UltraScape Flowpoint Premium Paving Grout - Stone Grey

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UltraScape Flowpoint Premium Paving Grout - Stone Grey

£24.49 ex. VAT £29.39 inc VAT
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Flowpoint Premium Paving Grout
In stock
£24.49
£29.39 inc VAT
PRICE PROMISE
For Next Working DayOrder within 00H : 00M : 00 sec(s)
Free Click & Collect on selected products Next-day & standard delivery available at checkout

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DELIVERY TO MAINLAND UK ONLY

For Highlands, Guernsey, Jersey, Isle of Man, and Isle of Wight – call 0330 122 1025.

Colour: Stone Grey
£24.49
£29.39 inc VAT
PRICE PROMISE
For Next Working DayOrder within 00H : 00M : 00 sec(s)
Free Click & Collect on selected products Next-day & standard delivery available at checkout

See full delivery info →
DELIVERY TO MAINLAND UK ONLY

For Highlands, Guernsey, Jersey, Isle of Man, and Isle of Wight – call 0330 122 1025.

Colour: Stone Grey

How much you will need?

meters sq.
mm
mm
mm
mm
You require: 0 x 25kg Unit

About the product

UltraScape Flowpoint Premium Paving Grout — Stone Grey | 25KG Bag

The Same Trusted Flowpoint Performance — Now in a Pure, Versatile Stone Grey

Flowpoint Premium Stone Grey is one of the best rapid-set slurry paving grouts on the market — the proven Flowpoint formula now available in a rich, pure stone grey developed for projects where colour matters as much as performance. It fills joints from 5–50mm, sets in 30 minutes at 20°C, and can be open to vehicles in just 4 hours. It’s BS 7533 compliant, NBS Source registered, and built to last up to 40 years.

What makes Stone Grey special is that it’s a genuinely pure grey — not a blend of black, beige and limestone pigments that approximates grey. It’s been developed to give the cleanest, most consistent grey finish possible, which makes it particularly effective alongside contemporary grey porcelain, sandstone, limestone and most natural stone paving.

We’re a small, family-run business — I’m Cleo, the owner, with over 25 years in the construction industry, having worked with businesses such as Tarmac and Instarmac. I work alongside a team of incredibly knowledgeable and caring individuals. If you’re not sure whether Stone Grey is the right match for your stone, just give us a call — we’re happy to advise.

Find a cheaper quote for the same product? We’ll do our best to match it. Call us on 0330 122 1025.

What Contractors Say

“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.”
— Gareth Wilson, Hard Landscaping Expert & RHS Award Winner (30 years in the trade, 30 RHS show garden awards)

“Flowpoint is our go-to product when it comes to jointing all our paving. Like the rest of the materials, 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.”
— Jordan Clayton, Owner of Next Level Landscapes Ltd. (Courtesy of Instarmac Group Plc)

Which Flowpoint Colour Should I Choose?

Colour Positioning Best Suited To
Limestone Light, warm, rustic Indian sandstone, lighter natural stone, traditional/country-style paving
Stone Grey Modern, contemporary grey Mixed light/dark natural stone and contemporary paving
Yorkstone Warm, golden buff Yorkstone, buff concrete flags, warm-toned sandstone
Natural Grey Standard Flowpoint grey General paving applications
Charcoal Darker standard Flowpoint colour Dark paving, stronger contrast and contemporary schemes

Limestone works particularly well with lighter, rustic natural stone such as Indian sandstone. Stone Grey pairs with paving stones and a mix of dark and light natural stone — both descriptions are taken from Instarmac’s own product positioning.

Which Stones Does Flowpoint Premium Stone Grey Suit Best?

Stone Type Tone Match Rating
Grey Porcelain Cool / neutral grey ⭐⭐⭐⭐⭐
Sandstone (grey tones) Buff / grey / silver ⭐⭐⭐⭐⭐
Indian Stone (silver / grey) Silver / grey ⭐⭐⭐⭐⭐
Limestone (grey varieties) Grey / blue-grey ⭐⭐⭐⭐⭐
Granite Setts Grey / silver ⭐⭐⭐⭐⭐
Yorkstone Buff / grey / beige ⭐⭐⭐⭐
Slate Dark grey / blue-grey ⭐⭐⭐⭐
Clay Pavers (grey) Mid grey ⭐⭐⭐⭐⭐
Concrete Flags Mid grey ⭐⭐⭐⭐⭐

Not sure if Stone Grey is right for your project? Send us a photo or give us a call — we’re happy to help with colour matching.

Common Flowpoint Myths — Busted

Myth The Truth
Flowpoint is new and unproven Flowpoint was developed by Instarmac around 25 years ago and has been used on thousands of projects worldwide — including in New Zealand, Norway, America and Dubai.
Flowpoint 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 the slabs It doesn’t set instantly. Keep the surface damp throughout and plan around the weather — particularly in hot conditions.
Flowpoint 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.
Flowpoint causes efflorescence When applied correctly it shouldn’t. Problems usually come from an insufficiently dried bed, too much water in the mix, or pressure-washing too early.
Slabs must sit 28 days before grouting The key is that the bedding mortar is properly cured with no visible dampness. Always follow the manufacturer’s guidance.

Flowpoint Grades & Colours — Which One Do You Need?

