This clear wood finish brushing spray is 100-Percent nitrocellulose brushing lacquer for most interior wood and metal surfaces * Fast 30-minute dry and ready to sand in 1 hour * This lacquer sanding sealer is formulated to work best as a first coat, it is easy to sand, and speeds up finishing because it dries fast * One coat will seal hard wood, soft wood, plywood, particleboard and mdf. It is non-toxic when dry * Available in convenient 12-ounce aerosol spray with an adjustable spray valve