C or if frost expected within 24 hours |
Application Data
| Property | Value |
|---|---|
| Water requirement | 4.25 litres per 25kg bag |
| Mixing time | 3–5 minutes |
| Working time after mixing | 15–30 minutes |
| Joint width | 3–50mm |
| Joint depth | 20–200mm (single application) |
| Supply format | 25kg showerproof paper bags |
| Colours available | Stone Grey, Limestone & Yorkstone |
Coverage Guide (approximate, per 25kg bag)
| Paving Type | Approximate Coverage |
|---|---|
| Natural Stone (mixed pack) | 12–20m² |
| Granite Setts | 1.5–2m² |
Suitable Substrates
- Grey or neutral porcelain (joints from 3mm)
- Sandstone & Indian Stone
- Limestone (pale varieties)
- Yorkstone & Cotswold Stone
- Granite setts
- Clay & concrete slabs
Note: Not recommended for use on some darker limestones (e.g. black limestone) without a temporary pre-sealer. Contact us for advice.
Storage & Shelf Life
- Shelf life: 8 months from date of manufacture (printed on the bag)
- Store in a cool, dry, frost-free area between 5°C and 30°C, in unopened, sealed bags
- Using after the declared storage period may increase the risk of an allergic reaction
Health & Safety
- Contains cement — wear appropriate PPE including gloves and eye protection
- Wet cement can cause serious skin burns — avoid prolonged skin contact
- Wash hands and exposed skin thoroughly after use
- Keep out of reach of children
- Full Safety Data Sheet (SDS) available on request or from the UltraScape website
For the full technical datasheet, download the PDF here. For project-specific advice, get in touch or call us on 0330 122 1025.
How to Mix & Apply Flowpoint Premium Smooth Paving Grout
Important — drainage: Make sure you have somewhere to push excess slurry grout, such as an area of lifted grass or a waste bucket. Never push excess Flowpoint into drains — it sets rapidly and will cause a permanent blockage.
Step 1 — Preparation
Without a temporary pre-sealer (standard method):
- Ensure joints are clean and free from debris, dust and loose material.
- Thoroughly pre-soak the paving surface and joints with water — the paving must be properly wet before you begin.
- Then remove all standing or ponded water from the surface and joints — a leaf blower is ideal. The paving should be damp, not waterlogged.
- Keep the surface moist throughout application by misting with a soft spray of water as you work.
With a temporary pre-grout sealer (e.g. Tile Rite Patio Prep or Nexus ProJoint Pre-Grout):
- Apply the temporary sealer in advance and allow it to dry as per the product instructions.
- Do not pre-soak the paving with water. The sealer acts as the protective barrier — water is not required until clean-down.
- Remove any standing water from the joints using a leaf blower before grouting begins.
- Always carry out a small trial area first to ensure compatibility with your stone type.
Step 2 — Mixing
- Add 4.25 litres of clean water per 25kg bag into a clean bucket or mixing vessel.
- Gradually add the Flowpoint Premium Smooth powder to the water and mix for 3–5 minutes until smooth and lump-free. Use a slow-speed drill and paddle mixer for best results.
- Only mix what you can apply in approximately 4 minutes — do not store liquid mortar.
- Never remix or add extra water once mixed.
Step 3 — Application
- Pour the mixed grout directly onto the paving surface.
- Using a neoprene squeegee & 3 section pole, force the mortar into the joints. Work methodically to ensure all joints are fully filled. Top up any joints where mortar has slumped after initial placement.
- Use the squeegee to remove as much excess mortar as possible from the surface as you go.
- If not using a temporary pre-sealer, keep the surface constantly moist using a soft water spray. If using a pre-sealer, water is not required until clean-down.
- Use the thumb test: once the joint is firm and leaves only a slight thumbprint, begin washing off.
- Clean the paving surface thoroughly using a brush and copious clean water. No mortar must remain on the surface.
- Wash all tools frequently during application.
Step 4 — Trafficking
- Foot traffic: after 1 hour (at 20°C)
- Vehicular traffic: after 4 hours (at 20°C)
- Cool temperatures retard set; warm temperatures accelerate it. Do not apply below 3°C or in direct sunlight.
Important Precautions
- Wear appropriate PPE — avoid skin and eye contact. Wet cement can cause serious burns.
- Never remix or add extra water once the mix has been prepared.
- Never push excess Flowpoint into drains — it will set and cause a permanent blockage.
- Do not apply below 3°C or if frost is expected within 24 hours.
- Do not apply in direct sunlight.
- Store in a cool, dry, frost-free area. Shelf life: 8 months from date of manufacture (printed on the bag).
About the product
UltraScape Flowpoint Premium Smooth Paving Grout – Stone Grey
"The Smooth-Finish Flowpoint in a Pure, Versatile Stone Grey — Joints from Just 3mm, Perfect for Grey Porcelain, Sandstone, Limestone & Fine-Jointed Natural Stone"
UltraScape Flowpoint Premium Smooth Stone Grey is our most versatile Smooth Flowpoint colour — a genuinely pure grey (not a mix of black, beige and limestone like many competitors) that works with almost any paving without looking too dark or too light. It's the ideal choice for grey porcelain, sandstone, limestone, Indian Stone and most natural stone paving where fine joints from 3mm and a clean, colour-matched finish are needed. It meets BS 7533 standards and lasts up to 40 years. Supplied in showerproof 25kg bags, sets in 15–30 minutes.
For best results, use a neoprene squeegee & 3 section pole for a clean, stain-free application. A temporary sealer such as Tile Rite Patio Prep Temporary Sealer is recommended for porous or darker stones to prevent grout haze.
Ideal for: grey or neutral porcelain (joints from 3mm), sandstone, Indian Stone, limestone, Yorkstone, Cotswold Stone, granite setts, clay and concrete slabs. Also suitable for darker limestone when used with a temporary pre-sealer.
Also available in Limestone & Yorkstone. Need joints from 5mm only? See Flowpoint Premium Standard Stone Grey.
Coverage Guide (approximate, per 25kg bag)
- Natural Stone (mixed pack): 1 bag ≈ 12–20m²
- Granite Setts: 1 bag ≈ 1.5–2m²
Use our calculator below for a precise estimate based on your patio size and joint width.
Got a question about Flowpoint Premium Smooth? See our Flowpoint FAQs, download the technical datasheet (PDF), or contact us. Alternatively, call 0330 122 1025 — we're always happy to help.
