Sika Sikaflex-521 UV White is a one component, general purpose, non-sag, elastic, silane-terminated polyurethane hybrid sealant. It cures on exposure to atmospheric moisture, forming a durable elastomer. Isocyanate and solvent-free. Compatible with a variety of substrates including metals, metal primers and paint coatings, wood, ceramic materials, and plastics. 300 mL Cartridge.
Typical Use: | Used for applications requiring permanent, high-strength elastic seals. |
Brand: | Sikaflex |
Chemical Composition: | Silane-Terminated Polyurethane |
Color: | White |
Components: | 1 part |
Cure System: | Humidity |
Elongation: | 400% @ break |
Flash Point: | >101 °C |
Hardness: | 40 A |
Service Temperature: | -40 to 90°C |
Tack Free Time: | 30m |
Tensile Strength: | 260 psi |