Rosco Flamex WD is used to treat wood and cellulosic materials. Plywood, board stock, sheet goods, hay, acoustical tile and other common materials can all be rendered flame retardant. After the Flamex treatment has dried fully, wood materials can be painted or stained without affecting the flame retardance.(Expect 150-200 square feet of coverage) 1 Gallon. Click here for MSDS: MSDS