Grade Colours Available Joint Width Best For
Flowpoint Standard Natural Grey & Charcoal 5–50mm General paving, granite setts
Flowpoint Premium Standard Stone Grey, Limestone & Yorkstone 5–50mm Premium colour palette for colour-matched joints
Flowpoint ECO Natural Grey & Charcoal 5–50mm Sustainability-specified projects, CEEQUAL/BREEAM
Flowpoint Smooth Natural Grey & Charcoal 3–50mm Porcelain, narrow joints
Flowpoint Premium Smooth Stone Grey, Limestone & Yorkstone 3–50mm Premium colours for porcelain & narrow joints
Flowpoint Fine Natural Grey & Charcoal 2–50mm Porcelain, sawn stone, no visible aggregate
Porcelpoint (Stone Grey) Stone Grey & Limestone 2–50mm Fine, aggregate-free finish in premium colours — ideal for porcelain

Key Specs

  • Unit size: 25KG bag
  • Colours: Stone Grey | Also available in Limestone & Yorkstone
  • Joint width: 5–50mm | Joint depth: 20–200mm
  • Water: 4.25L per 25KG bag | Working time: approx. 4 minutes
  • Set time: 30 minutes at 20°C
  • Foot traffic: 1 hour | Vehicles: 4 hours
  • Classification: BS 7533 | NBS Source registered
  • Exceptional bond strength | Shrinkage compensated
  • Service life: up to 40 years
  • Shelf life: 8 months from manufacture (printed on bag) | cool, dry, frost-free storage

Suitable For

Flowpoint Premium Stone Grey is ideal for all pavements where a rigid, bound, void-free joint is required — town centre pedestrian schemes, pathways and carriageways, commercial and domestic patios and driveways. Works with natural stone, concrete flags, clay pavers, granite setts and most porcelain (joints from 5mm). For joints narrower than 5mm, see Flowpoint Premium Smooth Stone Grey.

Please note: not recommended for some darker limestones (e.g. black limestone) without a temporary pre-sealer. Use Tile Rite Patio Prep on porous or sensitive stones. Call us if unsure.

How to Apply — Quick Reference

  1. Ensure joints are free from debris and all ponded water is removed.
  2. Pre-soak paving surface and joints — keep damp throughout. Or apply a temporary pre-sealer (e.g. Tile Rite Patio Prep) and skip the pre-soak.
  3. Add 4.25L of clean water per 25KG bag. Mix with a paddle mixer for 3–5 minutes until smooth and lump-free.
  4. Mix only what you can apply in approx. 4 minutes. Never store liquid mortar or add extra water.
  5. Pour over paving and force into joints using a long-handled neoprene squeegee. Keep surface damp.
  6. Squeegee off as much mortar as possible from the surface.
  7. Once the joint is firm (thumb test — no bleed), clean down thoroughly with brush and copious clean water.

Frequently Asked Questions

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 is UltraScape Flowpoint Premium?

UltraScape Flowpoint Premium is a rapid-set slurry jointing mortar with a high-fluid consistency, designed to create rigid, bound and void-free joints in paving. It has the same characteristics and properties as standard UltraScape Flowpoint, but is available in premium Limestone, Stone Grey and Yorkstone colours.

What is Flowpoint Premium used for?

Flowpoint Premium is designed for paving areas where a rigid or bound, void-free joint is required. It is suitable for natural stone, concrete flags and clay pavers, including town centre pedestrian schemes, pathways and carriageways.

What colours does UltraScape Flowpoint Premium come in?

UltraScape Flowpoint Premium is available in Limestone, Stone Grey and Yorkstone, providing premium colour options designed to complement different paving styles and colours.

What is the difference between Flowpoint Premium and standard Flowpoint?

Flowpoint Premium has the same characteristics and properties as standard UltraScape Flowpoint, but is available in premium Limestone, Stone Grey and Yorkstone colours. Standard Flowpoint is available in Natural Grey and Charcoal.

What is the difference between Flowpoint Premium Limestone and Natural Grey?

Flowpoint Premium Limestone is a lighter, warmer jointing colour designed to complement lighter and more rustic-toned natural stone, while Natural Grey is the standard Flowpoint grey option. Limestone is particularly suited to paving such as Indian sandstone and other lighter natural stone. Instarmac specifically describes Limestone as creating a “countrified aesthetic” and pairing well with lighter, rustic natural stone such as Indian sandstone.

What is the difference between Flowpoint Premium Stone Grey and Natural Grey?

Flowpoint Premium Stone Grey is a premium colour within the Flowpoint range, while Natural Grey is the standard Flowpoint colour. Stone Grey is intended to provide a modern, contemporary look and is particularly suited to paving stones and a mixture of darker and lighter natural stone.

What is the difference between Flowpoint Premium Stone Grey and Charcoal?

Stone Grey is a lighter, more contemporary grey option, while Charcoal is the darker standard Flowpoint colour. Stone Grey is designed to complement both light and dark natural stone, whereas Charcoal provides a stronger, darker contrast. Instarmac lists Stone Grey as a Premium colour and Charcoal as one of the standard Flowpoint colours.

Which Flowpoint colour is best for Indian sandstone?

Flowpoint Premium Limestone is particularly suited to Indian sandstone and lighter, rustic-toned natural stone. Instarmac describes Limestone as creating a warm, countrified aesthetic that complements these paving styles.