UltraScape Flowpoint Premium Smooth Paving Grout — Stone Grey | 25KG Bag
The Smooth-Finish Flowpoint in a Pure, Versatile Stone Grey — Joints from Just 3mm
Flowpoint Premium Smooth Stone Grey is one of the best rapid-set slurry grouts on the market for contractors and homeowners who need a finer aggregate finish from joints as narrow as 3mm. It combines the proven Flowpoint performance with a pure, neutral grey that works beautifully alongside grey porcelain, sandstone, limestone and most natural stone paving. It's a product our customers consistently come back to tell us they're delighted with: fast to apply, strong, weed-resistant joints that last up to 40 years.
Rapid-setting, BS 7533 compliant, joints from 3–50mm wide and 20–200mm deep, supplied in 25kg bags — Flowpoint Premium Smooth Stone Grey is a professional-strength paving grout equally at home on a domestic patio or a large-scale commercial landscaping project.
We're a small, family-run business — I'm Cleo, the owner, with over 25 years in the construction industry working with businesses including Tarmac and Instarmac. What makes Stone Grey special is that it's a genuinely pure grey — unlike many grouts on the market that mix black, beige and limestone to approximate a grey, Flowpoint Premium Smooth Stone Grey has been developed to give the purest grey possible. That matters a great deal when you're matching it to contemporary grey porcelain or cool-toned natural stone.
If you're jointing grey porcelain, sandstone, limestone, Indian Stone or most natural stone paving with joints from 3mm — this is the product we'd confidently recommend. For darker limestones such as black limestone, please use a temporary pre-sealer such as Tile Rite Patio Prep to prevent oxidisation, or give us a call and we'll advise.
What Contractors Say
GARETH WILSON — Hard Landscaping Expert & RHS Award Winner
"Keep your eye on the firmness of the joint — just with a little thumb test. Once firm, then begin washing off. Too many contractors start washing off when the product starts to dry on the slabs. You need to keep the slabs damp with a mist of water so it doesn't go off on them too soon."
JORDAN CLAYTON — Owner of Next Level Landscapes Ltd.
"Flowpoint is our go-to product when it comes to jointing all our paving. I love how it gives me confidence that the products will stand the test of time, allowing homeowners to enjoy their garden for years to come."
(Courtesy of Instarmac Group Plc)
Common Flowpoint Myths — Busted
| Myth | The Truth |
|---|---|
| Flowpoint is new and unproven | Developed around 25 years ago, used on thousands of major projects worldwide — including in New Zealand, Norway, America and Dubai. |
| It requires specialist equipment | Not at all. A paddle mixer and a long-handled neoprene squeegee are all you need beyond standard paving tools. |
| Flowpoint sticks to pavers | It doesn't set instantly. Keep the area damp and plan around the weather — particularly in hot conditions. |
| It causes cracking and low spots | This happens when it's washed off too early. Use the thumb test — if the joint is still bleeding, wait. |
| It works with every paving material | Most, yes — but not black limestone without a pre-sealer, as it can oxidise and cause staining. |
| It causes efflorescence | Applied correctly, it shouldn't. Problems usually come from an undried bed, too much water in the mix, or early pressure-washing. |
| Paving must be kept completely wet | Damp, not saturated. Too much water can dilute the mix and cause joint failure. |
| Slabs must sit for 28 days before grouting | The key is that the bedding mortar is properly cured with no visible dampness. Always follow the manufacturer's guidance. |
Use Flowpoint Premium Smooth Stone Grey with:
- Grey or neutral porcelain (joints from just 3mm)
- Sandstone & Indian Stone
- Limestone (pale varieties)
- Yorkstone & Cotswold Stone
- Granite setts (approx. 1 bag per 1.5m²)
- Clay & concrete slabs
Not recommended for some darker limestones such as black limestone without a pre-grout sealer. Use Tile Rite Patio Prep to prevent staining and oxidisation, or call us on 0330 122 1025 for advice.
Flowpoint Premium Smooth Stone Grey — Key Specs
- Unit size: 25kg bag
- Colours: Stone Grey | Also available in Limestone & Yorkstone
- Set time: 30 minutes at 20°C | Working time: approx. 4 minutes
- Foot traffic: 1 hour | Vehicles: 4 hours
- Classification: BS 7533
- Joint width: 3–50mm | Depth: 20–200mm
- Smooth aggregate finish — ideal for fine joints and porcelain
- Pure stone grey — not a mix of black, beige and limestone
- Shrinkage compensated | Exceptional bond strength
- Lasts up to 40 years without re-grouting
- Works in light rain | Shelf life: 8 months (unopened)
Flowpoint Grades & Colours — Which One Do You Need?
| Grade | Colours Available | Joint Width |
|---|---|---|
| Flowpoint Standard | Natural Grey & Charcoal | 5–50mm |
| Flowpoint Premium Standard | Stone Grey, Limestone & Yorkstone | 5–50mm |
| Flowpoint ECO | Natural Grey & Charcoal | 5–50mm |
| Flowpoint Smooth | Natural Grey & Charcoal | 3–50mm |
| Flowpoint Premium Smooth | Stone Grey, Limestone & Yorkstone | 3–50mm |
| Flowpoint Fine | Natural Grey & Charcoal | 2–50mm |
Frequently Asked Questions about UltraScape Flowpoint Premium Smooth Stone Grey
I'm Cleo, owner of The Paving Experts, with over 25 years in the construction industry working with businesses including Tarmac and Instarmac. I work alongside a small team of incredibly knowledgeable and caring individuals who share the same passion for getting it right. These are the questions we get asked every single day.
What's the difference between Flowpoint Premium Smooth and Flowpoint Premium Standard?
The Smooth grade has a finer aggregate, which means it can fill joints from just 3mm rather than 5mm. If your joints are wider than 5mm, Standard is fine. If you're working with tight joints — particularly porcelain — Smooth is the one to go for. Performance, set times and water ratio are otherwise identical.
What makes Stone Grey different from other grey grouts?
Flowpoint Premium Smooth Stone Grey is a genuinely pure grey — many grouts marketed as grey are actually a blend of black, beige and limestone pigments. This has been specifically developed to give the cleanest grey possible, which makes a real difference on contemporary grey porcelain or cool-toned stone where colour accuracy matters.
