How pure is the gold used for the ENIG layer? We are using them for redox reactions and the purity is a concern. Thank you!
Thank you for your inquiry.
I’ve requested information on the purity/plating thickness from the DK Red service fabricator. I’ll get back as soon as I have any information.
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The purity of the Gold Deposit is 99.96%
The Nickel plating thickness is between 118-236 microinches, and the Gold Thickness is between 1.58 and 3.94 microinches.
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Thank you so much for your prompt and detailed response. Much appreciated!