Hercules® Sta Put® Plumber's Putty, Pail, 3 lb, 3.15 lb Net Weight, Composition: 60 to 100% Calcium Carbonate, 5 to 10% Kaolin, 1 to 5% Mineral Wool, 1 to 5% Petroleum Based Lubricating Oil, <1% CrystalLine Silica (Quartz), 16.5% Other Component, Solid, Off-White, Slight, 2.15 to 2.35 Specific Gravity, >212 deg F Flash, 6 g/L VOC, >5000000 cP Viscosity Rating