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Thread 149/00

Zinc-based epoxy for stainless steel painting

I was informed that zinc-based primer is not suitable for coating stainless steel. The part in question is going to be welded to a carbon steel, and the carbon steel will be painted, thus the stainless should get a coat, too. The reasoning is that zinc-based primer is not suitable is that the zinc in the coating may react with the chrome in the stainless steel.

Is that true? How may I coat the stainless steel safely?

The equipment in question is a high pressure catalytic converter vessel in a urea plant.

Hans A.
- Bintulu, Sarawak, Malaysia
publicly reply to Hans A.

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