Ultrascape Flowpoint Charcoal: 28 x 25KG's
About the product
UltraScape Flowpoint Charcoal is a rapid-setting, flowable, cement-based paving grout that conforms to BS 7533. Mixed with water on site, it produces a deep-toned fluid slurry that is poured across the paving surface and worked into joints with a neoprene squeegee. Sets in 15 minutes at 20°C, open to foot traffic in 1 hour and vehicles in 4 hours. Suitable for granite setts, sandstone, limestone, porcelain, Indian Stone, Yorkstone, clay pavers and concrete flags. Lasts up to 40 years. This deal: 28 x 25kg bags.
Calculate required quantity
Ultrascape Flowpoint Charcoal: 28 x 25KG's
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.
How much you will need?
UltraScape Flowpoint Charcoal — Technical Information
| Product | UltraScape Flowpoint Standard Charcoal |
| Standard | BS 7533 compliant |
| Pack size | 25kg showerproof bags |
| This deal | 28 x 25kg bags |
| Colours available | Natural Grey, Charcoal |
| Joint width | 5–50mm |
| Joint depth | 20–200mm |
| Water per 25kg bag | 4.25 litres |
| Initial set time | 15 minutes at 20°C |
| Open to foot traffic | 1 hour |
| Open to vehicular traffic | 4 hours |
| Compressive strength | 49.6N/mm² |
| Approx. coverage — natural stone | 12–20m² per 25kg bag (28 bags: approx. 336–560m²) |
| Approx. coverage — granite setts | 1.5–2m² per 25kg bag (28 bags: approx. 42–56m²) |
| Shelf life | 8 months from date of manufacture (unopened, correct storage) |
| Permeable | No — non-permeable cementitious grout |
| Shrinkage compensated | Yes |
| Approvals | Approved for use on London Underground and Overground. NBS Source registered. |
| Manufacturer | Instarmac Group Plc |
How do you mix & apply Flowpoint grout?
- Ensure that your paving slabs & joints are free from debris and any ponded water
- Pre-soak the surface of the slabs & joints with water to ensure they are damp, but not drowned in water
- Pour a bag of Flowpoint into a bucket and add 4.25 litres of water
- Mix for 3–5 minutes until you have a smooth consistency, free of lumps
- Ensure the area is still damp, then apply the mixture immediately by carefully pushing the Flowpoint into the joints using a neoprene squeegee. Please note: Flowpoint can set within as little as 15 minutes (at temperatures of 20°C) so monitor the setting carefully
- Move the Flowpoint grout across the paving surface to top-up joints where the mortar may have sunk
- Use a neoprene squeegee to remove as much of the paving grout from the surface of the slabs — remembering to keep the surfaces constantly damp to prevent the grout from hardening
- Use a brush and lots of water — or alternatively a pressure washer or sponge machine — to remove any grout that has hardened on the paving surfaces
- Once the mortar is dry (after approx. 30 minutes), clean the surface of paving slabs thoroughly to remove any spots of mortar and prevent them from staining
- Your newly grouted patio will be ready to walk on after one hour, and can take vehicles after four hours
About the product
UltraScape Flowpoint Charcoal is a rapid-setting, flowable, cement-based paving grout that conforms to BS 7533. Mixed with water on site, it produces a deep-toned fluid slurry that is poured across the paving surface and worked into joints with a neoprene squeegee. Sets in 15 minutes at 20°C, open to foot traffic in 1 hour and vehicles in 4 hours. Suitable for granite setts, sandstone, limestone, porcelain, Indian Stone, Yorkstone, clay pavers and concrete flags. Lasts up to 40 years. This deal: 28 x 25kg bags.
UltraScape Flowpoint Charcoal | 28 x 25kg Bags
Rapid-Set Flowable Slurry Grout for Natural Stone & Granite Setts — 28 Bags
Flowpoint Charcoal is a rapid-set, flowable slurry grout — the professional’s choice for jointing natural stone and granite setts on mid-sized paving projects. Twenty-eight bags is the practical bulk quantity for contractors and confident self-builders who need more than a few bags but don’t require a full pallet — enough to complete a substantial driveway, courtyard or patio in a single session, in the charcoal tone that suits the scheme.
BS 7533 compliant, sets in 15 minutes at 20°C, joints from 5–50mm wide and 20–200mm deep, open to vehicles in 4 hours, supplied in 25kg showerproof bags — Flowpoint Charcoal delivers the same professional-strength performance as Natural Grey, in a darker tone.
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. When someone orders 28 bags of charcoal, they know their project. We’d back this product for whatever they’re working on.
Flowpoint Standard Charcoal works confidently across granite setts, sandstone, limestone, porcelain, Indian Stone, Yorkstone, clay pavers and concrete flags. If you’re working with darker limestones, use a temporary pre-sealer such as Tile Rite Patio Prep before grouting. Unsure? Read our black limestone guide or give us a call.
