U-POL High 5 400ml Aerosol Primer.High #5 from U-POL is a high-build primer for the rapid repair of surface defects in painted panels. It may be used for small spot repairs or complete coating of new panel. High build, fast drying and easy sanding. Chromate free, it can be applied to the following surfaces: Fully cured paint, Polyester body fillers and FRP. This can be supplied in Grey or White. Please choose the preferred colour from the drop down menu.