This is a water stop material used in construction, embedded in the structure. There are 2 boxes. Regular price: ¥22,800 20m per box Water stop material made of bentonite and asphalt It combines the adhesive and impermeable properties of asphalt with the self-sealing properties of bentonite. Compared to C-31, it suppresses the swelling speed, so there is no collapse due to rain after construction, and it maintains its water stop performance. Therefore, special curing after construction is no longer necessary. Because it uses bentonite, an inorganic clay mineral, its quality and function will not deteriorate semi-permanently. It maintains moderate softness and has a mesh as a reinforcing material, so it has excellent workability without stretching or sagging during storage and construction. We recommend applying Kuniseal Bond. Model: AB-2505 Application: Concrete joint (vertical and horizontal surfaces), around H-beams, around pipes Size: W25mm x T5mm x L5000m Quantity: 20m (5m x 4 pieces) Manufacturer: Kunimine Kogyo Co., Ltd.