• ProJoint™ RapidFlow™  

    The Brush-In Porcelain Paving Grout

    The quick and easy solution to filling joints between porcelain paving. Simple to use, ProJoint™ RapidFlow™ allows an untrained hand to consistently deliver perfect joints every time - precisely formulated for porcelain paving but equally suitable for natural stone paving.

    It delivers a weed free, frost resistant joint, without staining the paving - saving you time and money. 

    ProJoint™ RapidFlow™ is available in five colours: neutral (buff), light grey, mid grey, basalt and black.

KEY FACTS:

  • Precisely formulated for Porcelain Paving, Natural Stone and Concrete 
  • Professional strength and suitable for joint widths of 3mm upwards
  • Cement free and non-hazardous
  • Suitable for pedestrian traffic: ideal for paths and patios
  • Pre-mixed, ready to use and ideal for DIY use
  • Also Suitable for natural stone paving.

Video application instructions

Technical data sheet


Nexus Pro Systems Ltd The techical information given on our product is based on our product is based on data obtained by our own research and is considered accurate. However no liability is accepted for any loss or damage arising directly or indirectly from the use of our products or from the information given in publications. Prospective users should therefore satisfy themselves by appropriate trials that the product is suitable for the intended use. E&OE 04/2022 samples are available to view at your local stockist.

FAQ's

  1. How long does RapidFlow take to cure?
    RapidFlow typically cures enough for foot traffic in about 24 hours. Curing times can vary depending on the weather. Colder and wetter conditions can delay the curing speed significantly.
  2. What is the best way to maintain my joints?
    Keeping your paving joints clean is simple! Sweep the area regularly to remove dirt, leaves, and debris. This helps stop weeds from taking root. For a deeper clean to remove algae and dirt, our ProJoint Black Spot and Algae Remover blasts through it.
  3. Can it be used on natural stone tiles, as well as porcelain?
    Yes! RapidFlow works brilliantly with both porcelain and natural stone tiles, giving you versatility across your paving projects.
  4. What weather conditions can I apply RapidFlow in?
    Light rain? No problem. Just avoid heavy rain or freezing temperatures, as these can damage the curing process. 
  5. Can I open the tub and re-use it on a later date?
    Once opened, the air will start the curing process.  To stop this, you put excess material back in the tub and submerge it in water, this will cut out the oxygen giving you up to a month extra of usage. 
  6. Where is RapidFlow used?
    RapidFlow is perfect for porcelain, natural stone and concrete patios, paths, and other areas with foot traffic only.
  7. Is RapidFlow permeable?
    Yes, the primary benefit of permeable resin jointing compounds is their ability to let water pass through, reducing surface water and preventing pooling. 
  8. Why should the bedding mortar be permeable?
    RapidFlow cured when it dries out, because of this, water/rain must have a route of escape.  Furthermore, a permeable sub-base allows water collecting in the joints to drain freely, stopping it from building up within the joints and become stagnant - this stagnant water overtime can soften the binder and encourage algae growth.
  9. When you say permeable bedding mix, what does this mean?
    A 5:1 ratio of sand and cement or above is classed as permeable.  Or using a specific permeable bedding mortar is also acceptable. 
  10. Can you pressure wash RapidFlow?
    Yes, but only after it’s fully cured ( 30 days) Use a fan nozzle and keep the pressure washer at a safe distance.
  11. What’s the difference between RapidFlow resin and epoxy?
    RapidFlow is an air-cure binder, while epoxy compounds like ProJoint TITAN/V400 offer higher durability and strength with a different application method. 

Coverage Table (12.5kg tub)

Joint Size
600x600mm slabs
600x900mm slabs
600x1200mm slabs
3 x 20mm
34.8m2
41.8m2
46.5m2
5 x 20mm
20.8m2
25m2
27.8m2
7 x 20mm
14.9m2
17.9m2
20m2


Click here for Tub calculator
NOTE:  as sand is a natural product, some minimal colour variance may occur.  As screen colours can vary, the product colours shown above are representative only - for colour selection,
  • How many RapidFlow tubs do you need for your project?

  • CALCULATE HERE

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