Which Flowpoint colour should I choose for natural stone paving?

The best Flowpoint colour depends on the paving’s colour and the finish you want. Limestone is suited to lighter, warmer and rustic natural stone, while Stone Grey provides a more modern look and complements both darker and lighter natural stone. Yorkstone suits warm buff and golden-toned stone. Natural Grey and Charcoal are the standard Flowpoint colour options.

Is Flowpoint Premium suitable for natural stone paving?

Yes. Flowpoint Premium is suitable for natural stone paving, as well as concrete flags and clay pavers. It is designed for applications requiring a rigid or bound, void-free joint.

Is Flowpoint Premium BS 7533 compliant?

Yes. UltraScape Flowpoint Premium conforms to the strict demands of BS 7533 and is designed for paving applications requiring a rigid or bound, void-free joint.

What size joints can Flowpoint Premium be used for?

Flowpoint Premium Standard can be used for joints from 5mm to 50mm wide, while Flowpoint Premium Smooth is suitable for joints from 3mm to 50mm wide. Both variants can be used at joint depths from 20mm to 200mm.

I want a Stone Grey finish with no visible aggregate — is there a fine version available?

Yes — Porcelpoint Stone Grey is the product you need. Porcelpoint is essentially the fine, aggregate-free version of Flowpoint, available in Stone Grey and Limestone. It’s specifically formulated for porcelain and smooth-faced natural stone where no visible aggregate is required, and handles joints from 2mm to 50mm. If you want the premium Stone Grey colour but with a completely smooth, fine finish, Porcelpoint is the right choice.

How quickly does Flowpoint Premium set?

Flowpoint Premium has an initial set time of approximately 30 minutes, depending on temperature and site conditions. It can accept light foot traffic after approximately 1 hour and vehicular traffic after approximately 4 hours.

Can Flowpoint Premium be used on driveways?

Yes. Flowpoint Premium is suitable for paving applications requiring a rigid or bound, void-free joint and can be used in areas subjected to vehicular traffic. It can accept vehicular traffic after approximately 4 hours, depending on temperature.

Is Flowpoint Premium easy to use?

Yes. Flowpoint Premium is a pre-mixed dry-pack that requires only the addition of water on site. It is supplied in 25KG bags and is designed for rapid application and early trafficking.

Can it be used in the rain?

Yes — light rain is fine. Clear standing water from joints first.

Do I need to pre-seal?

Not essential, but recommended for porous or pale stones. If using a pre-sealer like Tile Rite Patio Prep, skip the water pre-soak — the sealer does the same job. If not using a sealer, thoroughly wet the paving and remove all standing water before you start.

Is it permeable?

No — it creates a rigid, non-permeable joint. Must be laid on a solid, non-permeable bed with adequate drainage fall.

What’s the shelf life?

8 months from manufacture (printed on the bag), stored sealed in cool, dry, frost-free conditions.

Can I order a pallet?

Yes — call us on 0330 122 1025 for pallet pricing with free standard delivery.


Also Available

Want to learn more?

Read ‘What is Flowpoint’ or see the full Flowpoint FAQs.

Questions about colour matching, project suitability or quantities? Get in touch or call us on 0330 122 1025 — we’re always happy to help.

  • Brand: Instarmac
  • Product Type: Paving Grout
  • SKU: TPE-FLOPREMSG
  • 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 Paving Grout — Stone Grey | 25KG Bag

The Same Trusted Flowpoint Performance — Now in a Pure, Versatile Stone Grey

Flowpoint Premium Stone Grey is one of the best rapid-set slurry paving grouts on the market — the proven Flowpoint formula now available in a rich, pure stone grey developed for projects where colour matters as much as performance. It fills joints from 5–50mm, sets in 30 minutes at 20°C, and can be open to vehicles in just 4 hours. It’s BS 7533 compliant, NBS Source registered, and built to last up to 40 years.

What makes Stone Grey special is that it’s a genuinely pure grey — not a blend of black, beige and limestone pigments that approximates grey. It’s been developed to give the cleanest, most consistent grey finish possible, which makes it particularly effective alongside contemporary grey porcelain, sandstone, limestone and most natural stone paving.

We’re a small, family-run business — I’m Cleo, the owner, with over 25 years in the construction industry, having worked with businesses such as Tarmac and Instarmac. I work alongside a team of incredibly knowledgeable and caring individuals. If you’re not sure whether Stone Grey is the right match for your stone, just give us a call — we’re happy to advise.

Find a cheaper quote for the same product? We’ll do our best to match it. Call us on 0330 122 1025.

What Contractors Say

“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.”
— Gareth Wilson, Hard Landscaping Expert & RHS Award Winner (30 years in the trade, 30 RHS show garden awards)

“Flowpoint is our go-to product when it comes to jointing all our paving. Like the rest of the materials, 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.”
— Jordan Clayton, Owner of Next Level Landscapes Ltd. (Courtesy of Instarmac Group Plc)

Which Flowpoint Colour Should I Choose?