UltraScape Flowpoint Charcoal is a fast-curing, flowable, cement-based paving grout that produces a deep-toned fluid slurry when mixed with water on site. Poured across the paving surface and worked into joints with a neoprene squeegee, it sets to leave strong, durable, weed-resistant joints. Dramatically faster than hand-pointing, with a consistent charcoal finish that holds its tone over time.
What Do Industry Experts Say About Flowpoint?
Flowpoint Standard has been the backbone of the Flowpoint range for over 30 years. We asked Gareth Wilson, one of the UK’s most respected hard landscaping experts, for his view.
Gareth has 30 years in the landscaping trade, 30 Royal Horticultural Show (RHS) awards for show garden construction, and now works as an expert witness in hard landscaping:
GARETH WILSON — Hard Landscaping Expert & RHS Award Winner
“Some landscapers are stuck in their ways and they don’t like change. Their attitude is, ‘I’ve been doing this for 20 years… Why should I change now?’ And some are quite rightly scared when they consider pouring Flowpoint onto their slabs — at the end of the day, you are pouring a cementitious slurry directly onto the pavers. It goes against everything that you’ve been taught. But Flowpoint has been developed so it doesn’t stick to the paving.“In addition to its British Standard rating and the strength of the product, it’s also the speed at which you can install it. If you’re going to be on your hands and knees with a trowel and a three-to-one mortar mix, it will take you about five times as long to install, compared with using Flowpoint. Flowpoint is just so easy and quick to install that it makes you money. It’s a well-priced product and, in my view, a landscaper’s friend. Ultimately, it means less time on the job and more profit in your pocket.”
Approved for Use on the London Underground & Overground
Flowpoint is approved for use on the London Underground and London Overground and is NBS Source registered — straightforward to specify on commercial and public realm projects of any scale.
Common Flowpoint Myths — Busted
| Myth | The Truth |
|---|---|
| Myth #1: Flowpoint is a new product | Over 25 years in use, specified on thousands of projects worldwide — from New Zealand to Norway, America to Dubai. |
| Myth #2: You need specialist equipment | A paddle mixer and a long-handled neoprene squeegee. Everything else you likely already have. |
| Myth #3: It’s only for experienced contractors | Straightforward once you’ve seen it done. Do a trial area first. |
| Myth #4: Flowpoint sticks permanently to pavers | It doesn’t set instantly — keep the surface damp and time your work around the weather. |
| Myth #5: It causes cracking and low spots | Cracking happens when grout is cleaned off too early. Use the thumb test — if the joint is still soft, wait. |
| Myth #6: It works with every stone type | Works with most paving materials. Exception: black limestone without a temporary pre-sealer. |
| Myth #7: Flowpoint causes efflorescence | Not a product fault — caused by insufficient bed drying time, excess water in the mix, or pressure-washing too early. |
| Myth #8: The paving must be kept soaking wet | Damp, not saturated. Remove standing water before grouting, mist throughout. |
| Myth #9: Slabs must cure for 28 days first | The key is a solid, set, dry bed — not a fixed number of days. |
Flowpoint Standard Charcoal — Key Specification
- This deal: 28 x 25kg bags.
- How to identify your grade on delivery: The bag colour denotes the grade — black and orange bags are Flowpoint Standard; orange and blue are Flowpoint Smooth; orange and green are Flowpoint ECO. On all bags, the specific colour is printed on the white strip on the side of the bag.
- Colours: Natural Grey & Charcoal
- Set time: 15 minutes at 20°C
- Open to foot traffic: 1 hour
- Open to vehicular traffic: 4 hours
- Classification: BS 7533
- Compressive strength: 49.6N/mm²
- Exceptional bond strength
- Shrinkage compensated
- Approved for use on the London Underground and Overground
- NBS Source registered
- Joint width: 5–50mm | Depth: 20–200mm
- Lasts up to 40 years without re-grouting
- Suitable for use in light rain
- Shelf life: 8 months (unopened, correct storage)
Suitable Paving Types
- Granite setts
- Sandstone
- Limestone (use temporary pre-sealer for darker stones)
- Porcelain
- Indian Stone
- Yorkstone
- Clay pavers
- Concrete flags
Flowpoint Grades & Colours — Which One Do You Need?
