Emseal Colorseal

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COLORSEAL by Emseal is a pre-compressed, primary plus secondary seal ideally suited to curtain wall and metal cladding systems, as well as concrete, brick, stone, precast, EIFS, etc.

Microsphere-modified acrylic-impregnated foam sealant, factory pre-coated with high-grade silicone; it is watertight, odourless, clean handling, UV stable, non-staining, low temperature flexible and high-temperature stable. COLORSEAL combines a factory-applied and cured silicone bellows with a microsphere-modified acrylic-impregnated expanding foam sealant backing.


  • Primary and built-in secondary seal
  • Watertight
  • Airtight
  • Insulates
  • Sound attenuating
  • ABAA Compliant
  • Resists hurricane force wind & water
  • Tensionless silicone bellows
  • Rapid installation--new or retrofit
  • Non-invasive anchoring
  • Aesthetically and practically versatile
  • Easily handles changes in plane and direction
  • Easily handles curved expansion joints
  • 100% free of wax compounds (Why does this matter?)


  • Curtainwall
  • Masonry
  • Precast
  • Metal Panel
  • Natural Stone
  • EIFS

Standard Sizes: 12mm - 200mm
Note: Sizes under 40mm are manufactured with a single bellows. Larger sizes incorporate multiple bellows.

Movement Capability

  • Total 50% (+/-25%) of nominal supplied size
    (For 100% movement see: SEISMIC COLORSEAL

Colours: 26 Standard colours and custom colours available (contact Allco to discuss further) 

COLORSEAL features EMSEAL’s microsphere-modified acrylic impregnation, infused into a cellular foam base material and is coated with a high-grade silicone coating that has been tested for durability under continuous UV, water and air pressure differential exposures typically experienced by modern structures.

COLORSEAL features non-invasive anchoring which means you are not drilling and screwing into sensitive substrates. This eliminates the risk of spalls and enables installation into inside corners that are impossible to seal with screw-anchored strip-seals.

Unlike imitations that use closed-cell foam backings and that must be forced into compression in the field, COLORSEAL is supplied pre-compressed to smaller than the joint size.  This means that neither the bellows nor the corner bead, nor the foam backing are in tension either during the full extent of movement capability nor as a result of compression set typical in closed-cell foams.

Performance Limitations

  • Substrates must be parallel, plumb and capable of resisting approx. 2.5 psi backpressure from the foam.
  • An R-value of approximately 1.8 per inch of depth imparts thermal insulation at structural joint-gaps where thermal loss through strip-seals is often significant
  • Sound Attenuation is also a feature of COLORSEAL. With a 63.5mm (2 1/2") standard depth product installed in one side of a STC 72 wall, COLORSEAL had a STC 56 rating and in an OITC 61 wall it had a 53 OITC rating. When installed from both sides of a STC 72 wall it received the maximum of STC 72 equaling the sound suppression of the wall and in an OITC 61 wall it received a OITC 60 rating.

Colorseal - Tech Data


Colorseal - Install Data


The Emseal Checklist