Colour Positioning Best Suited To
Limestone Light, warm, rustic Indian sandstone, lighter natural stone, traditional/country-style paving
Stone Grey Modern, contemporary grey Mixed light/dark natural stone and contemporary paving
Yorkstone Warm, golden buff Yorkstone, buff concrete flags, warm-toned sandstone
Natural Grey Standard Flowpoint grey General paving applications
Charcoal Darker standard Flowpoint colour Dark paving, stronger contrast and contemporary schemes

Limestone works particularly well with lighter, rustic natural stone such as Indian sandstone. Stone Grey pairs with paving stones and a mix of dark and light natural stone — both descriptions are taken from Instarmac’s own product positioning.

Which Stones Does Flowpoint Premium Stone Grey Suit Best?

Stone Type Tone Match Rating
Grey Porcelain Cool / neutral grey ⭐⭐⭐⭐⭐
Sandstone (grey tones) Buff / grey / silver ⭐⭐⭐⭐⭐
Indian Stone (silver / grey) Silver / grey ⭐⭐⭐⭐⭐
Limestone (grey varieties) Grey / blue-grey ⭐⭐⭐⭐⭐
Granite Setts Grey / silver ⭐⭐⭐⭐⭐
Yorkstone Buff / grey / beige ⭐⭐⭐⭐
Slate Dark grey / blue-grey ⭐⭐⭐⭐
Clay Pavers (grey) Mid grey ⭐⭐⭐⭐⭐
Concrete Flags Mid grey ⭐⭐⭐⭐⭐

Not sure if Stone Grey is right for your project? Send us a photo or give us a call — we’re happy to help with colour matching.

Common Flowpoint Myths — Busted

Myth The Truth
Flowpoint is new and unproven Flowpoint was developed by Instarmac around 25 years ago and has been used on thousands of projects worldwide — including in New Zealand, Norway, America and Dubai.
Flowpoint 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 the slabs It doesn’t set instantly. Keep the surface damp throughout and plan around the weather — particularly in hot conditions.
Flowpoint 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.
Flowpoint causes efflorescence When applied correctly it shouldn’t. Problems usually come from an insufficiently dried bed, too much water in the mix, or pressure-washing too early.
Slabs must sit 28 days before grouting The key is that the bedding mortar is properly cured with no visible dampness. Always follow the manufacturer’s guidance.

Flowpoint Grades & Colours — Which One Do You Need?

Grade Colours Available Joint Width Best For
Flowpoint Standard Natural Grey & Charcoal 5–50mm General paving, granite setts
Flowpoint Premium Standard Stone Grey, Limestone & Yorkstone 5–50mm Premium colour palette for colour-matched joints
Flowpoint ECO Natural Grey & Charcoal 5–50mm Sustainability-specified projects, CEEQUAL/BREEAM
Flowpoint Smooth Natural Grey & Charcoal 3–50mm Porcelain, narrow joints
Flowpoint Premium Smooth Stone Grey, Limestone & Yorkstone 3–50mm Premium colours for porcelain & narrow joints
Flowpoint Fine Natural Grey & Charcoal 2–50mm Porcelain, sawn stone, no visible aggregate
Porcelpoint (Stone Grey) Stone Grey & Limestone 2–50mm Fine, aggregate-free finish in premium colours — ideal for porcelain

Key Specs

  • Unit size: 25KG bag
  • Colours: Stone Grey | Also available in Limestone & Yorkstone
  • Joint width: 5–50mm | Joint depth: 20–200mm
  • Water: 4.25L per 25KG bag | Working time: approx. 4 minutes
  • Set time: 30 minutes at 20°C
  • Foot traffic: 1 hour | Vehicles: 4 hours
  • Classification: BS 7533 | NBS Source registered
  • Exceptional bond strength | Shrinkage compensated
  • Service life: up to 40 years
  • Shelf life: 8 months from manufacture (printed on bag) | cool, dry, frost-free storage

Suitable For

Flowpoint Premium Stone Grey is ideal for all pavements where a rigid, bound, void-free joint is required — town centre pedestrian schemes, pathways and carriageways, commercial and domestic patios and driveways. Works with natural stone, concrete flags, clay pavers, granite setts and most porcelain (joints from 5mm). For joints narrower than 5mm, see Flowpoint Premium Smooth Stone Grey.

Please note: not recommended for some darker limestones (e.g. black limestone) without a temporary pre-sealer. Use Tile Rite Patio Prep on porous or sensitive stones. Call us if unsure.

How to Apply — Quick Reference

  1. Ensure joints are free from debris and all ponded water is removed.
  2. Pre-soak paving surface and joints — keep damp throughout. Or apply a temporary pre-sealer (e.g. Tile Rite Patio Prep) and skip the pre-soak.
  3. Add 4.25L of clean water per 25KG bag. Mix with a paddle mixer for 3–5 minutes until smooth and lump-free.
  4. Mix only what you can apply in approx. 4 minutes. Never store liquid mortar or add extra water.
  5. Pour over paving and force into joints using a long-handled neoprene squeegee. Keep surface damp.
  6. Squeegee off as much mortar as possible from the surface.
  7. Once the joint is firm (thumb test — no bleed), clean down thoroughly with brush and copious clean water.

Frequently Asked Questions

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 is UltraScape Flowpoint Premium?

UltraScape Flowpoint Premium is a rapid-set slurry jointing mortar with a high-fluid consistency, designed to create rigid, bound and void-free joints in paving. It has the same characteristics and properties as standard UltraScape Flowpoint, but is available in premium Limestone, Stone Grey and Yorkstone colours.

What is Flowpoint Premium used for?

