The SIKA CORPORATION 810136 Sikaflex Primer 173 is suitable for priming various joints and substrates. It is specifically designed for use before applying Sikaflex NP 1, Sikaflex TX 1, Sikaflex NP 2, Sikaflex CR 195, Sikaflex SL 1, Sikaflex SL 2, Sikaflex HY 35, Sikaflex HY 100, and Sikaflex HY 150 series sealants in construction and other sealing applications.