Answers to the most common Motor Coater questions, from application and spray settings to curing, heat ratings, and specialty uses like brake calipers and marine engines. Type below to search, or browse the full list.
Motor Coater Questions and Answers
Do You Need to Prime Before Applying Motor Coater?
Motor Coater is self-priming and direct-to-metal; clean, etch, and prime only if the surface is pitted or rusty.
What Is the Maximum Temperature Motor Coater Can Handle?
Motor Coater is rated to 500°F. For exhaust and headers up to 1500°F, use XTC instead.
Does Motor Coater Need to Be Heat Cured?
No, Motor Coater air-cures fully at room temperature in up to 7 days. Heat cycling or force curing can speed this up.
How Do I Spray Motor Coater With a Spray Gun?
Thin 5 to 10 percent with KBS #1 Thinner or xylene. Siphon guns run 35-45 psi, gravity guns 25-35 psi.
What Thinner Should I Use to Brush Motor Coater?
Usually none. Thin 5 to 10 percent with KBS #1 Thinner or xylene only if the paint feels thick.
Can I Make Motor Coater an Aerosol?
Yes, reduce it 30 to 40 percent with KBS #1 Thinner or xylene and spray through a Preval Sprayer Kit.
Can Metallic Colors of Motor Coater Be Brushed?
Yes. A second light pass in one direction after the first coat tacks up floats the metallic pigments to the surface.
Is Motor Coater Glossy and Shiny?
Yes, high gloss, 90-95 on a gloss meter. Velvet Black is the only matte exception.
Is Motor Coater UV Resistant?
Yes, Motor Coater is UV stable and exterior grade, so it holds color and gloss in the sun.
Motor Coater on Bare Aluminum
No etching needed. Clean with KBS Klean, let dry, then apply Motor Coater directly.
Motor Coater on Brake Calipers
Yes, rated to 500°F with a comfortable margin above street caliper temperatures. Prime with RustSeal first.
Motor Coater on an Oil Pan
Clean, etch, prime with RustSeal, then finish with Motor Coater for the most durable result.
Motor Coater on Suspension Parts
Yes, spindles, A-arms, and similar chassis parts. Exterior grade and UV stable, prime with RustSeal for rust protection.
Motor Coater on a Marine Engine
Clean with KBS Klean, treat rust with RustBlast, prime with RustSeal, then finish with Motor Coater.