| Grade | Colours | Joint Width | Joint Depth |
|---|---|---|---|
| Flowpoint Standard | Natural Grey & Charcoal | 5–50mm | 20–200mm |
| Flowpoint Premium Standard | Stone Grey, Limestone & Yorkstone | 5–50mm | 20–200mm |
| Flowpoint ECO | Natural Grey & Charcoal | 5–50mm | 20–200mm |
| Flowpoint Smooth | Natural Grey & Charcoal | 3–50mm | 20–200mm |
| Flowpoint Premium Smooth | Stone Grey, Limestone & Yorkstone | 3–50mm | 20–200mm |
| Flowpoint Fine | Natural Grey & Charcoal | 2–50mm | 20–200mm |
| Porcelpoint | Stone Grey & Limestone | 2–50mm | 20–200mm |
Approximate Coverage Guide (per 25kg bag)
- Natural Stone Mixed Packs: approx. 12–20m² per bag — 28 bags covers approximately 336–560m²
- Granite Setts: approx. 1.5–2m² per bag — 28 bags covers approximately 42–56m²
Use the Flowpoint Calculator on this page for an accurate estimate based on your joint size and paving area.
Frequently Asked Questions — UltraScape Flowpoint Charcoal (28 Bags)
I’m Cleo, owner of The Paving Experts. With over 25 years in the construction industry — including time with Tarmac and Instarmac — and a team around me who live and breathe paving, the answers below come from real questions we’re asked every day.
1. Is Flowpoint Charcoal the same as Flowpoint Natural Grey?
Same product, different pigment. The formulation, performance, application and specifications are identical — the only difference is the colour. Charcoal works well wherever a darker joint is called for: against pale porcelain, light sandstone, buff concrete or granite setts where contrast adds definition.
2. What is UltraScape Flowpoint?
UltraScape Flowpoint is a rapid-setting, flowable cement-based grout for jointing external paving. Pre-mixed and supplied in 25kg showerproof bags, it requires only the addition of water on site. It conforms to BS 7533, sets in 15 minutes at 20°C and lasts up to 40 years.
3. How quickly does Flowpoint set?
Initial set in 15 minutes at 20°C. Foot traffic after 1 hour, vehicular traffic after 4 hours. Always use the thumb test before cleaning down — if the joint still feels soft, wait longer.
4. Can Flowpoint be used on natural stone?
Yes — widely used on sandstone, limestone, Indian Stone, Yorkstone and granite setts. Always trial your specific stone first. For darker limestones such as black limestone, apply Tile Rite Patio Prep to prevent oxidisation.
5. How do you apply Flowpoint?
Pre-soak the paving and remove all ponded water. Add 4.25 litres of clean water per 25kg bag and mix for 3–5 minutes until smooth. Pour onto the paving and work into joints with a neoprene squeegee, keeping the surface misted. Clean down once initial set is reached.
6. How much water per bag?
Exactly 4.25 litres. Mix for 3–5 minutes until smooth and pourable. Only prepare what you can place in approximately 4 minutes.
7. Can Flowpoint be used in the rain?
Yes — light rain is fine and can extend your working window. Keep joints clear of ponded water. Avoid heavy rain or frost within 24 hours of application.
8. Is Flowpoint permeable?
No — non-permeable cementitious grout. Must be used on a solid, non-permeable bed. Need a permeable alternative? Contact us.
9. Do I need to pre-seal before using Flowpoint?
With a temporary pre-sealer (such as Tile Rite Patio Prep or Nexus ProJoint Pre-Grout): do not pre-soak.
Without a sealer: wet the paving thoroughly, then remove all standing water.
10. What is the shelf life?
8 months from the date of manufacture, printed on the white strip on the side of each bag. Store in a cool, dry, frost-free environment, clear of the ground.
Watch the video...
Please note: The videos below show Flowpoint Fine being applied. The mixing and application principles are identical for Flowpoint Standard — Flowpoint Fine and Porcelpoint require 3.4 litres per 20kg bucket; Flowpoint Standard, Smooth, ECO and Premium require 4.25 litres per 25kg bag.
Want to learn more about UltraScape Flowpoint?
Read ‘What is Flowpoint’ or see our Flowpoint FAQs.
Need a paving primer & bedding mortar?
We recommend the full UltraScape BS 7533 Mortar Paving System — including EcoBed, Pro-Prime, and Flowpoint.
Questions about coverage, your project or anything else? Get in touch or call 0330 122 1025.
- Brand: Instarmac
- Product Type: Paving Grout
- SKU: TPE-FLOCHARX28
- Weight: 700.0 kg / 1543.23 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 Charcoal | 28 x 25kg Bags
Rapid-Set Flowable Slurry Grout for Natural Stone & Granite Setts — 28 Bags
Flowpoint Charcoal is a rapid-set, flowable slurry grout — the professional’s choice for jointing natural stone and granite setts on mid-sized paving projects. Twenty-eight bags is the practical bulk quantity for contractors and confident self-builders who need more than a few bags but don’t require a full pallet — enough to complete a substantial driveway, courtyard or patio in a single session, in the charcoal tone that suits the scheme.
