COMENS is the first and biggest supplier of expansion joint sealant in the engineering of China high speed railway infrastructure construction.
What we were supplying to this project is Two-component Polyurethane Sealant. To be specific, there are two product: self leveling liquid is more suitable for almost horizontal joint, thixtropic paste is more suitable for joint with slope. The products are of high elongation and movement ability, UV stable, aging resistant. And they are environmental friendly, safe to health.