Sheetrock, 3.5 QT Pail, Dust Control, Lightweight, All Purpose Joint Compound, Formulated To Reduce Airborne Sanding Dust, Binds Fine Residue During Sanding To Form Heavier Particles That Drop To The Floor Instead Of Clouding The Air, A Cleaner Job Environment, Weighs 30 Percent Less Than Conventional Compounds & Requires Only 2 Coats Over Metal, Such As Paper Faced Corner Beads & Fasteners, Sands With The Ease Of A Topping Compound & Bonds Like A Taping Product, Delivering A Tough, Tight Bond Under Most Demanding Job Conditions.