Environmentally friendly MS polymer adhesive, jointing and sealing compound. Tec7 is a mounting glue, wood glue, polyurethane sealant, silicone, sanitary sealant, acrylic, butyl sealant, needle sealant and window putty! Adheres to wet surfaces. Hardens quickly, does not shrink, does not run and remains flexible. Glues strongly: 27 kg/cm² - no primer needed