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For Removing Old Putty

For removing hard putty from a window-sash, take a square piece of iron, make the same red-hot, and run it along the putty till it gets soft. The putty will peel off without injuring the wood-work. Concentrated lye made of lime and alkali will affect the wood and make it rot quicker. (See No. 2784.) 2787. Τo Remove Paint from Old Work. To destroy paint on old doors, etc., A mixture of glue size and red lead; or shel- lay the mixture in receipt No. 2784 over lac dissolved in alcohol and mixed with red the whole body of the work which is relead; or gutta-percha dissolved in ether; will, either of them, make a good coating for knots, but will not stand the sunshine, which will draw the pitch through the paint. The best method is to cover the knot with oil size, and lay a leaf of silver over it. 2778. Το Kill Grease Spots Before Painting. Wash over smoky or greasy parts with saltpetre, or very thin lime whitewash.

If soap-suds are used, they must be washed off thoroughly, as they prevent the paint from drying hard. 2779. To Make a Sticky Painted Surface Hard. Rub it well in, with a brush, with Japan and turpentine mixed together. 2780. To Prepare Plastered Walls for Painting. Plastered and hard finished walls must have a coating of glue size before painting. (See No. 2815.)