SureFlow 042 is a heavy-duty self-leveling cementitious wear topping. SureFlow 042 will form a high-strength abrasion and chemical resistant, self-leveling mortar. Because it is based on portland cement and latex polymers,and does not depend on gypsum, it may be used indoors or outdoors. SureFlow 042 flows out to produce a smooth resurfacing or leveling compound for structurally sound existing slabs. Each bag requires only the addition of water. Because the mortar is polymer modified and is self-curing, it is designed for applications from ¼” up to 2” thick in one pour, without the addition of aggregate. With aggregate addition it may be applied thicker.