Why choose Stone Grey over Limestone or Yorkstone?
Stone Grey is the most versatile Smooth colour — a pure, neutral mid-tone that works with almost any paving without looking too dark or too warm. Particularly good with grey porcelain, sandstone, limestone and Indian Stone. If your paving has warmer or cream tones, Limestone or Yorkstone might be a better fit. Not sure? Send us a photo and we'll advise.
Can I use it with black limestone?
With care — use a temporary pre-sealer such as Tile Rite Patio Prep to prevent oxidisation. If you'd like advice on your specific stone, give us a call.
How long does it last?
Applied correctly, up to 40 years without the need to re-grout.
What's the set time?
30 minutes at 20°C, walkable after 1 hour. Warmer temperatures accelerate this; cooler ones slow it down. Use the thumb test — once the joint is firm and leaves only a slight thumbprint, start washing off.
Is it permeable?
No — a non-permeable, cementitious joint. Must be laid on a solid, non-permeable bed with adequate drainage fall.
Can I use it in the rain?
Yes — light rain is fine. A damp day can actually give you a bit more working time. Just make sure the joints aren't full of rainwater before you start.
Do I need to pre-seal?
Using a pre-sealer like Tile Rite Patio Prep: don't pre-soak — the sealer acts as the barrier. Without a sealer: thoroughly wet the paving, then remove all standing water before you start.
What's the shelf life?
8 months from the date of manufacture (printed on the bag), stored sealed in a cool, dry, frost-free area.
How much do I need?
Use the Flowpoint Calculator on this page for an accurate estimate. As a guide, one 25kg bag covers approximately 12–20m² for natural stone mixed packs, and 1.5–2m² for granite setts.
Want to learn more?
Read 'What is Flowpoint' or see our Flowpoint FAQs.
Want to order a pallet?
Call 0330 122 1025 for deals on a 56-bag full pallet with free standard delivery.
Questions about which grade or colour is right for your project? Get in touch or call 0330 122 1025 — we're always happy to help.
- Brand: Instarmac
- Product Type: Paving Grout
- SKU: TPE-FLOPREMSSG
- Weight: 25.0 kg / 55.12 lb
Delivery & Returns Info
Our delivery charges are calculated based on the size and weight of your order. When you add items to your basket, the delivery charges are displayed. Small orders are distributed via courier; larger orders via Pallet Network. Collection is available from our Tamworth depot by request (contact us first to arrange on 0330 122 1025).
Please note, there is a slight surcharge for areas that are outside of our locality, charges calculated at checkout.
| Weight and size | Next Working Day* Order before 1PM (excl. VAT) |
Standard 3-5 Working Day (excl. VAT) |
|---|---|---|
| 0-13KG (1 small bag/tub) |
£14.00 | £9.00 |
| 13.01-25KG (1 large bag/tub) |
£16.00 | £10.00 |
| 25.01-50KG (2 bags/tubs) |
£26.00 | £19.00 |
| 50.01-75KG (3 bags/tubs) |
£36.00 | £28.00 |
| 75.01-100KG (4-5 bags/tubs) |
£46.00 | £37.00 |
| 100.01-249KG (6-9 bags/tubs) |
£60.00 | £45.00 |
| 249.01-750KG (10 bags plus) |
£68.00 | £48.00 |
| 750.01KG plus (30 bags plus) |
£75.00 | £55.00 |
| Full Pallets (56 bags/52 tubs) |
£88.00 | Free of charge |
| Next Working Day delivery (Premium 1-2 Working Day Service) | +avg. £5-10 Extra. Click here for prices |
|---|---|
| Scotland Delivery Service (Deliveries into some parts of Scotland can take 8-10 working days) | Click here for prices |
| Local Delivery & Click & Collect: | Email: orders@thepavingexperts.co.uk |
Delivery Information
- Prices apply to mainland England and Wales. Scottish delivery slight surcharge.
- Orders are packed and dispatched Monday–Friday (excluding weekends & public holidays).
Next Working Day Delivery
- Order before 1PM → same-day dispatch.
- Order after 1PM or on weekends/bank holidays → next working day dispatch.
- You'll receive tracking updates via email/SMS if you provide your details.
Delivery Examples
- Mon before 1PM → Packed Mon, delivered Tue.
- Mon after 1PM → Packed Tues delivered Wed.
- Fri before 1PM → Packed Fri, delivered Mon.
- Fri after 1PM/weekend → Packed Mon, delivered Tues (or Wed after a bank holiday).
- Standard Service: 3–5 working days.
Notes
- Occasional delays due to manufacturing, supply, or courier issues may happen, but we'll keep you informed.
Returns, cancel up to 14 days from date of delivery. Product to be returned in the same condition & packaging. No returns for cementitious & perishable products. You are responsible for the cost of returning goods to The Paving Experts, 20% admin restock fee applies. Need further info, click here.
For further detailed delivery information click here →
For any advice; technical, product, stock or quantity needed, call our team on 0330 122 1025.
Please see our FAQs for more information.
UltraScape Flowpoint Premium Smooth Paving Grout — Stone Grey | 25KG Bag
The Smooth-Finish Flowpoint in a Pure, Versatile Stone Grey — Joints from Just 3mm
Flowpoint Premium Smooth Stone Grey is one of the best rapid-set slurry grouts on the market for contractors and homeowners who need a finer aggregate finish from joints as narrow as 3mm. It combines the proven Flowpoint performance with a pure, neutral grey that works beautifully alongside grey porcelain, sandstone, limestone and most natural stone paving. It's a product our customers consistently come back to tell us they're delighted with: fast to apply, strong, weed-resistant joints that last up to 40 years.
Rapid-setting, BS 7533 compliant, joints from 3–50mm wide and 20–200mm deep, supplied in 25kg bags — Flowpoint Premium Smooth Stone Grey is a professional-strength paving grout equally at home on a domestic patio or a large-scale commercial landscaping project.
We're a small, family-run business — I'm Cleo, the owner, with over 25 years in the construction industry working with businesses including Tarmac and Instarmac. What makes Stone Grey special is that it's a genuinely pure grey — unlike many grouts on the market that mix black, beige and limestone to approximate a grey, Flowpoint Premium Smooth Stone Grey has been developed to give the purest grey possible. That matters a great deal when you're matching it to contemporary grey porcelain or cool-toned natural stone.
