OCR Text |
Show Varnish to Imitate Ground Glass. To make a varnish to imitate ground glass dissolve 90 grains of sandarac and 20 grains of mastic In two ounces washed methylated ether, and add, in small quantities, sufficient benzine to make it dry with a suitable grain, too little making the varnish too transparent transpar-ent and an excess- making It crapy, The quantity of benzine required depends de-pends -upon the quality, from one-half to one and one-half ounces, or even more. The best results are obtained from a medium quality. It Is important impor-tant to use pure washed ether, free from spirit. .. |