This is a UP0719 Reface-2K Polyester Spray Filler 1L. Highly effective polyester spray filler for the prepartion of irregular steel & glass fibre surfaces. Has very high build with excellent adhesion to metal. Ideal base for paint systems. Easy-to-sand. Can be applied to the following surfaces: Bare metal, polyester fillers, old sound paint surfaces (with the exception of thermoplastic acrylics)