Fills gaps to bridge irregularities and voids in projects. Used for subflooring, paneling, plywood, bathroom fixtures, insulation, furring strips, electric outlet boxes, chip and wall board, marble sills, moldings, trims, signs, name plates, brick, stone,etc. Designed for a wide range of construction and remolding applications. Excellent aging characteristics. Easy to apply. Remains flexible. Good impact characteristics. Waterproof, general purpose mastic. Exceeds HUD-FHA and APA requirements under specifications AFG-01 and FHA bulletin UM-60 and ASTM C 557. Covers approximately 275-325 sq. ft of plywood floor installations per gallon of adhesive.