Xypex Megamix I is a thin parge coat for the water- proofing and resurfacing of vertical masonry or concrete surfaces when mixed with Xycrylic Admix. Megamix II is a one component thick repair mortar for the patching and resurfacing of deteriorated concrete and masonry.  Megamix I is applied by brush or trowel up to a thickness of 3/8 in. (10 mm) and Megamix II can be either sprayed or trowel applied at a thickness of 3/8″ – 2″ (10 – 50 mm).