Products / HS 3220 Skylight Coating

HS 3220 is a clear, solvent-free, one-component moisture-curing silicone coating for existing fiberglass skylights. Its data sheet lists 90 percent solids by volume, VOC of 50 grams per liter, and a recommended rate of 30 mils (about 2.25 gallons per square) applied by roller or brush in multiple coats. It is sold in 1 and 5 gallon containers.