- Product Type:Elastomeric Adhesive
- Application Area:Insulating Glass, Duct Wrap, Brush
- Compatible Substrates & Surfaces:Metal, Wood, Aluminum, Concrete, Galvanized Steel
- Features:Fast Setting, Fire-Resistant
Foster® Spark-Fas® Adhesive 85-20™ is a rapid-setting, non-flammable, fire-resistant synthetic elastomer adhesive. It is specifically utilized for bonding duct wrap, fibrous glass, or mineral wool insulations with densities of up to 6 lbs. to galvanized steel and aluminum air conditioning or hot air ducts. This adhesive is chosen when a fire-resistive dry film is necessary. It contains non-flammable chlorinated solvents, eliminating the risk of explosions and fires during the application process.