Sikaflex®-521 UV is a one-component, isocyanate-free polyurethane sealant that cures in the presence of moisture to form a durable elastomer.
Advantages
- Single component - Flexible - Excellent resistance to ageing and UV - Good adhesion without primer on many substrates - Can be sanded and painted - Low odour - Non-corrosive - High electrical resistivity - Solvent and VOC free - Silicone and PVC free - Isocyanate free
Fields of application
Sikaflex®-521 UV has good adhesion properties on a wide range of substrates and is suitable for making permanent seals.
It can be used on wood, metals, primers and paints (two-component), ceramics and plastics.
