Rust converter

Rust Converters are chemical solutions or primers can be applied directly to a rusty surface on steel or iron alloy surfaces to convert initial and residual rust to barrier and adherent chemical compounds onto the surface. These chemical compound interact with iron oxides specially iron(III) oxide, Fe2O3 (rust) to noble and protective black layer with resistive against humidity and also protect the surface from further corrosion process. These are able to develop a protective film (usually phosphates) on the metal surface that protect against rust. It is sometimes named as "rust remover" or "rust killer". commercial rust Converters are a water-based primer, contains two active ingredients: Tannic acid  and an organic polymer. Tannic acid, reacts with iron oxides (rust) and chemically converts it to iron tannate, a dark-colored stable material. The second active ingredient, usually 2-Butoxyethanol, is an organic polymer that provides a protective primer layer. Usually rust convertor apply for objects which are difficult to sand blasting or coating with organic layers such as: vehicles, trailers, fences, iron railings, sheet metal, outside of tanks, and more.