If you're jointing grey porcelain, sandstone, limestone, Indian Stone or most natural stone paving with joints from 3mm — this is the product we'd confidently recommend. For darker limestones such as black limestone, please use a temporary pre-sealer such as Tile Rite Patio Prep to prevent oxidisation, or give us a call and we'll advise.
What Contractors Say
GARETH WILSON — Hard Landscaping Expert & RHS Award Winner
"Keep your eye on the firmness of the joint — just with a little thumb test. Once firm, then begin washing off. Too many contractors start washing off when the product starts to dry on the slabs. You need to keep the slabs damp with a mist of water so it doesn't go off on them too soon."
JORDAN CLAYTON — Owner of Next Level Landscapes Ltd.
"Flowpoint is our go-to product when it comes to jointing all our paving. I love how it gives me confidence that the products will stand the test of time, allowing homeowners to enjoy their garden for years to come."
(Courtesy of Instarmac Group Plc)
Common Flowpoint Myths — Busted
| Myth | The Truth |
|---|---|
| Flowpoint is new and unproven | Developed around 25 years ago, used on thousands of major projects worldwide — including in New Zealand, Norway, America and Dubai. |
| It requires specialist equipment | Not at all. A paddle mixer and a long-handled neoprene squeegee are all you need beyond standard paving tools. |
| Flowpoint sticks to pavers | It doesn't set instantly. Keep the area damp and plan around the weather — particularly in hot conditions. |
| It causes cracking and low spots | This happens when it's washed off too early. Use the thumb test — if the joint is still bleeding, wait. |
| It works with every paving material | Most, yes — but not black limestone without a pre-sealer, as it can oxidise and cause staining. |
| It causes efflorescence | Applied correctly, it shouldn't. Problems usually come from an undried bed, too much water in the mix, or early pressure-washing. |
| Paving must be kept completely wet | Damp, not saturated. Too much water can dilute the mix and cause joint failure. |
| Slabs must sit for 28 days before grouting | The key is that the bedding mortar is properly cured with no visible dampness. Always follow the manufacturer's guidance. |
Use Flowpoint Premium Smooth Stone Grey with:
- Grey or neutral porcelain (joints from just 3mm)
- Sandstone & Indian Stone
- Limestone (pale varieties)
- Yorkstone & Cotswold Stone
- Granite setts (approx. 1 bag per 1.5m²)
- Clay & concrete slabs
Not recommended for some darker limestones such as black limestone without a pre-grout sealer. Use Tile Rite Patio Prep to prevent staining and oxidisation, or call us on 0330 122 1025 for advice.
Flowpoint Premium Smooth Stone Grey — Key Specs
- Unit size: 25kg bag
- Colours: Stone Grey | Also available in Limestone & Yorkstone
- Set time: 30 minutes at 20°C | Working time: approx. 4 minutes
- Foot traffic: 1 hour | Vehicles: 4 hours
- Classification: BS 7533
- Joint width: 3–50mm | Depth: 20–200mm
- Smooth aggregate finish — ideal for fine joints and porcelain
- Pure stone grey — not a mix of black, beige and limestone
- Shrinkage compensated | Exceptional bond strength
- Lasts up to 40 years without re-grouting
- Works in light rain | Shelf life: 8 months (unopened)
Flowpoint Grades & Colours — Which One Do You Need?
| Grade | Colours Available | Joint Width |
|---|---|---|
| Flowpoint Standard | Natural Grey & Charcoal | 5–50mm |
| Flowpoint Premium Standard | Stone Grey, Limestone & Yorkstone | 5–50mm |
| Flowpoint ECO | Natural Grey & Charcoal | 5–50mm |
| Flowpoint Smooth | Natural Grey & Charcoal | 3–50mm |
| Flowpoint Premium Smooth | Stone Grey, Limestone & Yorkstone | 3–50mm |
| Flowpoint Fine | Natural Grey & Charcoal | 2–50mm |
Frequently Asked Questions about UltraScape Flowpoint Premium Smooth Stone Grey
I'm Cleo, owner of The Paving Experts, with over 25 years in the construction industry working with businesses including Tarmac and Instarmac. I work alongside a small team of incredibly knowledgeable and caring individuals who share the same passion for getting it right. These are the questions we get asked every single day.
What's the difference between Flowpoint Premium Smooth and Flowpoint Premium Standard?
The Smooth grade has a finer aggregate, which means it can fill joints from just 3mm rather than 5mm. If your joints are wider than 5mm, Standard is fine. If you're working with tight joints — particularly porcelain — Smooth is the one to go for. Performance, set times and water ratio are otherwise identical.
What makes Stone Grey different from other grey grouts?
Flowpoint Premium Smooth Stone Grey is a genuinely pure grey — many grouts marketed as grey are actually a blend of black, beige and limestone pigments. This has been specifically developed to give the cleanest grey possible, which makes a real difference on contemporary grey porcelain or cool-toned stone where colour accuracy matters.
Why choose Stone Grey over Limestone or Yorkstone?
Stone Grey is the most versatile Smooth colour — a pure, neutral mid-tone that works with almost any paving without looking too dark or too warm. Particularly good with grey porcelain, sandstone, limestone and Indian Stone. If your paving has warmer or cream tones, Limestone or Yorkstone might be a better fit. Not sure? Send us a photo and we'll advise.
Can I use it with black limestone?
With care — use a temporary pre-sealer such as Tile Rite Patio Prep to prevent oxidisation. If you'd like advice on your specific stone, give us a call.
How long does it last?
Applied correctly, up to 40 years without the need to re-grout.
What's the set time?
30 minutes at 20°C, walkable after 1 hour. Warmer temperatures accelerate this; cooler ones slow it down. Use the thumb test — once the joint is firm and leaves only a slight thumbprint, start washing off.
Is it permeable?
No — a non-permeable, cementitious joint. Must be laid on a solid, non-permeable bed with adequate drainage fall.
Can I use it in the rain?
Yes — light rain is fine. A damp day can actually give you a bit more working time. Just make sure the joints aren't full of rainwater before you start.
Do I need to pre-seal?
Using a pre-sealer like Tile Rite Patio Prep: don't pre-soak — the sealer acts as the barrier. Without a sealer: thoroughly wet the paving, then remove all standing water before you start.
What's the shelf life?
