Rust-Oleum Automotive Self-Etching Primer Spray both etches and primes hard-to-coat surfaces to ensure proper top coat paint adhesion. Use to protect and help create a professional-looking finish on bare metal, aluminum or fiberglass. Advanced formula is designed to stop rust and prevent further corrosion for a longer lasting finish. Ensures maximum topcoat adhesion while providing a smooth finishing surface. Primer features a wider spray tip for comfort during extended spraying and can be used at any angle, including upside down.

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