UltraScape Flowpoint Rapid Setting External Paving Grout – Natural Grey

“Rapid-Set Paving Grout for Stone, Granite Setts & Impermeable Beds”

UltraScape Flowpoint Natural Grey is a flowable paving and patio grout ideal for filling the joints between all types of paving slabs & setts. Perfect for use on granite setts, sandstone, traditional limestone, porcelain, Indian Stone, Yorkstone and concrete slabs. The patio pointing mix comes in a handy 25kg bag, is simple to mix with water and a large bucket, is fast to apply and is rapid setting meaning your patio is pointed far quicker than using traditional methods of pointing and jointing slabs. The grout is simply mixed and poured over the paving slabs, then washed off after an initial 15 minute setting time to produce robust joints which stop weeds in their tracks! 

Ultrascape Flowpoint exceeds all the requirements of the latest British Standard BS 7533. Flowpoint has been widely used over the last 20 years for a variety of projects including public realm, landscaping, streetscape projects and many domestic patios and paved areas. UltraScape Flowpoint is synonymous with fast application, cost effective and robust jointing – and is manufactured to last up to 40 years!

Trusted by major contractors worldwide, Ultrascape Flowpoint has been used on prestigious public realm, corporate and domestic projects such as Cardiff Castle, Birmingham Bull Ring, the Citadel of Namur in Belgium, University of Canterbury in New Zealand, Dubai Mall Zabeel. Flowpoint is used by councils, paving contractors, landscapers and domestic customers for its quality, robust nature and cost effectiveness. 

JORDAN CLAYTON
“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.”

Owner of Next Level Landscapes Ltd. (Courtesy of Instarmac Group Plc) 

Use Flowpoint grout with: 

• Granite setts (usage around 1 bag per 1.5 Square Mtrs on average needed) 
• Sandstone
• Limestone (not dark limestone) 
• Porcelain
• Indian Stone
• Yorkstone
• Concrete slabs

(Not ideal with some darker limestone such as black limestone, can lead to slight oxidisation).

What is Flowpoint Paving Grout?

Flowpoint is a fast-setting, cement-based paving grout for outdoor use on patios, terraces, pavements, and paving slabs. It’s applied using a simple slurry method—just mix with water for 3–5 minutes, pour, spread with a neoprene squeegee, and clean off.

Once set, Flowpoint forms a durable, non-permeable finish that blocks weeds and water. It sets in 30 minutes, is walkable in an hour, and ready for vehicle traffic in 4 hours (depending on conditions). Always apply on a solid, non-permeable bed.

How do I use Flowpoint?

This handy reel on Facebook will show you how to lay Flowpoint, and give you some handy hints and tips. Click here for a video on how to lay Flowpoint Paving Grout.

What are the key things I need to know about Flowpoint Paving Grout?

• Suitable for natural stone, concrete, and porcelain
• Joint widths: from 2mm (grade-dependent)
• Joint depths: 20mm to 200mm
• Lasts up to 40 years without re-grouting
• BS 7533 compliant
• Shelf life: 8 months (unopened)
• Weather Tip: Avoid hot, sunny days—grout will set too fast. Apply during cooler parts of the day.

Did you know that Flowpoint is now available in 8 Grades, and 4 colours? 

• Flowpoint Standard – Natural Grey & Charcoal (5-50mm joint width | 20 -200mm deep)
• Flowpoint Premium Standard – Stone Grey & Limestone (5-50mm joint width | 20 -200mm deep)
• Flowpoint ECO – Natural Grey & Charcoal (5-50mm joint width | 20 -200mm deep)
• Flowpoint Premium ECO – Stone Grey & Limestone (5-50mm joint width | 20 -200mm deep)
• Flowpoint Smooth – Natural Grey & Charcoal (3-50mm joint width | 20 -200mm deep)
• Flowpoint Premium Smooth – Stone Grey & Limestone (3-50mm joint width | 20 -200mm deep)
• Flowpoint Fine – Natural Grey & Charcoal (2-50mm joint width | 20 -200mm deep)
• Porcelpoint (for porcelain) – Stone Grey & Limestone (2-50mm joint width | 20 -200mm deep)
  

How long does Flowpoint Grout last?

