Silicone-coated, precompressed, primary seal in structural, high-movement, joints in virtually any substrate.

For vertical-plane joint-gaps from 12mm to 300m.
Total 100% movement capability (±50% of nominal supplied size).
Twelve standard colours
Non-invasive anchoring, thermally insulating, aesthetically and practically versatile, sound attenuating.

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SEISMIC COLORSEAL is ideally suited for ensuring watertightness in vertical and horizontal structural, seismic, and abutment joints in walls of precast concrete, brick, curtain-wall, stone etc.

New!  NOW also available SEISMIC COLORSEAL-DS (Double Sided) for shallow-substrate applications.

SEISMIC COLORSEAL is the latest in an evolution of precompressed hybrid sealant technology. Developed by EMSEAL in the early 1980's, precompressed hybrid sealants combine the best of liquid and preformed sealant features while eliminating the shortcomings of each. SEISMIC COLORSEAL has an unmatched 20+ year track record of performance. Evolved from EMSEAL's COLORSEAL, SEISMIC COLORSEAL combines a factory-applied and cured silicone bellows with an impregnated expanding foam backing. In contrast to COLORSEAL, the backing of SEISMIC COLORSEAL contains less foam, thereby freeing up volume for greater movement without stressing its components. The inherent secondary seal in the foam backing (as in the original COLORSEAL) is traded for the doubling of movement capacity and the silicone bellows does the waterproofing and acts as the weathering surface.

Why silicone for the bellows? Polyurethane sealant options have been proved to suffer dramatic modulus and other physical properties changes at low temperature and over time.  The silicone used on SEISMIC COLORSEAL remains pliant, UV stable and watertight over time and temperature gradient.

The bellows holds the key to SEISMIC COLORSEAL's unique performance. Alternatives comprised of a pre-cured block of silicone over a un-impregnated foam backing must still be caulked to the substrate with large applications of sealant. This flanking sealant still suffers the same shortcoming of conventionally installed liquid sealant, namely adhesive in tension during joint opening.

SEISMIC 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.

The expanding foam backing is acrylic-impregnated cellular foam combined in some sizes with laminations of closed-cell foam. The impregnated foam contains no wax or asphalt compounds

Backpressure from the stored strain energy of the precompressed foam secures the system to the substrate and ensures that the silicone bellows is never under tension from the effects of joint movement.

SEISMIC COLORSEAL has an R-value of approximately 3.28 per inch of depth which imparts thermal insulation at structural joint-gaps where thermal loss through strip-seals is often significant.

Unlike imitations that use closed-cell foam backings and that must be forced into compression in the field, SEISMIC 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.

SEISMIC COLORSEAL has a mounting adhesive on one face. After removal from its packaging, the material is inserted into the joint and adhered to one side. It then expands to fill the joint. The combination of the active backpressure and the pressure-sensitive nature of the acrylic impregnation ensures the attachment of the foam to the other substrate.

Standard sizes from 12mm to 300mm
Sizes up to 20 mm have single convex facing.
Sizes from 25 mm and bigger have multiple bellows coating.

 

100% free of wax or asphalt compounds (Why does this matter?)

 

 SEISMIC COLORSEAL Technical Data