West Development Group (WDG) introduces two new solvent-free silicone roof coatings. HSS 535 and HSS 540 R2R are both one-component, moisture-curing silicone rubber roof coatings designed for use on sprayed-in-place polyurethane foam. These coatings can be rolled or spray-applied and touch-up work can be done with a brush or a roller. Ready to use on commercial or industrial roofs, these WDG silicone roof coatings should be applied to a dry, frost-free surface. They are tack-free within one to two hours and cure at normal temperatures in 2 to 6 hours by reacting with moisture in the air, forming a durable and flexible, moisture-free seal. HSS 535 and HSS 540 R2R are both a dispersion of silicone rubber. Because they are solvent free, they are environmentally friendly while providing the same functionality as other alternatives. For more information, call 866-924-4585, e-mail info@wdgsilicones or visit www.wdgsilicones.com.