Apply Varnish to protect Airbrush paint on metal, plastic, ceramic and other hard surfaces. Use as a topcoat (on nonporous surfaces) for added durability.
Spray varnish onto completely dry painted surfaces using approximately 40 psi and a nib size no smaller than 0.5 mm. Thin with water if necessary. To accelerate drying and for a more durable finish, carefully apply light heat with a heat gun. Clean up with water.