Corrosion resistant coating

摘要

Corrosion resistance is provided to metal substrates by the application of a hydrophobic resinous substance containing slightly alkaline particles in suspension. When applied to the metal substrate surface the cured resin provides a controlled diffusion barrier to the particles contained therein. Upon exposure to a liquid medium containing dissolved acid salts the alkaline substance leaches through the coating to neutralize the solution. The corrosion resistant coating is especially effective as an automotive finish primer and an autobody undercoat.