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SEISMIC COLORSEAL DS Guide Specification

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***SEISMIC COLORSEAL-DS by EMSEAL GUIDE SPECIFICATION***

Application: For Watertight Exterior Wall Joints and Interior Wall Joints with Multiple Silicone-Coated Sealing Faces.

Basis of Design:                SEISMIC COLORSEAL-DS (Double-Sided) by EMSEAL.

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: SEISMIC COLORSEAL-DS (Double-Sided) by EMSEAL for watertight exterior joints in vertical and horizontal plane walls (above-grade) and interior applications with multiple silicone-coated sealing faces provided in one integrated primary system.  Typical locations include, but are not limited to the following: parapets, curtain-wall systems, doorways, window-walls, interior partitions as a sound barrier, etc.

Preformed sealant shall be silicone pre-coated, preformed, pre-compressed, self-expanding, sealant system.  Expanding foam to be open-cell polyurethane foam impregnated with a water-based, non-drying, polymer-modified acrylic adhesive. Impregnation density not to exceed 150kg per cubic meter. Wax or acrylic-modified wax not permitted. 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). 

Multiple silicone external color facings 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.

Material shall be capable of movements of +50%, -50% (100% total) of nominal material size.

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 (-50% 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 (+50% of nominal material size) within 24 hours at room temperature 68°F (20°C).

***END OF GUIDE SPECIFICATION***

SEISMIC COLORSEAL DS GuideSpec (.doc)

Member:

Sealant Waterproofing and Restoration Institute

Construction Specifications Canada

Expansion joints and precompressed joint sealants by EMSEAL

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