Flowpoint Premium is designed for paving areas where a rigid or bound, void-free joint is required. It is suitable for natural stone, concrete flags and clay pavers, including town centre pedestrian schemes, pathways and carriageways.

What colours does UltraScape Flowpoint Premium come in?

UltraScape Flowpoint Premium is available in Limestone, Stone Grey and Yorkstone, providing premium colour options designed to complement different paving styles and colours.

What is the difference between Flowpoint Premium and standard Flowpoint?

Flowpoint Premium has the same characteristics and properties as standard UltraScape Flowpoint, but is available in premium Limestone, Stone Grey and Yorkstone colours. Standard Flowpoint is available in Natural Grey and Charcoal.

What is the difference between Flowpoint Premium Limestone and Natural Grey?

Flowpoint Premium Limestone is a lighter, warmer jointing colour designed to complement lighter and more rustic-toned natural stone, while Natural Grey is the standard Flowpoint grey option. Limestone is particularly suited to paving such as Indian sandstone and other lighter natural stone. Instarmac specifically describes Limestone as creating a “countrified aesthetic” and pairing well with lighter, rustic natural stone such as Indian sandstone.

What is the difference between Flowpoint Premium Stone Grey and Natural Grey?

Flowpoint Premium Stone Grey is a premium colour within the Flowpoint range, while Natural Grey is the standard Flowpoint colour. Stone Grey is intended to provide a modern, contemporary look and is particularly suited to paving stones and a mixture of darker and lighter natural stone.

What is the difference between Flowpoint Premium Stone Grey and Charcoal?

Stone Grey is a lighter, more contemporary grey option, while Charcoal is the darker standard Flowpoint colour. Stone Grey is designed to complement both light and dark natural stone, whereas Charcoal provides a stronger, darker contrast. Instarmac lists Stone Grey as a Premium colour and Charcoal as one of the standard Flowpoint colours.

Which Flowpoint colour is best for Indian sandstone?

Flowpoint Premium Limestone is particularly suited to Indian sandstone and lighter, rustic-toned natural stone. Instarmac describes Limestone as creating a warm, countrified aesthetic that complements these paving styles.

Which Flowpoint colour should I choose for natural stone paving?

The best Flowpoint colour depends on the paving’s colour and the finish you want. Limestone is suited to lighter, warmer and rustic natural stone, while Stone Grey provides a more modern look and complements both darker and lighter natural stone. Yorkstone suits warm buff and golden-toned stone. Natural Grey and Charcoal are the standard Flowpoint colour options.

Is Flowpoint Premium suitable for natural stone paving?

Yes. Flowpoint Premium is suitable for natural stone paving, as well as concrete flags and clay pavers. It is designed for applications requiring a rigid or bound, void-free joint.

Is Flowpoint Premium BS 7533 compliant?

Yes. UltraScape Flowpoint Premium conforms to the strict demands of BS 7533 and is designed for paving applications requiring a rigid or bound, void-free joint.

What size joints can Flowpoint Premium be used for?

Flowpoint Premium Standard can be used for joints from 5mm to 50mm wide, while Flowpoint Premium Smooth is suitable for joints from 3mm to 50mm wide. Both variants can be used at joint depths from 20mm to 200mm.

I want a Stone Grey finish with no visible aggregate — is there a fine version available?

Yes — Porcelpoint Stone Grey is the product you need. Porcelpoint is essentially the fine, aggregate-free version of Flowpoint, available in Stone Grey and Limestone. It’s specifically formulated for porcelain and smooth-faced natural stone where no visible aggregate is required, and handles joints from 2mm to 50mm. If you want the premium Stone Grey colour but with a completely smooth, fine finish, Porcelpoint is the right choice.

How quickly does Flowpoint Premium set?

Flowpoint Premium has an initial set time of approximately 30 minutes, depending on temperature and site conditions. It can accept light foot traffic after approximately 1 hour and vehicular traffic after approximately 4 hours.

Can Flowpoint Premium be used on driveways?

Yes. Flowpoint Premium is suitable for paving applications requiring a rigid or bound, void-free joint and can be used in areas subjected to vehicular traffic. It can accept vehicular traffic after approximately 4 hours, depending on temperature.

Is Flowpoint Premium easy to use?

Yes. Flowpoint Premium is a pre-mixed dry-pack that requires only the addition of water on site. It is supplied in 25KG bags and is designed for rapid application and early trafficking.

Can it be used in the rain?

Yes — light rain is fine. Clear standing water from joints first.

Do I need to pre-seal?

Not essential, but recommended for porous or pale stones. If using a pre-sealer like Tile Rite Patio Prep, skip the water pre-soak — the sealer does the same job. If not using a sealer, thoroughly wet the paving and remove all standing water before you start.

Is it permeable?

No — it creates a rigid, non-permeable joint. Must be laid on a solid, non-permeable bed with adequate drainage fall.

What’s the shelf life?

8 months from manufacture (printed on the bag), stored sealed in cool, dry, frost-free conditions.

Can I order a pallet?

Yes — call us on 0330 122 1025 for pallet pricing with free standard delivery.


Also Available

Want to learn more?

Read ‘What is Flowpoint’ or see the full Flowpoint FAQs.

Questions about colour matching, project suitability or quantities? Get in touch or call us on 0330 122 1025 — we’re always happy to help.

