What PSI should I use for airbrush model painting?

General guideline: 15-20 PSI for primers, 12-18 PSI for base coats, 8-15 PSI for detail work and fine lines. Thin paints spray well at lower pressure; thick paints need higher pressure. Start at 15 PSI and adjust — if paint splatters, reduce pressure; if it does not atomize smoothly, increase pressure. Each paint brand has different viscosity, so testing on scrap plastic before painting your model is essential.

How do I clean an airbrush between colors?

Quick color change: spray airbrush cleaner or thinner through the airbrush until it runs clear — takes 30 seconds. End of session deep clean: disassemble the nozzle cap and needle, soak in appropriate cleaner (water for acrylics, thinner for lacquers), wipe the needle, reassemble. Never let paint dry inside the airbrush — dried paint in the nozzle is the number one cause of airbrush problems. Clean immediately after each painting session.

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