BS 7533 compliant, sets in 15 minutes at 20°C, joints from 5–50mm wide and 20–200mm deep, open to vehicles in 4 hours, supplied in 25kg showerproof bags — Flowpoint Charcoal delivers the same professional-strength performance as Natural Grey, in a darker tone.
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. When someone orders 28 bags of charcoal, they know their project. We’d back this product for whatever they’re working on.
Flowpoint Standard Charcoal works confidently across granite setts, sandstone, limestone, porcelain, Indian Stone, Yorkstone, clay pavers and concrete flags. If you’re working with darker limestones, use a temporary pre-sealer such as Tile Rite Patio Prep before grouting. Unsure? Read our black limestone guide or give us a call.
UltraScape Flowpoint Charcoal is a fast-curing, flowable, cement-based paving grout that produces a deep-toned fluid slurry when mixed with water on site. Poured across the paving surface and worked into joints with a neoprene squeegee, it sets to leave strong, durable, weed-resistant joints. Dramatically faster than hand-pointing, with a consistent charcoal finish that holds its tone over time.
What Do Industry Experts Say About Flowpoint?
Flowpoint Standard has been the backbone of the Flowpoint range for over 30 years. We asked Gareth Wilson, one of the UK’s most respected hard landscaping experts, for his view.
Gareth has 30 years in the landscaping trade, 30 Royal Horticultural Show (RHS) awards for show garden construction, and now works as an expert witness in hard landscaping:
GARETH WILSON — Hard Landscaping Expert & RHS Award Winner
“Some landscapers are stuck in their ways and they don’t like change. Their attitude is, ‘I’ve been doing this for 20 years… Why should I change now?’ And some are quite rightly scared when they consider pouring Flowpoint onto their slabs — at the end of the day, you are pouring a cementitious slurry directly onto the pavers. It goes against everything that you’ve been taught. But Flowpoint has been developed so it doesn’t stick to the paving.“In addition to its British Standard rating and the strength of the product, it’s also the speed at which you can install it. If you’re going to be on your hands and knees with a trowel and a three-to-one mortar mix, it will take you about five times as long to install, compared with using Flowpoint. Flowpoint is just so easy and quick to install that it makes you money. It’s a well-priced product and, in my view, a landscaper’s friend. Ultimately, it means less time on the job and more profit in your pocket.”
Approved for Use on the London Underground & Overground
Flowpoint is approved for use on the London Underground and London Overground and is NBS Source registered — straightforward to specify on commercial and public realm projects of any scale.
Common Flowpoint Myths — Busted
| Myth | The Truth |
|---|---|
| Myth #1: Flowpoint is a new product | Over 25 years in use, specified on thousands of projects worldwide — from New Zealand to Norway, America to Dubai. |
| Myth #2: You need specialist equipment | A paddle mixer and a long-handled neoprene squeegee. Everything else you likely already have. |
| Myth #3: It’s only for experienced contractors | Straightforward once you’ve seen it done. Do a trial area first. |
| Myth #4: Flowpoint sticks permanently to pavers | It doesn’t set instantly — keep the surface damp and time your work around the weather. |
| Myth #5: It causes cracking and low spots | Cracking happens when grout is cleaned off too early. Use the thumb test — if the joint is still soft, wait. |
| Myth #6: It works with every stone type | Works with most paving materials. Exception: black limestone without a temporary pre-sealer. |
| Myth #7: Flowpoint causes efflorescence | Not a product fault — caused by insufficient bed drying time, excess water in the mix, or pressure-washing too early. |
| Myth #8: The paving must be kept soaking wet | Damp, not saturated. Remove standing water before grouting, mist throughout. |
| Myth #9: Slabs must cure for 28 days first | The key is a solid, set, dry bed — not a fixed number of days. |
Flowpoint Standard Charcoal — Key Specification
- This deal: 28 x 25kg bags.
- How to identify your grade on delivery: The bag colour denotes the grade — black and orange bags are Flowpoint Standard; orange and blue are Flowpoint Smooth; orange and green are Flowpoint ECO. On all bags, the specific colour is printed on the white strip on the side of the bag.
- Colours: Natural Grey & Charcoal
- Set time: 15 minutes at 20°C
- Open to foot traffic: 1 hour
- Open to vehicular traffic: 4 hours
- Classification: BS 7533
- Compressive strength: 49.6N/mm²
- Exceptional bond strength
- Shrinkage compensated
- Approved for use on the London Underground and Overground
- NBS Source registered
- Joint width: 5–50mm | Depth: 20–200mm
- Lasts up to 40 years without re-grouting
- Suitable for use in light rain
- Shelf life: 8 months (unopened, correct storage)
Suitable Paving Types
- Granite setts
- Sandstone
- Limestone (use temporary pre-sealer for darker stones)
- Porcelain
- Indian Stone
- Yorkstone
- Clay pavers
- Concrete flags
Flowpoint Grades & Colours — Which One Do You Need?
