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Substrates and Pretreatment Issues

Touching up wrinkle powder coating: Our touchup coat of wrinkle powder coating on HRPO steel is flaking off. What can we do?

Q: We currently use a “midnight black” wrinkle powder coating supplied by a major powder producer. Can a second touchup...

Zinc-rich primer: Why are the topcoat and base peeling off our outdoor iron rail fencing?

Q: What is the best powder coating primer to use as a base coat on fencing outdoor iron rails? We...

Powder coating outdoor durability: How to eliminate pinholes on steel gates

Q: I design and manufacture designer gates cut from 3-mm mild steel. When I get the raw steel back from...

TGIC-free powder: What’s causing the pinholes and voids on our customer’s parts?

Q: I am dealing with a very perplexing issue on some parts, and I’m out of answers for my upper-management...