SEM 39683 Grey Self Etching Primer – 15.5 oz | Strong Adhesion to Metal

SEM 39683 Grey Self Etching Primer – 15.5 oz | Strong Adhesion to Metal

The SEM 39683 Grey Self Etching Primer – 15.5 oz is a high-performance, acid-containing primer designed to deliver superior adhesion and corrosion resistance on bare metal surfaces. Trusted by professionals in the automotive refinishing industry, this primer is the perfect first-step coating for steel, aluminum, and stainless steel projects.

Superior Adhesion

Unlike standard primers, SEM Self Etching Primer chemically bonds to metal, creating a strong foundation for topcoats. It ensures reliable adhesion that reduces the risk of peeling or flaking, even in demanding environments.

Corrosion Protection

This grey primer not only promotes adhesion but also helps guard against rust and corrosion. As a result, it provides long-lasting durability, extending the life of your refinishing or repair work.

Easy Application

Packaged in a 15.5 oz aerosol can, the SEM 39683 is easy to apply with smooth, even coverage. It saves time and effort during prep, while its fast-drying formula allows you to move quickly into the painting stage.

Versatile Use

Ideal for auto body repair, restoration, and refinishing projects, this self-etching primer works on multiple substrates, including steel panels, aluminum trim, and stainless steel parts. Whether you’re restoring a classic car, repairing collision damage, or working on custom projects, SEM delivers professional results.

With its reliable performance and proven formula, the SEM 39683 Grey Self Etching Primer is a must-have for anyone serious about achieving a durable, long-lasting automotive finish.