UltraScape Flowpoint Premium Paving Grout — Stone Grey | 25KG Bag

The Same Trusted Flowpoint Performance — Now in a Pure, Versatile Stone Grey

Flowpoint Premium Stone Grey is one of the best rapid-set slurry paving grouts on the market — the proven Flowpoint formula now available in a rich, pure stone grey developed for projects where colour matters as much as performance. It fills joints from 5–50mm, sets in 30 minutes at 20°C, and can be open to vehicles in just 4 hours. It’s BS 7533 compliant, NBS Source registered, and built to last up to 40 years.

What makes Stone Grey special is that it’s a genuinely pure grey — not a blend of black, beige and limestone pigments that approximates grey. It’s been developed to give the cleanest, most consistent grey finish possible, which makes it particularly effective alongside contemporary grey porcelain, sandstone, limestone and most natural stone paving.

We’re a small, family-run business — I’m Cleo, the owner, with over 25 years in the construction industry, having worked with businesses such as Tarmac and Instarmac. I work alongside a team of incredibly knowledgeable and caring individuals. If you’re not sure whether Stone Grey is the right match for your stone, just give us a call — we’re happy to advise.

Find a cheaper quote for the same product? We’ll do our best to match it. Call us on 0330 122 1025.

What Contractors Say

“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.”
— Gareth Wilson, Hard Landscaping Expert & RHS Award Winner (30 years in the trade, 30 RHS show garden awards)

“Flowpoint is our go-to product when it comes to jointing all our paving. Like the rest of the materials, 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.”
— Jordan Clayton, Owner of Next Level Landscapes Ltd. (Courtesy of Instarmac Group Plc)

Which Flowpoint Colour Should I Choose?

Colour Positioning Best Suited To
Limestone Light, warm, rustic Indian sandstone, lighter natural stone, traditional/country-style paving
Stone Grey Modern, contemporary grey Mixed light/dark natural stone and contemporary paving
Yorkstone Warm, golden buff Yorkstone, buff concrete flags, warm-toned sandstone
Natural Grey Standard Flowpoint grey General paving applications
Charcoal Darker standard Flowpoint colour Dark paving, stronger contrast and contemporary schemes

Limestone works particularly well with lighter, rustic natural stone such as Indian sandstone. Stone Grey pairs with paving stones and a mix of dark and light natural stone — both descriptions are taken from Instarmac’s own product positioning.

Which Stones Does Flowpoint Premium Stone Grey Suit Best?

Stone Type Tone Match Rating
Grey Porcelain Cool / neutral grey ⭐⭐⭐⭐⭐
Sandstone (grey tones) Buff / grey / silver ⭐⭐⭐⭐⭐
Indian Stone (silver / grey) Silver / grey ⭐⭐⭐⭐⭐
Limestone (grey varieties) Grey / blue-grey ⭐⭐⭐⭐⭐
Granite Setts Grey / silver ⭐⭐⭐⭐⭐
Yorkstone Buff / grey / beige ⭐⭐⭐⭐
Slate Dark grey / blue-grey ⭐⭐⭐⭐
Clay Pavers (grey) Mid grey ⭐⭐⭐⭐⭐
Concrete Flags Mid grey ⭐⭐⭐⭐⭐

Not sure if Stone Grey is right for your project? Send us a photo or give us a call — we’re happy to help with colour matching.

Common Flowpoint Myths — Busted

Myth The Truth
Flowpoint is new and unproven Flowpoint was developed by Instarmac around 25 years ago and has been used on thousands of projects worldwide — including in New Zealand, Norway, America and Dubai.
Flowpoint 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 the slabs It doesn’t set instantly. Keep the surface damp throughout and plan around the weather — particularly in hot conditions.
Flowpoint 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.
Flowpoint causes efflorescence When applied correctly it shouldn’t. Problems usually come from an insufficiently dried bed, too much water in the mix, or pressure-washing too early.
Slabs must sit 28 days before grouting The key is that the bedding mortar is properly cured with no visible dampness. Always follow the manufacturer’s guidance.

Flowpoint Grades & Colours — Which One Do You Need?

Grade Colours Available Joint Width Best For
Flowpoint Standard Natural Grey & Charcoal 5–50mm General paving, granite setts
Flowpoint Premium Standard Stone Grey, Limestone & Yorkstone 5–50mm Premium colour palette for colour-matched joints
Flowpoint ECO Natural Grey & Charcoal 5–50mm Sustainability-specified projects, CEEQUAL/BREEAM
Flowpoint Smooth Natural Grey & Charcoal 3–50mm Porcelain, narrow joints
Flowpoint Premium Smooth Stone Grey, Limestone & Yorkstone 3–50mm Premium colours for porcelain & narrow joints
Flowpoint Fine Natural Grey & Charcoal 2–50mm Porcelain, sawn stone, no visible aggregate
Porcelpoint (Stone Grey) Stone Grey & Limestone 2–50mm Fine, aggregate-free finish in premium colours — ideal for porcelain

Key Specs

  • Unit size: 25KG bag
  • Colours: Stone Grey | Also available in Limestone & Yorkstone
  • Joint width: 5–50mm | Joint depth: 20–200mm
  • Water: 4.25L per 25KG bag | Working time: approx. 4 minutes
  • Set time: 30 minutes at 20°C
  • Foot traffic: 1 hour | Vehicles: 4 hours
  • Classification: BS 7533 | NBS Source registered
  • Exceptional bond strength | Shrinkage compensated
  • Service life: up to 40 years
  • Shelf life: 8 months from manufacture (printed on bag) | cool, dry, frost-free storage

Suitable For

Flowpoint Premium Stone Grey is ideal for all pavements where a rigid, bound, void-free joint is required — town centre pedestrian schemes, pathways and carriageways, commercial and domestic patios and driveways. Works with natural stone, concrete flags, clay pavers, granite setts and most porcelain (joints from 5mm). For joints narrower than 5mm, see Flowpoint Premium Smooth Stone Grey.

