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To Paint Zinc

A difficulty is often experienced in causing oil colors to ad- Sandstone..White, Yellow Ochre, Black, Red here to sheet zinc. Boettger recommends the Snuff.. ... Yellow, Vandyke Brown employment of a mordant, so to speak, of the Violet....Red, Blue, White. (See No. 2761.) following composition: 1 part chloride of 2763. To Prepare Whitewashed copper, 1 of nitrate of copper, and 1 of sal-am- Walls for Painting. If there should le moniac are to be dissolved in 64 parts of water, any cracks in the plastering, and the wash be to which solution is to be added 1 part of sound around the cracks, plaster of Paris is commercial hydrochloric acid. The sheets of the best thing to fill them with, as it harders zinc are to be brushed over with this liquid, quickly, does not shrink, and leaves the surwhich gives them a deep black color; in the face level with the wall. If the plaster of course of from 12 to 24 hours they become Paris sets before it can be worked, wet it dry, and to their now dirty gray surface a with vinegar. The stronger the acid, the coat of any oil color will firmly adhere. Some slower it will set. If cracks be filled with sheets of zinc prepared in this way, and afterwards painted, have been found to withstand all the changes of winter and summer.