Roof coatings

The HSS 535 and HSS 540 R2R are solvent-free silicone roof coatings designed for use on sprayed-in-place polyurethane foam.

By Plant Engineering Staff June 11, 2008

The HSS 535 and HSS 540 R2R are solvent-free silicone roof coatings designed for use on sprayed-in-place polyurethane foam. The one-component, moisture-curing coatings, which can be roll-on or spray-applied, are suitable for use on commercial or industrial roofs. The coatings are designed to be tack-free within one to two hours and cure at normal temperatures in two to six hours by reacting with moisture in the air, forming a moisture-free seal. The HSS 540 coating contains 20% recycled EPDM material, and both coatings passed the ASTME108 flame spread test. Both coatings are also UL Class A fire rated.

West Development Group

www.wdgsilicones.com