Does galvanizing provide good insulation?
Does galvanizing provide good insulation?
(OP)
I know it typically blocks a decent chassis ground connection for a screw terminal. You have to mask the terminal off before the part is galvanized, scrape through the coating afterward, or use a star washer to 'bite' through it.
Is it a reliable insulator though? Has anybody seen any specs on it?
What about in an explosive environment, where items are classified as metallic (conductors) or non-metallic (insulators). Isn't the zinc-oxide from the galvanization process a non-conducting metal?
Thanks,
John D
Is it a reliable insulator though? Has anybody seen any specs on it?
What about in an explosive environment, where items are classified as metallic (conductors) or non-metallic (insulators). Isn't the zinc-oxide from the galvanization process a non-conducting metal?
Thanks,
John D





RE: Does galvanizing provide good insulation?
On any steel chassis parts we make we start with galvannealed steel sheets (because it cuts out one plating step prior to powdercoating) and simply mask the ground area then powdercoat..leaving the exposed galvannealed steel. This is fully acceptable by UL,etc...
RE: Does galvanizing provide good insulation?
Thanks,
John D
RE: Does galvanizing provide good insulation?
Maybe you mean anodizing for aluminum and not galvanizing? Galvanizing is for steel.
RE: Does galvanizing provide good insulation?
Galvanizing does not apply to aluminum or any other metal, it's something that applied to steel or iron.
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RE: Does galvanizing provide good insulation?
Some conversions, including Iridite, will conduct somewhat, but electrical bonding per mil spec requires bare metal.
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RE: Does galvanizing provide good insulation?
Anodizing is an oxide. Most oxides are NOT conductive. If you anodize some aluminum you must do something 'else' if you want to electrically connect to the aluminum thru the anodizing.
Keith Cress
kcress - http://www.flaminsystems.com
RE: Does galvanizing provide good insulation?
Please continue any discussions in thread248-260313: Does anodization provide good insulation?.