Composition: CR Fe Zn Al References: Maximum Temperature 2300 F. May be used with our without Zinc. Zinc not necessary but better with. Mason Stains Home Page 6027 Terracotta - 1/4 pound 6027-14$3.76 Terracotta - 1/2 pound 6027-12$7.03 Terracotta - 1 pound 6027-1$13.10 Terracotta - 5 pounds 6027-5$60.65