| Grade | Colours | Joint Width | Joint Depth |
|---|---|---|---|
| Flowpoint Standard | Natural Grey & Charcoal | 5–50mm | 20–200mm |
| Flowpoint Premium Standard | Stone Grey, Limestone & Yorkstone | 5–50mm | 20–200mm |
| Flowpoint ECO | Natural Grey & Charcoal | 5–50mm | 20–200mm |
| Flowpoint Smooth | Natural Grey & Charcoal | 3–50mm | 20–200mm |
| Flowpoint Premium Smooth | Stone Grey, Limestone & Yorkstone | 3–50mm | 20–200mm |
| Flowpoint Fine | Natural Grey & Charcoal | 2–50mm | 20–200mm |
| Porcelpoint | Stone Grey & Limestone | 2–50mm | 20–200mm |
Approximate Coverage Guide (per 25kg bag)
- Natural Stone Mixed Packs: approx. 12–20m² per bag — 28 bags covers approximately 336–560m²
- Granite Setts: approx. 1.5–2m² per bag — 28 bags covers approximately 42–56m²
Use the Flowpoint Calculator on this page for an accurate estimate based on your joint size and paving area.
Frequently Asked Questions — UltraScape Flowpoint Charcoal (28 Bags)
I’m Cleo, owner of The Paving Experts. With over 25 years in the construction industry — including time with Tarmac and Instarmac — and a team around me who live and breathe paving, the answers below come from real questions we’re asked every day.
1. Is Flowpoint Charcoal the same as Flowpoint Natural Grey?
Same product, different pigment. The formulation, performance, application and specifications are identical — the only difference is the colour. Charcoal works well wherever a darker joint is called for: against pale porcelain, light sandstone, buff concrete or granite setts where contrast adds definition.
2. What is UltraScape Flowpoint?
UltraScape Flowpoint is a rapid-setting, flowable cement-based grout for jointing external paving. Pre-mixed and supplied in 25kg showerproof bags, it requires only the addition of water on site. It conforms to BS 7533, sets in 15 minutes at 20°C and lasts up to 40 years.
3. How quickly does Flowpoint set?
Initial set in 15 minutes at 20°C. Foot traffic after 1 hour, vehicular traffic after 4 hours. Always use the thumb test before cleaning down — if the joint still feels soft, wait longer.
4. Can Flowpoint be used on natural stone?
Yes — widely used on sandstone, limestone, Indian Stone, Yorkstone and granite setts. Always trial your specific stone first. For darker limestones such as black limestone, apply Tile Rite Patio Prep to prevent oxidisation.
5. How do you apply Flowpoint?
Pre-soak the paving and remove all ponded water. Add 4.25 litres of clean water per 25kg bag and mix for 3–5 minutes until smooth. Pour onto the paving and work into joints with a neoprene squeegee, keeping the surface misted. Clean down once initial set is reached.
6. How much water per bag?
Exactly 4.25 litres. Mix for 3–5 minutes until smooth and pourable. Only prepare what you can place in approximately 4 minutes.
7. Can Flowpoint be used in the rain?
Yes — light rain is fine and can extend your working window. Keep joints clear of ponded water. Avoid heavy rain or frost within 24 hours of application.
8. Is Flowpoint permeable?
No — non-permeable cementitious grout. Must be used on a solid, non-permeable bed. Need a permeable alternative? Contact us.
9. Do I need to pre-seal before using Flowpoint?
With a temporary pre-sealer (such as Tile Rite Patio Prep or Nexus ProJoint Pre-Grout): do not pre-soak.
Without a sealer: wet the paving thoroughly, then remove all standing water.
10. What is the shelf life?
8 months from the date of manufacture, printed on the white strip on the side of each bag. Store in a cool, dry, frost-free environment, clear of the ground.
Watch the video...
Please note: The videos below show Flowpoint Fine being applied. The mixing and application principles are identical for Flowpoint Standard — Flowpoint Fine and Porcelpoint require 3.4 litres per 20kg bucket; Flowpoint Standard, Smooth, ECO and Premium require 4.25 litres per 25kg bag.
Want to learn more about UltraScape Flowpoint?
Read ‘What is Flowpoint’ or see our Flowpoint FAQs.
Need a paving primer & bedding mortar?
We recommend the full UltraScape BS 7533 Mortar Paving System — including EcoBed, Pro-Prime, and Flowpoint.
Questions about coverage, your project or anything else? Get in touch or call 0330 122 1025.
