Motor Coater is a self-priming, direct-to-metal finish coat, so a separate primer is not required. For best results, clean the surface with KBS Klean, then etch it with RustBlast before applying your finish coat.
Tip: For surfaces that are pitted, coarse, or prone to rusting, apply RustSeal as a base coat first. It smooths the surface and locks out rust under your Motor Coater finish coat.
Ready to coat your engine or motor? See the complete Motor Coater Application Directions for full color options and technical specs.
Frequently Asked Questions: Motor Coater Surface Preparation
Motor Coater is a self-priming, direct-to-metal finish coat, so a separate primer is not required. For maximum adhesion and durability, always clean the surface with KBS Klean and etch it with RustBlast before applying. On pitted, coarse, or rust-prone surfaces, a base coat of RustSeal is strongly recommended for a smooth, long-lasting finish.
Use KBS Klean to thoroughly degrease the surface, removing all oil, grease, and contaminants. After cleaning, apply RustBlast to etch the bare metal and remove any surface rust. This two-step prep creates a chemically active surface that promotes maximum adhesion for Motor Coater.
For surfaces that are pitted, coarse, or prone to rusting, apply RustSeal as a base coat before Motor Coater. RustSeal encapsulates existing rust, smooths rough surfaces, and forms a permanent barrier that prevents rust from forming under your finish coat.
Motor Coater will bond to clean, bare metal, but skipping the prep steps significantly reduces adhesion and long-term durability, especially in high-heat engine environments. For the best results, follow the full KBS system: clean with KBS Klean, etch with RustBlast, and seal with RustSeal if needed before applying Motor Coater.
Follow the KBS 3-Step System in this order: Step 1, clean with KBS Klean to remove all grease, oil, and contaminants. Step 2, apply RustBlast to etch bare metal and neutralize rust. Step 3, on pitted or rusty surfaces, apply RustSeal as a base coat. Step 4, apply Motor Coater as the finish coat.
Still have questions about preparing your surface for Motor Coater? Contact us for help.
