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FIRE-PROOF PAINT.

Issue 17 and Volume 11.

FIRE-PROOF PAINT. La Papeterie, describes a fire-proof coating for woods invented by Vilde and Schambeck: The paint consists of twenty parts of finely pulverized glass, twenty parts of finely pulverized porcelain, twenty parts of any sort of stone in powder, ten parts of calcined lime, and thirty parts of water glass (silicate of soda), such as is usually found in commerce. The solid elements, having been powdered as finely as possible and sifted, are moistened and then intimately mixed with the water glass. This yields a mass of sirupy consistence that may be employed for painting, either alone or mixed with color. The addition of the lime gives a certain unctuosity to the mass for whitewashing, and its combination with the silicic acid of the soluble glass serves to bind the other materials together. The proportions of the different elements above mentioned may be changed save that of the water…

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