8 months from the date of manufacture (printed on the bag), stored sealed in a cool, dry, frost-free area.
How much do I need?
Use the Flowpoint Calculator on this page for an accurate estimate. As a guide, one 25kg bag covers approximately 12–20m² for natural stone mixed packs, and 1.5–2m² for granite setts.
Want to learn more?
Read 'What is Flowpoint' or see our Flowpoint FAQs.
Want to order a pallet?
Call 0330 122 1025 for deals on a 56-bag full pallet with free standard delivery.
Questions about which grade or colour is right for your project? Get in touch or call 0330 122 1025 — we're always happy to help.
Flowpoint Premium Smooth Stone Grey — Full Technical Information
Product Overview
UltraScape Flowpoint Premium Smooth Stone Grey is a rapid-setting, flowable, cement-based paving grout with a smooth aggregate finish in a pure, neutral grey, for external use. It fills joints from just 3mm and produces strong, durable, weed-free joints. Supplied in showerproof 25kg bags with a water ratio of 4.25L per 25kg. Conforms to BS 7533.
Performance Data
| Property | Value |
|---|---|
| Classification | BS 7533 |
| Bond strength | Exceptional |
| Shrinkage | Shrinkage compensated |
| Initial set | 15–30 minutes at 20°C |
| Open to foot traffic | 1 hour |
| Open to vehicular traffic | 4 hours |
| Expected service life | Up to 40 years |
| Permeability | Non-permeable (impermeable bed required) |
| Weather resistance | Can be applied in light rain |
| Frost resistance | Do not apply below 3°C or if frost expected within 24 hours |
Application Data
| Property | Value |
|---|---|
| Water requirement | 4.25 litres per 25kg bag |
| Mixing time | 3–5 minutes |
| Working time after mixing | 15–30 minutes |
| Joint width | 3–50mm |
| Joint depth | 20–200mm (single application) |
| Supply format | 25kg showerproof paper bags |
| Colours available | Stone Grey, Limestone & Yorkstone |
Coverage Guide (approximate, per 25kg bag)
| Paving Type | Approximate Coverage |
|---|---|
| Natural Stone (mixed pack) | 12–20m² |
| Granite Setts | 1.5–2m² |
Suitable Substrates
- Grey or neutral porcelain (joints from 3mm)
- Sandstone & Indian Stone
- Limestone (pale varieties)
- Yorkstone & Cotswold Stone
- Granite setts
- Clay & concrete slabs
Note: Not recommended for use on some darker limestones (e.g. black limestone) without a temporary pre-sealer. Contact us for advice.
Storage & Shelf Life
- Shelf life: 8 months from date of manufacture (printed on the bag)
- Store in a cool, dry, frost-free area between 5°C and 30°C, in unopened, sealed bags
- Using after the declared storage period may increase the risk of an allergic reaction
Health & Safety
- Contains cement — wear appropriate PPE including gloves and eye protection
- Wet cement can cause serious skin burns — avoid prolonged skin contact
- Wash hands and exposed skin thoroughly after use
- Keep out of reach of children
- Full Safety Data Sheet (SDS) available on request or from the UltraScape website
For the full technical datasheet, download the PDF here. For project-specific advice, get in touch or call us on 0330 122 1025.
How to Mix & Apply Flowpoint Premium Smooth Paving Grout
Important — drainage: Make sure you have somewhere to push excess slurry grout, such as an area of lifted grass or a waste bucket. Never push excess Flowpoint into drains — it sets rapidly and will cause a permanent blockage.
Step 1 — Preparation
Without a temporary pre-sealer (standard method):
- Ensure joints are clean and free from debris, dust and loose material.
- Thoroughly pre-soak the paving surface and joints with water — the paving must be properly wet before you begin.
- Then remove all standing or ponded water from the surface and joints — a leaf blower is ideal. The paving should be damp, not waterlogged.
- Keep the surface moist throughout application by misting with a soft spray of water as you work.
With a temporary pre-grout sealer (e.g. Tile Rite Patio Prep or Nexus ProJoint Pre-Grout):
- Apply the temporary sealer in advance and allow it to dry as per the product instructions.
- Do not pre-soak the paving with water. The sealer acts as the protective barrier — water is not required until clean-down.
- Remove any standing water from the joints using a leaf blower before grouting begins.
- Always carry out a small trial area first to ensure compatibility with your stone type.
Step 2 — Mixing
- Add 4.25 litres of clean water per 25kg bag into a clean bucket or mixing vessel.
- Gradually add the Flowpoint Premium Smooth powder to the water and mix for 3–5 minutes until smooth and lump-free. Use a slow-speed drill and paddle mixer for best results.
- Only mix what you can apply in approximately 4 minutes — do not store liquid mortar.
- Never remix or add extra water once mixed.
Step 3 — Application
- Pour the mixed grout directly onto the paving surface.
- Using a neoprene squeegee & 3 section pole, force the mortar into the joints. Work methodically to ensure all joints are fully filled. Top up any joints where mortar has slumped after initial placement.
- Use the squeegee to remove as much excess mortar as possible from the surface as you go.
- If not using a temporary pre-sealer, keep the surface constantly moist using a soft water spray. If using a pre-sealer, water is not required until clean-down.
- Use the thumb test: once the joint is firm and leaves only a slight thumbprint, begin washing off.
- Clean the paving surface thoroughly using a brush and copious clean water. No mortar must remain on the surface.
- Wash all tools frequently during application.
Step 4 — Trafficking
- Foot traffic: after 1 hour (at 20°C)
- Vehicular traffic: after 4 hours (at 20°C)
- Cool temperatures retard set; warm temperatures accelerate it. Do not apply below 3°C or in direct sunlight.
Important Precautions
- Wear appropriate PPE — avoid skin and eye contact. Wet cement can cause serious burns.
- Never remix or add extra water once the mix has been prepared.
- Never push excess Flowpoint into drains — it will set and cause a permanent blockage.
- Do not apply below 3°C or if frost is expected within 24 hours.
- Do not apply in direct sunlight.
- Store in a cool, dry, frost-free area. Shelf life: 8 months from date of manufacture (printed on the bag).
Delivery & Returns Info
Our delivery charges are calculated based on the size and weight of your order. When you add items to your basket, the delivery charges are displayed. Small orders are distributed via courier; larger orders via Pallet Network. Collection is available from our Tamworth depot by request (contact us first to arrange on 0330 122 1025).
