for the primary sealing of the insulating glass outstanding adhesion to aluminum and glass good vapour resistance.

Specifications

1: for the primary sealing of the insulating glass 2: outstanding adhesion to aluminum and glass 3: good vapour resistance.  Technical index Color                       black Heat resistance      Non-dusting, non-hardening, non-loss of adhesion and non-decomposition in      successive 30 hour use between minus 40°C and plus 130°C, the highest temperature it can endure being 175°C.Specific gravity        1.20-1.30g/cm3Shear strength(aluminum –glass)         above 0.15mpaTensile strength (aluminum –glass)      above  0.80mpaUltraviolet irradiation                              168h,no fog.

butyl sealant