COLOURSEAL -  a silicone faced pre-compressed expanding foam tape joint sealant 

Replacement for traditional wet sealants


Colourseal - joint sealant

Colourseal - Mayfair


COLOURSEAL Applications
  • Joints in concrete and brickwork

  • Joints subject to thermal or differential movement

  • Weather tight seal

  • Pre-cast concrete panels

  • Vertical joints ( for horizontal joints, refer to Colourseal 'H' data sheet)

  • Joints subject to high movement

  • COLOURSEAL has a movement capability of up to +/- 50% of the mean joint size.

Product Information   Advantages
  • COLOURSEAL combines a factory-applied low-modulus silicone, acrylic impregnated expanding foam sealant and closed-cell (EVA) foam into a unified binary sealant system 

  • The expanding foam laminations are Flowseal - an open-cell polyurethane foam impregnated with a water-based, stabilised, polymer-modified acrylic

  • The silicone external and colour weather facing is factory-applied to the foam while it is partially pre-compressed. The silicone is then cured and when finally compressed, a bellows is formed in the coating. The bellows virtually eliminates tensile stresses at the silicone/substrate interface 

  • Puncturing of the silicone facing does not affect the seal integrity 

  • COLOURSEAL is supplied shrink-wrapped and pre-compressed in 2 metre lengths 

  • Choice of 4 standard colours (black, grey, white, & brick), with further choice of 7 non-standard colours 

  • Suitable for joint sizes 20mm - 150mm (others available) 

  • High movement capabilities: +/- 50% of nominal joint width 
  • Joint movement capability of up to +/-50% of nominal joint width

  • Features the UV resistance, durability and the impermeability of silicone

  • Virtually eliminates tensile stresses at bond line and adverse effects of movement occurring before field applied silicone cures

  • Reduced installation, labour and material charges

  • Less reliant on meticulous substrate preparation

  • Seal integrity maintained if silicone is punctured

  • Easy to install


COLOURSEAL SIZING Material size shown can be compressed further to aid installation

Other sizes available subject to confirmation of application

Joint width 
(& compressed material size)
Joint width 
(& compressed material size)
Joint width 
(& compressed material size)
Joint width 
(& compressed material size)
12mm 50mm 105mm 150mm
15mm 55mm 115mm 165mm
20mm 60mm 120mm 175mm
25mm 70mm 125mm 190mm
30mm 75mm 135mm 200mm
40mm 90mm 140mm  
45mm 100mm 145mm  
Colourseal 'S' movement rating is +/-50% (of compressed material size)  


Standard Colours

Colourseal joint sealant  - Standard Colours


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