High quality PU Sealant/adhesive ST8

Description ST8 is a one-component adhesive and sealing compound of permanent elasticity.It is based on a special moisture-cured polyurethane with an accelerated curing time. Uses High-speed railway,subway Waterproof for the underground constructions and tunnels Waterproof for toilet and basement Waterproof for the constrction base Advantages *Excellent adhesion with former cleaned sealant *Single Component, moisture-cured *Excellent performance,easy to use *High adhesion strengthwith all base materials *Fast cure rate. *Good weathering resistance and high durability. *No pollution *Can be painted Instructions for use Surface preparation Clean all dirty, dust, loose particles and paint.Joints can be cleaned by compressed air. The filling material in the joints must be polythene. Application *Stick protecting adhesive tape on both sides of the joints. *Insert filling materials. *Use the sealant with manual caulking gun or aerodynamic caulking gun. Horizontal seal can be finished by spatula. *Smooth with synthesized cleaner mixed by clean water if necessary. *Tear off the protecting adhesive tape befor the sealant is curing. *Clean all the tools after operating. The curing materials can be only cleaned by machinery methods. Technical Data (Typical) Colours Gray,White,Black Density1.20-1.40kg/LSkinning time30-120mins, depending on weatherCuring Speed≥2MM/24hHardness,Shore A40±5Sagging <3mmSolid content>97%Tensile Strength≥5.0 MpaElongation at break>200% Tearing Strength>18N/mm Application Temperature 5-40Service Temperature-40- +80(maximum 50 in hot water)Shelf life9 months stored dry below 30 unopened in original containers Packaging : 400ml or 600ml unipac per carton of 20. 5gal/bucket,55gal/bucket