UltraScape Flowpoint Charcoal — Technical Information
| Product | UltraScape Flowpoint Standard Charcoal |
| Standard | BS 7533 compliant |
| Pack size | 25kg showerproof bags |
| This deal | 28 x 25kg bags |
| Colours available | Natural Grey, Charcoal |
| Joint width | 5–50mm |
| Joint depth | 20–200mm |
| Water per 25kg bag | 4.25 litres |
| Initial set time | 15 minutes at 20°C |
| Open to foot traffic | 1 hour |
| Open to vehicular traffic | 4 hours |
| Compressive strength | 49.6N/mm² |
| Approx. coverage — natural stone | 12–20m² per 25kg bag (28 bags: approx. 336–560m²) |
| Approx. coverage — granite setts | 1.5–2m² per 25kg bag (28 bags: approx. 42–56m²) |
| Shelf life | 8 months from date of manufacture (unopened, correct storage) |
| Permeable | No — non-permeable cementitious grout |
| Shrinkage compensated | Yes |
| Approvals | Approved for use on London Underground and Overground. NBS Source registered. |
| Manufacturer | Instarmac Group Plc |
How do you mix & apply Flowpoint grout?
- Ensure that your paving slabs & joints are free from debris and any ponded water
- Pre-soak the surface of the slabs & joints with water to ensure they are damp, but not drowned in water
- Pour a bag of Flowpoint into a bucket and add 4.25 litres of water
- Mix for 3–5 minutes until you have a smooth consistency, free of lumps
- Ensure the area is still damp, then apply the mixture immediately by carefully pushing the Flowpoint into the joints using a neoprene squeegee. Please note: Flowpoint can set within as little as 15 minutes (at temperatures of 20°C) so monitor the setting carefully
- Move the Flowpoint grout across the paving surface to top-up joints where the mortar may have sunk
- Use a neoprene squeegee to remove as much of the paving grout from the surface of the slabs — remembering to keep the surfaces constantly damp to prevent the grout from hardening
- Use a brush and lots of water — or alternatively a pressure washer or sponge machine — to remove any grout that has hardened on the paving surfaces
- Once the mortar is dry (after approx. 30 minutes), clean the surface of paving slabs thoroughly to remove any spots of mortar and prevent them from staining
- Your newly grouted patio will be ready to walk on after one hour, and can take vehicles after four hours
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 Charcoal | 28 x 25kg Bags
Rapid-Set Flowable Slurry Grout for Natural Stone & Granite Setts — 28 Bags
Flowpoint Charcoal is a rapid-set, flowable slurry grout — the professional’s choice for jointing natural stone and granite setts on mid-sized paving projects. Twenty-eight bags is the practical bulk quantity for contractors and confident self-builders who need more than a few bags but don’t require a full pallet — enough to complete a substantial driveway, courtyard or patio in a single session, in the charcoal tone that suits the scheme.
BS 7533 compliant, sets in 15 minutes at 20°C, joints from 5–50mm wide and 20–200mm deep, open to vehicles in 4 hours, supplied in 25kg showerproof bags — Flowpoint Charcoal delivers the same professional-strength performance as Natural Grey, in a darker tone.
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. When someone orders 28 bags of charcoal, they know their project. We’d back this product for whatever they’re working on.
Flowpoint Standard Charcoal works confidently across granite setts, sandstone, limestone, porcelain, Indian Stone, Yorkstone, clay pavers and concrete flags. If you’re working with darker limestones, use a temporary pre-sealer such as Tile Rite Patio Prep before grouting. Unsure? Read our black limestone guide or give us a call.
UltraScape Flowpoint Charcoal is a fast-curing, flowable, cement-based paving grout that produces a deep-toned fluid slurry when mixed with water on site. Poured across the paving surface and worked into joints with a neoprene squeegee, it sets to leave strong, durable, weed-resistant joints. Dramatically faster than hand-pointing, with a consistent charcoal finish that holds its tone over time.
What Do Industry Experts Say About Flowpoint?
Flowpoint Standard has been the backbone of the Flowpoint range for over 30 years. We asked Gareth Wilson, one of the UK’s most respected hard landscaping experts, for his view.
Gareth has 30 years in the landscaping trade, 30 Royal Horticultural Show (RHS) awards for show garden construction, and now works as an expert witness in hard landscaping:
GARETH WILSON — Hard Landscaping Expert & RHS Award Winner
“Some landscapers are stuck in their ways and they don’t like change. Their attitude is, ‘I’ve been doing this for 20 years… Why should I change now?’ And some are quite rightly scared when they consider pouring Flowpoint onto their slabs — at the end of the day, you are pouring a cementitious slurry directly onto the pavers. It goes against everything that you’ve been taught. But Flowpoint has been developed so it doesn’t stick to the paving.“In addition to its British Standard rating and the strength of the product, it’s also the speed at which you can install it. If you’re going to be on your hands and knees with a trowel and a three-to-one mortar mix, it will take you about five times as long to install, compared with using Flowpoint. Flowpoint is just so easy and quick to install that it makes you money. It’s a well-priced product and, in my view, a landscaper’s friend. Ultimately, it means less time on the job and more profit in your pocket.”
