American Clay Enterprises’ new Lime Putty, which is made with U.S.-sourced lime, can be used for gauging the company’s Earth Plasters (to increase hardening) and also mixed to make a limewash. As a gauging material, Lime Putty can be added to both American Clay’s original and commercial plasters. The addition of Lime Putty reduces the working time of the plaster, but the end result is a harder finish, achieving near maximum hardness in six months. When used as a limewash, Lime Putty adds sheen and can cover 200 to 400 square feet per gallon per coat. It comes in 1-gallon buckets weighing 10 pounds and should be applied by American Clay Artisans or experienced plaster professionals.