Surface Primer is available in a range of basic shades most frequently employed to prepare the surface of the model or miniature before starting the painting process. Primers can be applied on all surfaces; resin; PVC; brass; white metal or wood. The primer preserving even the smallest detail of a model; and improves the adherence of the colors applied on this base. It is recommended to apply the Primer in various layers; the product dries rapidly and forms a homogenous film of extraordinary strength and resistance within a few hours after application. Surface Primer can be uséd directly or diluted with Vallejo Airbrush Thinner of Flow Improver. The recommended compressor settings are around 15-20 PSI or 0.5 to 1 kg. For best maintenance of the airbrush; it is recommended to use the Vallejo Airbrush Cleaner.