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Login with my Xometry account Effect of zinc flake coating thickness on bolt performance
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In an automotive subframe project using M12 class 10.9 bolts, exposed to salt spray and vibration, I’m looking into zinc flake coatings for corrosion protection. Curious if doubling the coating thickness—from 8 µm to 16 µm—actually improves durability in the field, or if benefits plateau and sealing topcoats make a bigger difference. Has anyone seen clear data or long-term results on this?
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