REFACE is a highly effective, two component sprayable polyester for the preparation of steel and fiberglass surfaces. Very high build and easy to sand, providing the perfect flat surface for priming Adheres to metal, filler and primers Ideal base for most paint systems Substrates: Bare metal, fiberglass, SMC, polyester putties and body fillers, fully cured paint surfaces Size: 2.5 Liter Tin Color: White CTN: 6 Comes with liquid hardner Replacement Hardener UP0739 Case Qty Hardener6 Number Supplied1 Hardener Weight60ml .