ARDEX SD-P Self-Drying Trowelable Concrete Underlayment is formulated with a special blend of Portland cement, other hydraulic cements, and polymers. It is a fast-setting, self-drying, trowelable patching compound for smoothing and repairing concrete floors, ramps, and stairs, as well as non-porous substrates such as terrazzo, ceramic, and quarry tile, prior to flooring installation.
