With its unique formula, MegaLite offers the ultimate in bond strength for the most demanding installation requirements and the flexibility to withstand horizontal substrate movement up to 1/8 inch (3 mm) without transmitting cracks through the tile installation. Formulated with CustomLite Technology, MegaLite is 40% lighter than other mortars providing excellent handling characteristics. A 30 lb. (13.6 kg) bag covers the same area as a 50 lb. (22.68 kg) bag of traditional mortar making it easier to carry. Offers non-slip/non-slump characteristics for installing large, heavy tile and stone on floors and walls. Made with 100% recycled materials contributes to LEED certification. Exceeds ANSI A118.4 and A118.11 without the need for additives.