Zinc Rich Coatings

Due to higher potential of zinc metal in galvanic series compared to iron, zinc acts as an anode and protects iron cathodically.
Zinc rich coatings can be offered in 2 variants: using an organic or an inorganic binder.
Zinc rich epoxy coatings provide excellent cathode as well as barrier protection properties.
Inorganic zinc silicate can be made using sodium silicate, potassium silicate and ethyl silicate binder. They give excellent cathode protection, corrosion resistance and heat resistance.
Zinc rich coatings are used by many sectors to protect steel substrates from corrosion. They have a variety of usages such as infrastructure, industrial and even automotive.
GP has developed a series of zinc rich coatings with a varying percentage of zinc content based on the application.
GP’s product portfolio includes weldable zinc silicate shop primer, ideal for steel sheet protection that is also approved by Indian Register of Shipping.