Please note: not recommended for some darker limestones (e.g. black limestone) without a temporary pre-sealer. Use Tile Rite Patio Prep on porous or sensitive stones. Call us if unsure.

How to Apply — Quick Reference

  1. Ensure joints are free from debris and all ponded water is removed.
  2. Pre-soak paving surface and joints — keep damp throughout. Or apply a temporary pre-sealer (e.g. Tile Rite Patio Prep) and skip the pre-soak.
  3. Add 4.25L of clean water per 25KG bag. Mix with a paddle mixer for 3–5 minutes until smooth and lump-free.
  4. Mix only what you can apply in approx. 4 minutes. Never store liquid mortar or add extra water.
  5. Pour over paving and force into joints using a long-handled neoprene squeegee. Keep surface damp.
  6. Squeegee off as much mortar as possible from the surface.
  7. Once the joint is firm (thumb test — no bleed), clean down thoroughly with brush and copious clean water.

Frequently Asked Questions

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 is UltraScape Flowpoint Premium?

UltraScape Flowpoint Premium is a rapid-set slurry jointing mortar with a high-fluid consistency, designed to create rigid, bound and void-free joints in paving. It has the same characteristics and properties as standard UltraScape Flowpoint, but is available in premium Limestone, Stone Grey and Yorkstone colours.

What is Flowpoint Premium used for?

Flowpoint Premium is designed for paving areas where a rigid or bound, void-free joint is required. It is suitable for natural stone, concrete flags and clay pavers, including town centre pedestrian schemes, pathways and carriageways.

What colours does UltraScape Flowpoint Premium come in?

UltraScape Flowpoint Premium is available in Limestone, Stone Grey and Yorkstone, providing premium colour options designed to complement different paving styles and colours.

What is the difference between Flowpoint Premium and standard Flowpoint?

Flowpoint Premium has the same characteristics and properties as standard UltraScape Flowpoint, but is available in premium Limestone, Stone Grey and Yorkstone colours. Standard Flowpoint is available in Natural Grey and Charcoal.

What is the difference between Flowpoint Premium Limestone and Natural Grey?

Flowpoint Premium Limestone is a lighter, warmer jointing colour designed to complement lighter and more rustic-toned natural stone, while Natural Grey is the standard Flowpoint grey option. Limestone is particularly suited to paving such as Indian sandstone and other lighter natural stone. Instarmac specifically describes Limestone as creating a “countrified aesthetic” and pairing well with lighter, rustic natural stone such as Indian sandstone.

What is the difference between Flowpoint Premium Stone Grey and Natural Grey?

Flowpoint Premium Stone Grey is a premium colour within the Flowpoint range, while Natural Grey is the standard Flowpoint colour. Stone Grey is intended to provide a modern, contemporary look and is particularly suited to paving stones and a mixture of darker and lighter natural stone.

What is the difference between Flowpoint Premium Stone Grey and Charcoal?

Stone Grey is a lighter, more contemporary grey option, while Charcoal is the darker standard Flowpoint colour. Stone Grey is designed to complement both light and dark natural stone, whereas Charcoal provides a stronger, darker contrast. Instarmac lists Stone Grey as a Premium colour and Charcoal as one of the standard Flowpoint colours.

Which Flowpoint colour is best for Indian sandstone?

Flowpoint Premium Limestone is particularly suited to Indian sandstone and lighter, rustic-toned natural stone. Instarmac describes Limestone as creating a warm, countrified aesthetic that complements these paving styles.

Which Flowpoint colour should I choose for natural stone paving?

The best Flowpoint colour depends on the paving’s colour and the finish you want. Limestone is suited to lighter, warmer and rustic natural stone, while Stone Grey provides a more modern look and complements both darker and lighter natural stone. Yorkstone suits warm buff and golden-toned stone. Natural Grey and Charcoal are the standard Flowpoint colour options.

Is Flowpoint Premium suitable for natural stone paving?

Yes. Flowpoint Premium is suitable for natural stone paving, as well as concrete flags and clay pavers. It is designed for applications requiring a rigid or bound, void-free joint.

Is Flowpoint Premium BS 7533 compliant?

Yes. UltraScape Flowpoint Premium conforms to the strict demands of BS 7533 and is designed for paving applications requiring a rigid or bound, void-free joint.

What size joints can Flowpoint Premium be used for?

Flowpoint Premium Standard can be used for joints from 5mm to 50mm wide, while Flowpoint Premium Smooth is suitable for joints from 3mm to 50mm wide. Both variants can be used at joint depths from 20mm to 200mm.

I want a Stone Grey finish with no visible aggregate — is there a fine version available?

