Description All Purpose Wallboard Joint Compound, Ready-Mixed, 4.5-Gal. Product Details Application Method: Machine Tool Boiling Point: 100 deg C Color: Off-White Compositions: Attapulgite Kaolin Limestone Mica Perlite Quartz Sand Talc Container Type: Pail Coverage Area: 1000 sq-ft Density: 1.4 to 1.8 Flammability Rating: 1 Form: Paste Net Content: 4.5 gal p H Range: 7.5 to 9.9 Specific Gravity: 1.3 to 1.7 Temperature Rating: 55 deg F V O C Content: 2 g/L Features Great bond, hard-finish surface Excellent for skim coating, embedding tape and for filling, finishing