U-POL P38 polyester filler is a two component chemical paste used for the filling of holes and imperfections in surfaces such as steel and GRP. Its special formula combines good filling and smooth spreading properties together with ease of sanding.
Can be used on the following surfaces; bare steel, original paint surfaces (with the exception of thermoplastic acrylics) and GRP. Can be over-painted with most paint systems including 2K. Ideally a full system is recommended including primer.