Please note, there is a slight surcharge for areas that are outside of our locality, charges calculated at checkout.
| Weight and size | Next Working Day* Order before 1PM (excl. VAT) |
Standard 3-5 Working Day (excl. VAT) |
|---|---|---|
| 0-13KG (1 small bag/tub) |
£14.00 | £9.00 |
| 13.01-25KG (1 large bag/tub) |
£16.00 | £10.00 |
| 25.01-50KG (2 bags/tubs) |
£26.00 | £19.00 |
| 50.01-75KG (3 bags/tubs) |
£36.00 | £28.00 |
| 75.01-100KG (4-5 bags/tubs) |
£46.00 | £37.00 |
| 100.01-249KG (6-9 bags/tubs) |
£60.00 | £45.00 |
| 249.01-750KG (10 bags plus) |
£68.00 | £48.00 |
| 750.01KG plus (30 bags plus) |
£75.00 | £55.00 |
| Full Pallets (56 bags/52 tubs) |
£88.00 | Free of charge |
| Next Working Day delivery (Premium 1-2 Working Day Service) | +avg. £5-10 Extra. Click here for prices |
|---|---|
| Scotland Delivery Service (Deliveries into some parts of Scotland can take 8-10 working days) | Click here for prices |
| Local Delivery & Click & Collect: | Email: orders@thepavingexperts.co.uk |
Delivery Information
- Prices apply to mainland England and Wales. Scottish delivery slight surcharge.
- Orders are packed and dispatched Monday–Friday (excluding weekends & public holidays).
Next Working Day Delivery
- Order before 1PM → same-day dispatch.
- Order after 1PM or on weekends/bank holidays → next working day dispatch.
- You'll receive tracking updates via email/SMS if you provide your details.
Delivery Examples
- Mon before 1PM → Packed Mon, delivered Tue.
- Mon after 1PM → Packed Tues delivered Wed.
- Fri before 1PM → Packed Fri, delivered Mon.
- Fri after 1PM/weekend → Packed Mon, delivered Tues (or Wed after a bank holiday).
- Standard Service: 3–5 working days.
Notes
- Occasional delays due to manufacturing, supply, or courier issues may happen, but we'll keep you informed.
Returns, cancel up to 14 days from date of delivery. Product to be returned in the same condition & packaging. No returns for cementitious & perishable products. You are responsible for the cost of returning goods to The Paving Experts, 20% admin restock fee applies. Need further info, click here.
For further detailed delivery information click here →
UltraScape Flowpoint Premium Smooth Paving Grout — Stone Grey | 25KG Bag
The Smooth-Finish Flowpoint in a Pure, Versatile Stone Grey — Joints from Just 3mm
Flowpoint Premium Smooth Stone Grey is one of the best rapid-set slurry grouts on the market for contractors and homeowners who need a finer aggregate finish from joints as narrow as 3mm. It combines the proven Flowpoint performance with a pure, neutral grey that works beautifully alongside grey porcelain, sandstone, limestone and most natural stone paving. It's a product our customers consistently come back to tell us they're delighted with: fast to apply, strong, weed-resistant joints that last up to 40 years.
Rapid-setting, BS 7533 compliant, joints from 3–50mm wide and 20–200mm deep, supplied in 25kg bags — Flowpoint Premium Smooth Stone Grey is a professional-strength paving grout equally at home on a domestic patio or a large-scale commercial landscaping project.
We're a small, family-run business — I'm Cleo, the owner, with over 25 years in the construction industry working with businesses including Tarmac and Instarmac. What makes Stone Grey special is that it's a genuinely pure grey — unlike many grouts on the market that mix black, beige and limestone to approximate a grey, Flowpoint Premium Smooth Stone Grey has been developed to give the purest grey possible. That matters a great deal when you're matching it to contemporary grey porcelain or cool-toned natural stone.
If you're jointing grey porcelain, sandstone, limestone, Indian Stone or most natural stone paving with joints from 3mm — this is the product we'd confidently recommend. For darker limestones such as black limestone, please use a temporary pre-sealer such as Tile Rite Patio Prep to prevent oxidisation, or give us a call and we'll advise.
What Contractors Say
GARETH WILSON — Hard Landscaping Expert & RHS Award Winner
"Keep your eye on the firmness of the joint — just with a little thumb test. Once firm, then begin washing off. Too many contractors start washing off when the product starts to dry on the slabs. You need to keep the slabs damp with a mist of water so it doesn't go off on them too soon."
JORDAN CLAYTON — Owner of Next Level Landscapes Ltd.
"Flowpoint is our go-to product when it comes to jointing all our paving. I love how it gives me confidence that the products will stand the test of time, allowing homeowners to enjoy their garden for years to come."
(Courtesy of Instarmac Group Plc)
Common Flowpoint Myths — Busted
| Myth | The Truth |
|---|---|
| Flowpoint is new and unproven | Developed around 25 years ago, used on thousands of major projects worldwide — including in New Zealand, Norway, America and Dubai. |
| It requires specialist equipment | Not at all. A paddle mixer and a long-handled neoprene squeegee are all you need beyond standard paving tools. |
| Flowpoint sticks to pavers | It doesn't set instantly. Keep the area damp and plan around the weather — particularly in hot conditions. |
| It causes cracking and low spots | This happens when it's washed off too early. Use the thumb test — if the joint is still bleeding, wait. |
| It works with every paving material | Most, yes — but not black limestone without a pre-sealer, as it can oxidise and cause staining. |
| It causes efflorescence | Applied correctly, it shouldn't. Problems usually come from an undried bed, too much water in the mix, or early pressure-washing. |
| Paving must be kept completely wet | Damp, not saturated. Too much water can dilute the mix and cause joint failure. |
| Slabs must sit for 28 days before grouting | The key is that the bedding mortar is properly cured with no visible dampness. Always follow the manufacturer's guidance. |
Use Flowpoint Premium Smooth Stone Grey with:
- Grey or neutral porcelain (joints from just 3mm)
- Sandstone & Indian Stone
- Limestone (pale varieties)
- Yorkstone & Cotswold Stone
- Granite setts (approx. 1 bag per 1.5m²)
- Clay & concrete slabs
Not recommended for some darker limestones such as black limestone without a pre-grout sealer. Use Tile Rite Patio Prep to prevent staining and oxidisation, or call us on 0330 122 1025 for advice.
