Apply by a metal knife. For edges orcurve surfaces use a plastic knife. For deep filling apply in several layers alowing drying between the layers(no sanding in-between is required).

Kapci 350 PE putty can be applied over variety of substrates such as bare metal, galvanized original car panels, aluminium, glass fibre reinforced plastic(GRP), and properly sanded and prepared old finishes in sound conditions.
Prior to applying Kapci 350 PE putty the surface should be clean and degreased.