ProJoint RapidFlow Brush-in Porcelain Grout – BASALT, 12.5kg (RAPIDFLOWBA)

ProJoint RapidFlow Basalt 12.5kg – Dark Grey Joint Filler for Sleek Outdoor Projects

MPN: RAPIDFLOWBA

Barcode: 5060763590472

The Basalt shade offers a deeper, contemporary finish suited to darker paving schemes. Its blend is specially formulated for porcelain tiles but works just as well with stone or concrete. With no mixing or complex setup required, it’s a straightforward choice for both professionals and homeowners tackling outdoor joints.

Who This Product Is For

This product is for professionals and homeowners working on outdoor paving projects. It suits jobs involving porcelain tiles, stone, or concrete paving with joints of 3mm or larger.

It is appropriate for patios, garden paths, edging features, raised seating areas, or statement paving sections in contemporary garden designs.

Key Features

• Basalt Colour: A deep, natural-looking grey that pairs well with modern paving.
• Cement-Free Resin Composition: Minimises the risk of staining and supports clean joint lines.
• Air-Drying Binder: No curing agents needed—sets naturally once applied.
• Designed for 3mm+ Joints: Works across a variety of gap sizes without issue.
• Weed and Frost Resistance: Helps protect outdoor surfaces from common seasonal damage.
• Compatible with Permeable Bedding: Supports drainage and long-term performance.

Key Benefits

• Reduces application time with a ready-to-use format.
• Helps preserve the visual quality of darker pavers.
• Suitable for both patios and garden paths with foot traffic.
• Minimises water build-up thanks to its permeable characteristics.

Practical Applications

The basalt tone suits contemporary garden designs, especially those using dark porcelain, granite-effect slabs or concrete with cooler undertones. It’s suited for edging features, raised seating areas or statement paving sections.

How This Fits Into a Typical Job

This joint filler is used after paving is laid, during the joint filling stage of outdoor paving installations. It is applied to clean, saturated joints, compacted into place, then rinsed to remove excess.

It forms part of the finishing process, working with permeable bedding systems to support drainage and long-term performance.

Not Suitable For

• Joints smaller than 3mm
• Application in heavy rain or freezing temperatures
• Non-permeable bedding systems

How to Use

1. Saturate the Surface: Drench the area before starting to stop the compound from sticking.
2. Spread the Product: Pour out the grout and sweep it into gaps using a brush.
3. Push In Firmly: Compact the grout well into the joints to prevent air pockets.
4. Light Rinse: Use gentle water to remove excess from the slab surface.
5. Leave to Harden: Wait a full 24 hours before walking on the area, longer in cooler weather.

Storage and Maintenance Tips

• Add a shallow layer of water back into the tub to store leftovers.
• Keep the container sealed when not in use.
• Avoid application in heavy rain or freezing temperatures.

Order the Basalt grout from Path and Patio today for a sleek finish that ties your darker paving projects together seamlessly.

• Specification

  Weight	12.5 kg
  Colour	Basalt
  System	Resin based, premixed resin jointing compound for porcelain paving
  Storage	Store in a cool, dry, and frost free environment at temperatures between 5°C and 30°C
  Shelf Life	12 months from date of manufacture
  Walk on Curing Time	12 hours in dry ambient conditions
  Full Strength	28 days
  Sub Base Requirement	Full solid bed with a permeable bedding mortar or recommended 1:5 mix of sand and cement

• Product FAQs

  Q: Does the basalt colour contrast well with dark stone?
  A: It’s perfect for creating defined edges on black or charcoal paving.
  Q: How weather-resistant is this grout?
  A: Once cured, it’s frost-proof and built for British outdoor conditions.
  Q: What’s the best way to clean tools after use?
  A: Rinse them thoroughly with water before the compound sets.
  Q: Is this grout suitable for DIY projects?
  A: Absolutely – it’s pre-mixed and simple to brush into joints.
  Q: Can it be used on driveways?
  A: It’s intended for pedestrian use, not for areas with vehicle traffic.
  Q: Will this product also work with concrete paving?
  A: Yes, it also performs well with concrete slabs and flags.

• Downloads

  Tech Data Sheet for Projoint RapidFlow Porcelain Brush-in Grout