Life Deck LD10 50 lb LD-10 Sloping and Patch Repair Cement. Create a perfect slope from zero to three inches in one pass! Perfect for sloping, deck repairs, and creating proper water run off, Life Deck LD-10 is a special formulated cement blend with a variety of silica sands and proprietary additives. LD-10 is primarily used for sloping, filling cracks, repairing and/or patching. LD-10 is dry polymer meaning it only requires water to blend with. Do not mix with LD-81, 1589 modifiers or modifiers from other manufacturers in with LD-10 mixture.