Sikaflex®-521 UV is a multi-purpose, UV resistant, non-sag, elastic, one-part silane-terminated polymer sealant, which cures on exposure to atmospheric moisture to form a durable elastomer. Sikaflex-521 UV is solvent and isocyanate free.
- Very low VOC/solvent free
- Silicone and PVC-free
- High electrical resistance
- Resistant to aging and weathering