Flowpoint Premium Smooth Stone Grey — Key Specs
- Unit size: 25kg bag
- Colours: Stone Grey | Also available in Limestone & Yorkstone
- Set time: 30 minutes at 20°C | Working time: approx. 4 minutes
- Foot traffic: 1 hour | Vehicles: 4 hours
- Classification: BS 7533
- Joint width: 3–50mm | Depth: 20–200mm
- Smooth aggregate finish — ideal for fine joints and porcelain
- Pure stone grey — not a mix of black, beige and limestone
- Shrinkage compensated | Exceptional bond strength
- Lasts up to 40 years without re-grouting
- Works in light rain | Shelf life: 8 months (unopened)
Flowpoint Grades & Colours — Which One Do You Need?
| Grade | Colours Available | Joint Width |
|---|---|---|
| Flowpoint Standard | Natural Grey & Charcoal | 5–50mm |
| Flowpoint Premium Standard | Stone Grey, Limestone & Yorkstone | 5–50mm |
| Flowpoint ECO | Natural Grey & Charcoal | 5–50mm |
| Flowpoint Smooth | Natural Grey & Charcoal | 3–50mm |
| Flowpoint Premium Smooth | Stone Grey, Limestone & Yorkstone | 3–50mm |
| Flowpoint Fine | Natural Grey & Charcoal | 2–50mm |
Frequently Asked Questions about UltraScape Flowpoint Premium Smooth Stone Grey
I'm Cleo, owner of The Paving Experts, with over 25 years in the construction industry working with businesses including Tarmac and Instarmac. I work alongside a small team of incredibly knowledgeable and caring individuals who share the same passion for getting it right. These are the questions we get asked every single day.
What's the difference between Flowpoint Premium Smooth and Flowpoint Premium Standard?
The Smooth grade has a finer aggregate, which means it can fill joints from just 3mm rather than 5mm. If your joints are wider than 5mm, Standard is fine. If you're working with tight joints — particularly porcelain — Smooth is the one to go for. Performance, set times and water ratio are otherwise identical.
What makes Stone Grey different from other grey grouts?
Flowpoint Premium Smooth Stone Grey is a genuinely pure grey — many grouts marketed as grey are actually a blend of black, beige and limestone pigments. This has been specifically developed to give the cleanest grey possible, which makes a real difference on contemporary grey porcelain or cool-toned stone where colour accuracy matters.
Why choose Stone Grey over Limestone or Yorkstone?
Stone Grey is the most versatile Smooth colour — a pure, neutral mid-tone that works with almost any paving without looking too dark or too warm. Particularly good with grey porcelain, sandstone, limestone and Indian Stone. If your paving has warmer or cream tones, Limestone or Yorkstone might be a better fit. Not sure? Send us a photo and we'll advise.
Can I use it with black limestone?
With care — use a temporary pre-sealer such as Tile Rite Patio Prep to prevent oxidisation. If you'd like advice on your specific stone, give us a call.
How long does it last?
Applied correctly, up to 40 years without the need to re-grout.
What's the set time?
30 minutes at 20°C, walkable after 1 hour. Warmer temperatures accelerate this; cooler ones slow it down. Use the thumb test — once the joint is firm and leaves only a slight thumbprint, start washing off.
Is it permeable?
No — a non-permeable, cementitious joint. Must be laid on a solid, non-permeable bed with adequate drainage fall.
Can I use it in the rain?
Yes — light rain is fine. A damp day can actually give you a bit more working time. Just make sure the joints aren't full of rainwater before you start.
Do I need to pre-seal?
Using a pre-sealer like Tile Rite Patio Prep: don't pre-soak — the sealer acts as the barrier. Without a sealer: thoroughly wet the paving, then remove all standing water before you start.
What's the shelf life?
8 months from the date of manufacture (printed on the bag), stored sealed in a cool, dry, frost-free area.
How much do I need?
Use the Flowpoint Calculator on this page for an accurate estimate. As a guide, one 25kg bag covers approximately 12–20m² for natural stone mixed packs, and 1.5–2m² for granite setts.
Want to learn more?
Read 'What is Flowpoint' or see our Flowpoint FAQs.
Want to order a pallet?
Call 0330 122 1025 for deals on a 56-bag full pallet with free standard delivery.
Questions about which grade or colour is right for your project? Get in touch or call 0330 122 1025 — we're always happy to help.
Flowpoint Premium Smooth Stone Grey — Full Technical Information
Product Overview
UltraScape Flowpoint Premium Smooth Stone Grey is a rapid-setting, flowable, cement-based paving grout with a smooth aggregate finish in a pure, neutral grey, for external use. It fills joints from just 3mm and produces strong, durable, weed-free joints. Supplied in showerproof 25kg bags with a water ratio of 4.25L per 25kg. Conforms to BS 7533.
Performance Data
| Property | Value |
|---|---|
| Classification | BS 7533 |
| Bond strength | Exceptional |
| Shrinkage | Shrinkage compensated |
| Initial set | 15–30 minutes at 20°C |
| Open to foot traffic | 1 hour |
| Open to vehicular traffic | 4 hours |
| Expected service life | Up to 40 years |
| Permeability | Non-permeable (impermeable bed required) |
| Weather resistance | Can be applied in light rain |
| Frost resistance | Do not apply below 3°C or if frost expected within 24 hours |
Application Data
| Property | Value |
|---|---|
| Water requirement | 4.25 litres per 25kg bag |
| Mixing time | 3–5 minutes |
| Working time after mixing | 15–30 minutes |
| Joint width | 3–50mm |
| Joint depth | 20–200mm (single application) |
| Supply format | 25kg showerproof paper bags |
| Colours available | Stone Grey, Limestone & Yorkstone |
Coverage Guide (approximate, per 25kg bag)
| Paving Type | Approximate Coverage |
|---|---|
| Natural Stone (mixed pack) | 12–20m² |
| Granite Setts | 1.5–2m² |
Suitable Substrates
- Grey or neutral porcelain (joints from 3mm)
- Sandstone & Indian Stone
- Limestone (pale varieties)
- Yorkstone & Cotswold Stone
- Granite setts
- Clay & concrete slabs
Note: Not recommended for use on some darker limestones (e.g. black limestone) without a temporary pre-sealer. Contact us for advice.
