Chemical adhesive waterproof sheet "Fit Liner"

Waterproof sheets for tunnels with a watertight structure! Heat welding is also possible, adapting to various conditions.

"Fitliner" is a chemically adhesive waterproof sheet developed for water-tight (non-drainage) tunnels using the New Austrian Tunneling Method (NATM). By chemically bonding the surface of the waterproof sheet with the lining concrete, it prevents water leakage from damaged areas of the waterproof sheet from spreading. Additionally, made from flexible and highly stretchable EVA resin, it conforms well to uneven sprayed surfaces. With a thickness of 2.0 mm, it withstands high water pressure and excels in heat welding on-site. 【Features】 ■ The special surface EVA resin chemically bonds with the concrete ■ Prevents water leakage from wandering at the interface between the waterproof sheet and the lining concrete, stopping it from spreading extensively ■ Compatible with heat welding to standard tunnel waterproof sheets ■ The signal layer is laminated, making it easy to detect damaged areas during construction *For more details, please refer to the PDF document or feel free to contact us.

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