polyurethane to keep metal from turning black?

I use these charms that people like that are rather cheaply made metal. I would like to know if there is a way to keep them from 'turning black.' Someone told me to spray them with a light coat of polyurethane.

Will spraying with a light coat of polyurethane work?

If so, can I spray it will a light coat of silver shine first as well?

Thanks.

Reply to
meteor1964
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I'd be concerned about build-up of spray and losing detail, but I also that I would try it.

THEN...let us know what happens!

Reply to
LaurieB

Thank you. I just found out that the charms are silver plated - the company just upgraded them so I'm not going to worry about it.....

Now what the heck is nickel free, rhodium plated? One company is telling me that it is less likely to turn than silver plated. and that it has a more platinum look? Anyone know?

Thanks.

meteor

Reply to
meteor1964

Nickel is something quite a few people are allergic to (my mother is one of them), so it's of some importance to make sure that the plating is nickel free as well. If you go for un-plated pewter you may be better off than with silver plated pewter as allergies go.

Not sure this helps ...

Maren HiloBeads: Beads - Beading Supplies - Hand-made Jewelry

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Reply to
Maren at google

You'd get a very good answer from Peter in the rec.crafts.jewelry newsgroup...

He can tell you exactly what Rhodium is, why its used, etc.... but all in all, having a rhodium plated silver piece means that the piece WONT tarnish. Rhodium is extremely corrosive resistant and unreactive, so it does not tarnish like silver.

Sterling

Reply to
Sterling

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