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The following guide specification is presented here is an easy-to-copy-and-paste format.

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***COLORSEAL by EMSEAL GUIDE SPECIFICATION***

Application:  For Watertight Exterior Wall Joints and Interior wall Joints
Basis of Design:  COLORSEAL by EMSEAL Joint Systems.

USA & INTERNATIONAL:  EMSEAL JOINT SYSTEMS, LTD, 23 Bridle Lane, Suite 3, Westborough, MA 01581-2603, Toll Free: 800-526-8365 or PH: 508-836-0280, FX: 508-836-0281, www.emseal.com.

CANADA:  EMSEAL CORPORATION, 120 Carrier Drive, Toronto, Ontario, Canada, M9W 5R1 Toll Free: 800-526-8365 or PH: 416-740-2090, FX: 416-740-0233, www.emseal.com.

Basis of Design: COLORSEAL by EMSEAL for watertight exterior joints in vertical-plane walls (above-grade).  Typical locations include, but are not limited to the following: applications in window perimeters, other façade penetrations such as doors, store fronts, vents, HVAC units etc, panel to panel joints, curtain walls, control joints, between dissimilar materials, high-movement and seismic structural expansion joints, acoustic partition barriers, and new-to-existing connections.

Preformed sealant shall be silicone pre-coated, preformed, pre-compressed, self-expanding, sealant system.  Expanding foam to be cellular foam impregnated with a water-based, non-drying, polymer-modified 100% acrylic dispersion. Uncompressed impregnation density not to exceed 150 kg per cubic meter. Seal shall combine factory-applied, low-modulus silicone and a backing of acrylic-impregnated expanding foam into a unified hybrid sealant system. Silicone must be proved to have been tested for hardness according to ASTM D2240 (Shore-A hardness not to exceed 25).  Product must be proved to have been tested to exceed the requirements of curtain wall performance tests ASTM E-330, E-283, and E-331.  Product must be proved to have been tested to Xenon Arc Weatherometer testing which includes Intentional Damage to Primary Surface with no performance change over 2000 hours according to ASTM G26-77.  Product movement capability to be minimum +25% and -25% (total 50%) of nominal material size.

Silicone external color facing to be factory-applied to the foam while it is partially pre-compressed to a width greater than maximum joint extension and cured before final compression. When compressed to final supplied dimension, a bellows with distinct and uniform folds to handle movement must be created in the silicone coating. Silicone coating to be available in a range of not less than 12 colors for coordination with typical building materials.

Sealant must be supplied precompressed to less than the joint size, packaged in shrink-wrapped lengths (sticks) with a mounting adhesive on one face. End to end joins of consecutive lengths of material to be butted and joined bellows surfaces to be lightly coated with silicone.  To obtain identical color sealant, use sealant supplied by manufacturer. Depth of seal as recommended by manufacturer.

Sealing against the substrate to be achieved through a combination of the pressure-sensitive adhesive impregnation, and the backpressure of the expanding foam, as well as through the addition, by the contractor in the field, of a corner bead of silicone supplied by the sealant manufacturer.

All substitute candidates to be certified in writing to be free in composition of any waxes or asphalts, wax compounds or asphalt compounds.  All substitute candidates shall be certified in writing to be: a) capable of withstanding 150°F (65°C) for 3 hours while compressed down to the minimum of movement capability dimension of the basis of design product (-25% of nominal material size) without evidence of any bleeding of impregnation medium from the material; and b) that the same material after the heat stability test will self-expand to the maximum of movement capability dimension of the basis-of-design product (+25% of nominal material size) within 24 hours at room temperature 68°F (20 °C).

***END OF GUIDE SPECIFICATION***

COLORSEAL GuideSpec (.doc)

Member:

Sealant Waterproofing and Restoration Institute

Construction Specifications Canada

Expansion joints and precompressed joint sealants by EMSEAL

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