SKU: AV73604 | Brand: Vallejo | Product: Vallejo Surface Primer Ger Dark Yellow 60 ml Vallejo Surface Primer Dunkelgelb (RAL7028) is an acrylic polyurethane primer in water-based formula. Compatible with resin, PVC, brass, white metal, and wood surfaces. Layered application produces a strong, uniform protective coating while maintaining minute model details and maximizing paint adhesion. Quick-drying with full hardness achieved in hours. Spray undiluted or dilute with Vallejo Airbrush Thinner or Flow Improver. Recommended compressor setting: 15–20 PSI (0.5–1 kg). Clean airbrush with Vallejo Airbrush Cleaner.