Yes — Porcelpoint Stone Grey is the product you need. Porcelpoint is essentially the fine, aggregate-free version of Flowpoint, available in Stone Grey and Limestone. It’s specifically formulated for porcelain and smooth-faced natural stone where no visible aggregate is required, and handles joints from 2mm to 50mm. If you want the premium Stone Grey colour but with a completely smooth, fine finish, Porcelpoint is the right choice.

How quickly does Flowpoint Premium set?

Flowpoint Premium has an initial set time of approximately 30 minutes, depending on temperature and site conditions. It can accept light foot traffic after approximately 1 hour and vehicular traffic after approximately 4 hours.

Can Flowpoint Premium be used on driveways?

Yes. Flowpoint Premium is suitable for paving applications requiring a rigid or bound, void-free joint and can be used in areas subjected to vehicular traffic. It can accept vehicular traffic after approximately 4 hours, depending on temperature.

Is Flowpoint Premium easy to use?

Yes. Flowpoint Premium is a pre-mixed dry-pack that requires only the addition of water on site. It is supplied in 25KG bags and is designed for rapid application and early trafficking.

Can it be used in the rain?

Yes — light rain is fine. Clear standing water from joints first.

Do I need to pre-seal?

Not essential, but recommended for porous or pale stones. If using a pre-sealer like Tile Rite Patio Prep, skip the water pre-soak — the sealer does the same job. If not using a sealer, thoroughly wet the paving and remove all standing water before you start.

Is it permeable?

No — it creates a rigid, non-permeable joint. Must be laid on a solid, non-permeable bed with adequate drainage fall.

What’s the shelf life?

8 months from manufacture (printed on the bag), stored sealed in cool, dry, frost-free conditions.

Can I order a pallet?

Yes — call us on 0330 122 1025 for pallet pricing with free standard delivery.


Also Available

Want to learn more?

Read ‘What is Flowpoint’ or see the full Flowpoint FAQs.

Questions about colour matching, project suitability or quantities? Get in touch or call us on 0330 122 1025 — we’re always happy to help.

Flowpoint Premium Stone Grey — Technical Information

  • Classification: BS 7533 | NBS Source registered
  • Joint width: 5–50mm | Joint depth: 20–200mm
  • Water ratio: 4.25 litres per 25KG bag
  • Working time: approx. 4 minutes — mix one bag at a time
  • Set time: 30 minutes at 20°C (cool temperatures retard; warm temperatures accelerate)
  • Open to foot traffic: 1 hour | Open to vehicles: 4 hours
  • Exceptional bond strength | Shrinkage compensated | Non-permeable
  • Service life: up to 40 years
  • Shelf life: 8 months from manufacture (printed on bag), sealed, cool/dry/frost-free
  • Unit size: 25KG bag | Colours: Stone Grey, Limestone & Yorkstone
  • Please note: not recommended for darker limestones (e.g. black limestone) without a temporary pre-sealer. Contact us for advice.

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 Stone Grey

Two approaches — with or without a temporary pre-sealer:

Without a pre-sealer:

  1. Clear joints of debris and remove all standing water.
  2. Thoroughly pre-soak the paving surface and joints. Then remove all ponded water — a leaf blower works well. The surface should be damp, not waterlogged.
  3. Keep the surface moist throughout application with a light water spray.

With a temporary pre-sealer (e.g. Tile Rite Patio Prep):

  1. Apply sealer in advance and allow to dry as per product instructions.
  2. Do not pre-soak — the sealer acts as the protective barrier. Remove standing water from joints before starting.

Mixing

  1. Add 4.25 litres of clean water per 25KG bag. Mix with a paddle mixer for 3–5 minutes until smooth and lump-free.
  2. Only mix what you can apply in approx. 4 minutes. Never store liquid mortar or add extra water once mixed.

Application

  1. Pour mixed grout onto the paving and force into joints using a long-handled neoprene squeegee.
  2. Work methodically across the surface, topping up any joints where mortar has slumped.
  3. Squeegee off as much excess mortar as possible as you go.
  4. Once the joint is firm (thumb test — firm, no bleed), clean down thoroughly with brush and copious clean water. No mortar to remain on surface.

Trafficking: foot traffic after 1 hour | vehicles after 4 hours. Cool temperatures retard set; warm temperatures accelerate it. Do not apply below 3°C or in direct sunlight.

Flowpoint Premium Paving Grout from Ultrascape is a rapid-set, cement-based grout engineered for natural stone, porcelain slabs, concrete flags, and granite setts. Its highly flowable consistency ensures joints are completely filled, delivering a strong, durable finish with a lifespan of 30–40 years. Fully BS 7533 compliant, Flowpoint is suitable for both domestic and commercial paving projects. It is available in specialist grades—Standard, Smooth, and Porcelpoint—tailored to different joint widths, depths, and surface finishes. For optimal results, pre-seal paving slabs with a temporary pre-grout sealer to reduce the risk of staining and efflorescence. Mix Flowpoint Premium to a smooth, pourable consistency and apply while surfaces are damp using a squeegee. Once the grout is touch-dry (typically 15–30 minutes), clean the surface using a Berta Sponge Machine or Pedalo. Flowpoint accommodates joint widths from 2–50 mm and depths of 20–200 mm, providing a long-lasting, stain-resistant, professional finish ideal for patios, driveways, and commercial paving schemes.