Sika Sikaflex 521 UV

Hybrid adhesives and sealants, powerful without primer. Perfect for the following applications: outdoor sealing. Hybrid adhesives often do not require a primer, which shortens installation time. They have excellent resistance to UV rays and are free from solvents and VOCs. Suitable for use on many substrates such as aluminum, stainless steel, polyester, glass, etc. The application temperature ranges from 5 to 35 degrees Celsius, and the skin formation time is 30 to 40 minutes.