Storage & Shelf Life
- Shelf life: 8 months from date of manufacture (printed on the bag)
- Store in a cool, dry, frost-free area between 5°C and 30°C, in unopened, sealed bags
- Using after the declared storage period may increase the risk of an allergic reaction
Health & Safety
- Contains cement — wear appropriate PPE including gloves and eye protection
- Wet cement can cause serious skin burns — avoid prolonged skin contact
- Wash hands and exposed skin thoroughly after use
- Keep out of reach of children
- Full Safety Data Sheet (SDS) available on request or from the UltraScape website
For the full technical datasheet, download the PDF here. For project-specific advice, get in touch or call us on 0330 122 1025.
Delivery & Returns Info
Our delivery charges are calculated based on the size and weight of your order. When you add items to your basket, the delivery charges are displayed. Small orders are distributed via courier; larger orders via Pallet Network. Collection is available from our Tamworth depot by request (contact us first to arrange on 0330 122 1025).
Please note, there is a slight surcharge for areas that are outside of our locality, charges calculated at checkout.
| Weight and size | Next Working Day* Order before 1PM (excl. VAT) |
Standard 3-5 Working Day (excl. VAT) |
|---|---|---|
| 0-13KG (1 small bag/tub) |
£14.00 | £9.00 |
| 13.01-25KG (1 large bag/tub) |
£16.00 | £10.00 |
| 25.01-50KG (2 bags/tubs) |
£26.00 | £19.00 |
| 50.01-75KG (3 bags/tubs) |
£36.00 | £28.00 |
| 75.01-100KG (4-5 bags/tubs) |
£46.00 | £37.00 |
| 100.01-249KG (6-9 bags/tubs) |
£60.00 | £45.00 |
| 249.01-750KG (10 bags plus) |
£68.00 | £48.00 |
| 750.01KG plus (30 bags plus) |
£75.00 | £55.00 |
| Full Pallets (56 bags/52 tubs) |
£88.00 | Free of charge |
| Next Working Day delivery (Premium 1-2 Working Day Service) | +avg. £5-10 Extra. Click here for prices |
|---|---|
| Scotland Delivery Service (Deliveries into some parts of Scotland can take 8-10 working days) | Click here for prices |
| Local Delivery & Click & Collect: | Email: orders@thepavingexperts.co.uk |
Delivery Information
- Prices apply to mainland England and Wales. Scottish delivery slight surcharge.
- Orders are packed and dispatched Monday–Friday (excluding weekends & public holidays).
Next Working Day Delivery
- Order before 1PM → same-day dispatch.
- Order after 1PM or on weekends/bank holidays → next working day dispatch.
- You'll receive tracking updates via email/SMS if you provide your details.
Delivery Examples
- Mon before 1PM → Packed Mon, delivered Tue.
- Mon after 1PM → Packed Tues delivered Wed.
- Fri before 1PM → Packed Fri, delivered Mon.
- Fri after 1PM/weekend → Packed Mon, delivered Tues (or Wed after a bank holiday).
- Standard Service: 3–5 working days.
Notes
- Occasional delays due to manufacturing, supply, or courier issues may happen, but we'll keep you informed.
Returns, cancel up to 14 days from date of delivery. Product to be returned in the same condition & packaging. No returns for cementitious & perishable products. You are responsible for the cost of returning goods to The Paving Experts, 20% admin restock fee applies. Need further info, click here.
For further detailed delivery information click here →
How to Mix & Apply Flowpoint Premium Smooth Paving Grout
Important — drainage: Make sure you have somewhere to push excess slurry grout, such as an area of lifted grass or a waste bucket. Never push excess Flowpoint into drains — it sets rapidly and will cause a permanent blockage.
Step 1 — Preparation
Without a temporary pre-sealer (standard method):
- Ensure joints are clean and free from debris, dust and loose material.
- Thoroughly pre-soak the paving surface and joints with water — the paving must be properly wet before you begin.
- Then remove all standing or ponded water from the surface and joints — a leaf blower is ideal. The paving should be damp, not waterlogged.
- Keep the surface moist throughout application by misting with a soft spray of water as you work.
With a temporary pre-grout sealer (e.g. Tile Rite Patio Prep or Nexus ProJoint Pre-Grout):
- Apply the temporary sealer in advance and allow it to dry as per the product instructions.
- Do not pre-soak the paving with water. The sealer acts as the protective barrier — water is not required until clean-down.
- Remove any standing water from the joints using a leaf blower before grouting begins.
- Always carry out a small trial area first to ensure compatibility with your stone type.
Step 2 — Mixing
- Add 4.25 litres of clean water per 25kg bag into a clean bucket or mixing vessel.
- Gradually add the Flowpoint Premium Smooth powder to the water and mix for 3–5 minutes until smooth and lump-free. Use a slow-speed drill and paddle mixer for best results.
- Only mix what you can apply in approximately 4 minutes — do not store liquid mortar.
- Never remix or add extra water once mixed.
Step 3 — Application
- Pour the mixed grout directly onto the paving surface.
- Using a neoprene squeegee & 3 section pole, force the mortar into the joints. Work methodically to ensure all joints are fully filled. Top up any joints where mortar has slumped after initial placement.
- Use the squeegee to remove as much excess mortar as possible from the surface as you go.
- If not using a temporary pre-sealer, keep the surface constantly moist using a soft water spray. If using a pre-sealer, water is not required until clean-down.
- Use the thumb test: once the joint is firm and leaves only a slight thumbprint, begin washing off.
- Clean the paving surface thoroughly using a brush and copious clean water. No mortar must remain on the surface.
- Wash all tools frequently during application.
Step 4 — Trafficking
- Foot traffic: after 1 hour (at 20°C)
- Vehicular traffic: after 4 hours (at 20°C)
- Cool temperatures retard set; warm temperatures accelerate it. Do not apply below 3°C or in direct sunlight.
Important Precautions
- Wear appropriate PPE — avoid skin and eye contact. Wet cement can cause serious burns.
- Never remix or add extra water once the mix has been prepared.
- Never push excess Flowpoint into drains — it will set and cause a permanent blockage.
- Do not apply below 3°C or if frost is expected within 24 hours.
- Do not apply in direct sunlight.
- Store in a cool, dry, frost-free area. Shelf life: 8 months from date of manufacture (printed on the bag).