Sealant, 521 Hybrid Silane Polymer Black

Sikaflex 521UV long-lasting, weather resistant, low odor, non-corrosive and elastic. UV resistant and can be sanded and overpainted. Bonds well to a wide variety of substrates without the need of special pre-treatment. Electrical resistant, solvent, silicone and PVC free.
Sikaflex 521UV replaces Sikaflex PU sealant 295UV and 291 when used for outside but NOT for Mineral-Glass bonding.