Which primer is known for etching bare metals to aid in adhesion?

Etch primer is specifically formulated to chemically etch the surface of bare metals, creating a surface texture that enhances adhesion for subsequent coatings. This primer contains acidic components that promote a reaction with the metal surface, allowing it to bond more effectively. This quality is especially important when working with metals that may have a smooth finish, as the etching process increases the surface area for adhesion, improving the durability and longevity of the paint or coating applied later.

In various applications, such as automotive painting or industrial coatings, the use of etch primer helps prevent issues like peeling or flaking, which can occur if coatings are not properly adhered. Consequently, etch primers are a vital component in ensuring long-lasting finishes on bare metals.