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Product attributes Category: Polyurethane foaming agent Appearance: Foam Brand: Bukneri Gas volume: 2.5 (ml/g) CAS: Polyurethane Scope of use: caulking of doors and windows of buildings, caulking of expansion joints and holes of components Specifications: 900 grams Whether it is a dangerous chemical: no Curing conditions: room temperature curing Notes 1. Clean the sizing surface to remove oil stains, if the temperature is higher than 0°C, spray a little water on the surface; 2. After shaking the tank for 30 seconds, install the nozzle on the material tank, and keep the material tank vertically downward during use; 3. Slowly apply glue layer by layer from bottom to top in the gap, filling the gap 50-70% vertically downward; 4. When gluing, it is necessary to fill the gap accurately, and ensure that both sides of the gap are filled with foam to 5. Use a blade to cut off excess foam after curing; 6. The surface of the foam can be covered with silica gel, cement, paint to prevent damage from ultraviolet radiation (24 hours after sizing)