产品介绍：
Product Introduction: The waterproof board for railway tunnels is produced by using a special formula of virgin resin through a flat extrusion process. It is a product with waterproof and anti-seepage functions.
Product specifications: Thickness 1.5-3.0mm, width 2-4m, length according to engineering design.
Product features: 1. Good elasticity, with excellent flexural and flexible properties, and good low-temperature bending resistance;
2. It has excellent anti-seepage and high barrier properties, good bonding performance and is convenient for construction.
3. Excellent resistance to chemical corrosion, acid and alkali, and weather.
Application scope: Mainly used in important waterproofing projects such as subway tunnels. It is used for waterproofing and anti-seepage projects in tunnels, subways, basements, roofs, etc., and is particularly suitable for waterproofing projects on the inner surface of arch roofs.