Practical House, Wagon and Automobile Painter / including sign painting, and valuable hints and recipes

by W. F. White

VARNISH FOR IRON.

Genuine asphaltum 8 pounds, melt in an iron kettle, slowly adding boiled linseed oil, 5 gallons; litharge, 1 pound, and sulphate of zinc, ½ pound; continue to boil three hours, then add dark gum amber, 1½ pounds, and boil two hours longer. When cool thin with turpentine to good working consistency.