Premium grade, heavy-duty, professional quality mastic. Based on a synthetic elastomeric polymer and resin formula bonds most substrates. Exceeds APA AFG-01 specifications and HUD/FHA use of materials bulletin No. 60. Easy-to-use and super strong. Use to bond plywood, paneling, wallboard, bathroom fixtures, tile and floor coverings plus more. Extremely flammable. Color: Buff. Coverage: Approximately 275 to 325 sq. ft. of plywood floor installation per gallon of adhesive with 16" joist spacing and approximately 325 to 400 sq. ft. per gallon of adhesive with 24" joist spacing using 1/4" to 3/8" diameter bead size.