Approved for Use on the London Underground & Overground
Flowpoint is approved for use on the London Underground and London Overground and is NBS Source registered — straightforward to specify on commercial and public realm projects of any scale.
Common Flowpoint Myths — Busted
| Myth | The Truth |
|---|---|
| Myth #1: Flowpoint is a new product | Over 25 years in use, specified on thousands of projects worldwide — from New Zealand to Norway, America to Dubai. |
| Myth #2: You need specialist equipment | A paddle mixer and a long-handled neoprene squeegee. Everything else you likely already have. |
| Myth #3: It’s only for experienced contractors | Straightforward once you’ve seen it done. Do a trial area first. |
| Myth #4: Flowpoint sticks permanently to pavers | It doesn’t set instantly — keep the surface damp and time your work around the weather. |
| Myth #5: It causes cracking and low spots | Cracking happens when grout is cleaned off too early. Use the thumb test — if the joint is still soft, wait. |
| Myth #6: It works with every stone type | Works with most paving materials. Exception: black limestone without a temporary pre-sealer. |
| Myth #7: Flowpoint causes efflorescence | Not a product fault — caused by insufficient bed drying time, excess water in the mix, or pressure-washing too early. |
| Myth #8: The paving must be kept soaking wet | Damp, not saturated. Remove standing water before grouting, mist throughout. |
| Myth #9: Slabs must cure for 28 days first | The key is a solid, set, dry bed — not a fixed number of days. |
Flowpoint Standard Charcoal — Key Specification
- This deal: 28 x 25kg bags.
- How to identify your grade on delivery: The bag colour denotes the grade — black and orange bags are Flowpoint Standard; orange and blue are Flowpoint Smooth; orange and green are Flowpoint ECO. On all bags, the specific colour is printed on the white strip on the side of the bag.
- Colours: Natural Grey & Charcoal
- Set time: 15 minutes at 20°C
- Open to foot traffic: 1 hour
- Open to vehicular traffic: 4 hours
- Classification: BS 7533
- Compressive strength: 49.6N/mm²
- Exceptional bond strength
- Shrinkage compensated
- Approved for use on the London Underground and Overground
- NBS Source registered
- Joint width: 5–50mm | Depth: 20–200mm
- Lasts up to 40 years without re-grouting
- Suitable for use in light rain
- Shelf life: 8 months (unopened, correct storage)
Suitable Paving Types
- Granite setts
- Sandstone
- Limestone (use temporary pre-sealer for darker stones)
- Porcelain
- Indian Stone
- Yorkstone
- Clay pavers
- Concrete flags
Flowpoint Grades & Colours — Which One Do You Need?
| Grade | Colours | Joint Width | Joint Depth |
|---|---|---|---|
| Flowpoint Standard | Natural Grey & Charcoal | 5–50mm | 20–200mm |
| Flowpoint Premium Standard | Stone Grey, Limestone & Yorkstone | 5–50mm | 20–200mm |
| Flowpoint ECO | Natural Grey & Charcoal | 5–50mm | 20–200mm |
| Flowpoint Smooth | Natural Grey & Charcoal | 3–50mm | 20–200mm |
| Flowpoint Premium Smooth | Stone Grey, Limestone & Yorkstone | 3–50mm | 20–200mm |
| Flowpoint Fine | Natural Grey & Charcoal | 2–50mm | 20–200mm |
| Porcelpoint | Stone Grey & Limestone | 2–50mm | 20–200mm |
Approximate Coverage Guide (per 25kg bag)
- Natural Stone Mixed Packs: approx. 12–20m² per bag — 28 bags covers approximately 336–560m²
- Granite Setts: approx. 1.5–2m² per bag — 28 bags covers approximately 42–56m²
Use the Flowpoint Calculator on this page for an accurate estimate based on your joint size and paving area.
Frequently Asked Questions — UltraScape Flowpoint Charcoal (28 Bags)
I’m Cleo, owner of The Paving Experts. With over 25 years in the construction industry — including time with Tarmac and Instarmac — and a team around me who live and breathe paving, the answers below come from real questions we’re asked every day.
1. Is Flowpoint Charcoal the same as Flowpoint Natural Grey?
Same product, different pigment. The formulation, performance, application and specifications are identical — the only difference is the colour. Charcoal works well wherever a darker joint is called for: against pale porcelain, light sandstone, buff concrete or granite setts where contrast adds definition.
2. What is UltraScape Flowpoint?
UltraScape Flowpoint is a rapid-setting, flowable cement-based grout for jointing external paving. Pre-mixed and supplied in 25kg showerproof bags, it requires only the addition of water on site. It conforms to BS 7533, sets in 15 minutes at 20°C and lasts up to 40 years.
