This primer can be applied to all surfaces, resin, PVC, brass, white metal or wood. The primer protects even the smallest detail of a model and improves the adhesion of the paints applied to this support. It is recommended to apply the primer in several layers; the product dries quickly and forms a homogeneous film of extraordinary strength and resistance within a few hours of application. Surface Primer can be used directly or diluted with Vallejo Airbrush Thinner or Flow Improver