Surface pre-treatment coating film and process for metallic substrates

Abstract

The various embodiments herein provide a method and composition to produce an anti-corrosive layer. According to one embodiment herein, a titanium based sol is synthesized and deposited on a substrate, dried for 120° C. for 1 hour, calcinated upto 400° C. for 1 hour, doped with a corrosion inhibitor, dried and deposited a layer of hybrid silica sol and cured to obtain the anticorrosive layer. According to another embodiment, a surface pre-treatment coating has a composition comprising a titanium dioxide layer, a corrosion inhibitor doped on the titanium dioxide layer, a hybrid silicate layer deposited on the doped titanium layer to form a coating to provide an improved corrosion resistance and self-healing effect.

Dependencies are inferred from the claim text.