Phosphate coatings are used on steel parts for corrosion control or as a foundation for subsequent coatings or painting. It serves as a conversion coating in which a dilute solution of phosphoric acid and phosphate salts is applied via spraying or immersion and chemically reacts with the surface of the part being coated to form a layer of insoluble, crystalline phosphates
Finish is a dark matt grey, ideal for primer coat.
Our bulkheads are double coated to reduce the occurence of unsightly 'smoke trails' that can occur when phosphate coating complex fabrications.
After selecting the bulkhead required, please also order the final surface coating required.