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xloud t1_iudc9jh wrote

Is it safe to drill into yellow zinc? Don't they use hexavalent chromium to make it stick to the metal?

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TheRealBeakerboy OP t1_iudgmiw wrote

A little googling shows there are a couple different ways to make this coating. The hexavalent version is currently not allowed by the EU, but I have no idea if it’s still allowed in the US. Sounds like a big problem among people who perform stainless welding and grinding.

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