SKU: AV73615 | Brand: Vallejo | Product: Vallejo Surface Primer USN Light Ghost Grey 60 ml Vallejo Surface Primer in USN Light Ghost Grey is an acrylic polyurethane water-based primer. Applies to resin, PVC, brass, white metal, and wood substrates. Successive applications form a robust, uniform finish that retains model detail clarity and promotes paint adhesion. Achieves full strength within hours of application. Spray straight or mix with Vallejo Airbrush Thinner or Flow Improver. Airbrush pressure: 15–20 PSI (0.5–1 kg). Maintain with Vallejo Airbrush Cleaner.