Putty

—1. A cement used by painters and glaziers for stopping nail holes or defects in woodwork or iron before painting; for securing gla in window frames, ete. It is made of dry whiting (pure chalk ground and washed) mixed with raw linseed oil. Putty used in hot countries should have a little cottonseed oil added to retard the drying, and for glazing requires the addition of ten per cent. white lead to increase its durability. 2. A cement used by engineers, made of red lead mixed with white lead and linseed oil; especially useful for joints between rough surfaces; as, on boiler mountings. 3. A thin mortar, having considerable water added to it, employed by plasterers. 4. A paste composed of lime and water, used by plasterers and builders.