3. How quickly does Flowpoint set?
Initial set in 15 minutes at 20°C. Foot traffic after 1 hour, vehicular traffic after 4 hours. Always use the thumb test before cleaning down — if the joint still feels soft, wait longer.
4. Can Flowpoint be used on natural stone?
Yes — widely used on sandstone, limestone, Indian Stone, Yorkstone and granite setts. Always trial your specific stone first. For darker limestones such as black limestone, apply Tile Rite Patio Prep to prevent oxidisation.
5. How do you apply Flowpoint?
Pre-soak the paving and remove all ponded water. Add 4.25 litres of clean water per 25kg bag and mix for 3–5 minutes until smooth. Pour onto the paving and work into joints with a neoprene squeegee, keeping the surface misted. Clean down once initial set is reached.
6. How much water per bag?
Exactly 4.25 litres. Mix for 3–5 minutes until smooth and pourable. Only prepare what you can place in approximately 4 minutes.
7. Can Flowpoint be used in the rain?
Yes — light rain is fine and can extend your working window. Keep joints clear of ponded water. Avoid heavy rain or frost within 24 hours of application.
8. Is Flowpoint permeable?
No — non-permeable cementitious grout. Must be used on a solid, non-permeable bed. Need a permeable alternative? Contact us.
9. Do I need to pre-seal before using Flowpoint?
With a temporary pre-sealer (such as Tile Rite Patio Prep or Nexus ProJoint Pre-Grout): do not pre-soak.
Without a sealer: wet the paving thoroughly, then remove all standing water.
10. What is the shelf life?
8 months from the date of manufacture, printed on the white strip on the side of each bag. Store in a cool, dry, frost-free environment, clear of the ground.
Watch the video...
Please note: The videos below show Flowpoint Fine being applied. The mixing and application principles are identical for Flowpoint Standard — Flowpoint Fine and Porcelpoint require 3.4 litres per 20kg bucket; Flowpoint Standard, Smooth, ECO and Premium require 4.25 litres per 25kg bag.
Want to learn more about UltraScape Flowpoint?
Read ‘What is Flowpoint’ or see our Flowpoint FAQs.
Need a paving primer & bedding mortar?
We recommend the full UltraScape BS 7533 Mortar Paving System — including EcoBed, Pro-Prime, and Flowpoint.
Questions about coverage, your project or anything else? Get in touch or call 0330 122 1025.
UltraScape Flowpoint Charcoal — Technical Information
| Product | UltraScape Flowpoint Standard Charcoal |
| Standard | BS 7533 compliant |
| Pack size | 25kg showerproof bags |
| This deal | 28 x 25kg bags |
| Colours available | Natural Grey, Charcoal |
| Joint width | 5–50mm |
| Joint depth | 20–200mm |
| Water per 25kg bag | 4.25 litres |
| Initial set time | 15 minutes at 20°C |
| Open to foot traffic | 1 hour |
| Open to vehicular traffic | 4 hours |
| Compressive strength | 49.6N/mm² |
| Approx. coverage — natural stone | 12–20m² per 25kg bag (28 bags: approx. 336–560m²) |
| Approx. coverage — granite setts | 1.5–2m² per 25kg bag (28 bags: approx. 42–56m²) |
| Shelf life | 8 months from date of manufacture (unopened, correct storage) |
| Permeable | No — non-permeable cementitious grout |
| Shrinkage compensated | Yes |
| Approvals | Approved for use on London Underground and Overground. NBS Source registered. |
| Manufacturer | Instarmac Group Plc |
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 do you mix & apply Flowpoint grout?
- Ensure that your paving slabs & joints are free from debris and any ponded water
- Pre-soak the surface of the slabs & joints with water to ensure they are damp, but not drowned in water
- Pour a bag of Flowpoint into a bucket and add 4.25 litres of water
- Mix for 3–5 minutes until you have a smooth consistency, free of lumps
- Ensure the area is still damp, then apply the mixture immediately by carefully pushing the Flowpoint into the joints using a neoprene squeegee. Please note: Flowpoint can set within as little as 15 minutes (at temperatures of 20°C) so monitor the setting carefully
- Move the Flowpoint grout across the paving surface to top-up joints where the mortar may have sunk
- Use a neoprene squeegee to remove as much of the paving grout from the surface of the slabs — remembering to keep the surfaces constantly damp to prevent the grout from hardening
- Use a brush and lots of water — or alternatively a pressure washer or sponge machine — to remove any grout that has hardened on the paving surfaces
- Once the mortar is dry (after approx. 30 minutes), clean the surface of paving slabs thoroughly to remove any spots of mortar and prevent them from staining
- Your newly grouted patio will be ready to walk on after one hour, and can take vehicles after four hours