When applied correctly, Flowpoint slurry paving grout can last beyond 30-40 years without the need to grout the paving again.

How long does Flowpoint Grout take to cure & set?

Flowpoint rapid-setting paving grout typically takes about 30 minutes to set and can be walked on within one hour under normal conditions. However, the full curing time depends on several factors, including temperature, humidity, and the specific formulation used. In general, at 20 degrees Flowpoint reaches its full strength within 24 to 48 hours, though it may continue to gain additional strength over several days. In colder (click link for our article on grouting in colder temperatures) or wetter conditions, curing may take longer, while warmer temperatures can accelerate the process (click the link for more info). Proper curing ensures durability and long-term performance, making it crucial to follow manufacturer guidelines for optimal results.

Is Flowpoint Grout permeable?

No, Flowpoint is non-permeable, cementitious-based grout – meaning it doesn’t allow water to pass through it once set.

How Much Flowpoint Grout Do I Need for My Patio?

When planning a patio project, knowing how much Flowpoint paving grout you’ll need is essential. UltraScape Flowpoint is a rapid set, flowable paving grout designed for patios and all types of paving slabs including, natural stone, concrete slabs, and granite setts.

Easy to mix with water, Flowpoint has an initial set of 15-30 minutes (dept on temp), provides up to 40 years of durability, and meets the vital British Standard – BS 7533. Its non-permeable finish helps prevent weeds, works even in light rain, and ensures a professional, long-lasting patio finish. Available in Natural Grey, Charcoal and new Premium in Stone Grey & Limestone. 

Flowpoint Approximate Coverage Guide (per 25kg bag)

• Natural Stone Mixed Packs: ≈ 12–20m²
• Granite Setts: ≈ 1.5–2m²
  

👉 For the most accurate calculation, use The Paving Expert’s Flowpoint Calculator on the product page to estimate coverage for your exact paving size and joint width.

Can you use Flowpoint Grout in the rain?

Yes, you can use Flowpoint in light rain but ensure the paving joints don’t fill up with rainwater. Applying Flowpoint on a damp day can actually be beneficial, because it can stop the wet slurry from setting too quickly.

Will Flowpoint Grout Stain My Paving?

Flowpoint Paving Grout is designed to be stain-free and resistant to efflorescence—provided it’s applied correctly and in line with the manufacturer’s instructions.

Staining is not a fault of the product, but typically a result of installation errors. Common causes include:

• Skipping a paving primer like Ultrascape Pro-Prime
• Not lightly misting the slabs with water during application
  
• Over-watering the grout mix, or leaving water sitting on the surface or in the joints
  

These issues can lead to grout haze, surface staining, or uneven color patches—which can be very difficult to clean once set.

How to Avoid Staining with Flowpoint

Keep your paving looking its best with these simple best practices:

1. Prime before you grout

Use a high-quality primer such as Ultrascape Pro-Prime to help the paving bond to the mortar bed and block any moisture or stains from migrating through.

2. Keep slabs misted

Throughout the grouting process, lightly mist your slabs using a garden hose with a rose head or a spray bottle. This prevents premature drying and surface residue.

3. Watch your water

Avoid adding too much water to the grout mix, and don’t let water collect on the surface or in the joints. Too much water can result in cracking, staining, and a patchy finish.

4. Use the right tools

Apply the grout with a neoprene squeegee to push the material deep into the joints while clearing excess from the slab surface.

Final Word

✅ Flowpoint doesn’t cause staining when used correctly.
Following proper installation steps will ensure a clean, consistent finish—free from haze, residue, or discolouration.

What is the Shelf Life for Flowpoint Slurry Paving Grout?

Shelf life from date of manufacture printed on the bag, unopened in the above conditions, for sealed bags is 8 months. Please note: the use of this product after the end of the declared storage period may increase the risk of an allergic reaction.