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Zinc-rich electrocoat designed for high-corrosion applications

PPG has introduced the DRAGONHIDE™ ZRE finish system, a duplex coating system engineered with SPECTRACRON® zinc-rich primer between the base metal substrate and electrocoat finish that helps improve the corrosion resistance of underbody parts and subframe finishes on automobiles.

When the barrier coat on an underbody assembly treated with the system gets chipped by road debris, the sacrificial zinc-oxide layer corrodes, causing the basecoat to heal and protect itself. This helps improve the life of highly exposed auto parts.

The system also can be used for general finishing applications and by heavy-duty and military equipment manufacturers for producing parts that must survive highly corrosive environments.