Gibonol Instablack 33 Description Application: A blackening process for cold and hot rolled carbon steels, alloy steels, tool steels, cast iron, forged steels and powdered metals. The Growel Advantage: It is a room temperature blackening chemical that achieves a polished black finish by applying rust preventive oil. Moreover, this compound can be combined with surface conditioner Surcon 351, contingent on the type of material in process. It is both economical and environment-friendly. get a quote
