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Joined: Oct 2010
Posts: 1,005 Likes: 5
ChatMaster - 1,000
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OP
ChatMaster - 1,000
Joined: Oct 2010
Posts: 1,005 Likes: 5 |
I had several clips cadmium plated that should be painted black. Is there a way to paint these pieces AND have the paint stick? Any special prep to the plating? I was going to lightly scuff the surface with a Scot-Brite pad, use a self etching primer and top coat with semi-gloss black paint. Are there any issues with this plan? I understand that Cadmium plating is toxic and I plan on wearing the correct mask. Thanks
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Joined: Nov 2003
Posts: 2,576 Likes: 2
ChatMaster - 2,000
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ChatMaster - 2,000
Joined: Nov 2003
Posts: 2,576 Likes: 2 |
i lightly dust the cad plated part in my glass header, then go with the epoxy self-etching primer, then top coat. your method will work if you abrade the part thoroughly but glass beading is quicker. good luck,mike
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Joined: Oct 2010
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ChatMaster - 1,000
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ChatMaster - 1,000
Joined: Oct 2010
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When you say abrade the part thoroughly - do you mean remove all of the plating? I do not have a glass beader or any type of blasting tool.
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Joined: Nov 2001
Posts: 19,758 Likes: 63
ChatMaster - 15,000
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ChatMaster - 15,000
Joined: Nov 2001
Posts: 19,758 Likes: 63 |
The more small scratches the better the paint will adhere. Abrading with the pad to completely dull the surface and then the etching primer should be okay.
How Sweet the roar of a Chevy four!
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Joined: Oct 2009
Posts: 1,294
ChatMaster - 1,000
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ChatMaster - 1,000
Joined: Oct 2009
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A coat of zink crommate paint first would be a good idea. I always used it on aluminum.
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Joined: Oct 2010
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ChatMaster - 1,000
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ChatMaster - 1,000
Joined: Oct 2010
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Thanks everyone for your suggestions. As soon as the weather gets a little warmer, I will try the suggestions posted. Will let you know how they worked.
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Joined: Nov 2008
Posts: 408 Likes: 10
Backyard Mechanic
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Backyard Mechanic
Joined: Nov 2008
Posts: 408 Likes: 10 |
If you google "removing cadmium plating" you will find a variety of methods, some of which sound scary. I use a quick dip in mild phosphoric acid (old school auto body metal prep). According to the web, muriatic acid, vinegar or even Easy Off Oven Cleaner will work at different speeds. By the way, gun bluing that comes in a bottle will make the striped parts look close to the original black. It does not offer much corrosion protection however.
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