Boron varnish for metals. simple recipes

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FACTORY TECHNOLOGIES AT HOME - SIMPLE RECIPES
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Boron varnish for metals. Simple recipes and tips

Factory technologies - simple recipes

Directory / Factory technology at home - simple recipes

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How to cook boron varnish for metals?

As you know, there are many colored alcohol varnishes for coating metals on sale. But even the best of them are distinguished by one very large drawback: they are very loosely held on a polished metal surface and easily rebound from it.

The best way to eliminate this shortcoming turned out to be the admixture of a small amount of pure crystalline boric acid to the varnish. Experience has shown that it is enough to add 0,5% boric acid to an alcohol varnish to obtain a very durable coating: a polished metal surface, as well as clean tin plate coated with such a varnish, are distinguished by such a hard glaze-like varnish that, in contrast to ordinary, it is absolutely impossible to separate .

However, it must be borne in mind: you should not use more than the indicated proportion of crystalline boric acid, otherwise the varnish may significantly lose the brightness of its color.

Author: Korolev V.A.

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