Non-woven textile surface single side butyl tape is ready for despatching.

Black color expansion hydrophilic polyurethane sealant for structural joint is ready for despatching.

Beneath the bustling streets and serene landscapes lie the tunnels that form the backbone of modern infrastructure. These engineering marvels, while critical, are vulnerable to the elements. Chief among these is water, which can infiltrate and compromise the structural soundness of tunnels. Welcome