Rare metal coating could save precious metal from scrap heap

Rare metal coatings can be used to help protect precious metals from scrap.

The materials can be applied to metals that have been contaminated or damaged by dust or contamination.

But, the coating is not without problems.

Some metals that are coated by the coatings may corrode and weaken.

This can create a risk of a metal being lost.

Rare metals can be a source of great pride, but they can also pose serious risks.

This article is part of a series exploring rare metals and their role in the U.S. economy.

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