Use TEC Patch Additive admixture for select TEC brand dry powder surface preparation products. This acrylic latex-based product is freeze/thaw-stable, water-resistant, and can improve the adhesion, bond strengths, and flexural strengths of TEC VersaPatch, PerfectFinish, and Fast-Set Deep Patch. Tec Div. of H.B. Fuller Construction Products Inc. www.tecspecialty.com