Hesion in special-shaped part with no empty hollowing. applicable scope 1.Ram-cl membrane is recommended to apply in non-exposed roofs, underground waterproof projects, subways, tunnels and water channels. It is specially used in such constructions that no open fire is allowed to used. 2.Cement mortar is used to install ram-cl onto base, while self-adhesive is recommended to use between membrane sheets. product mechanism An ordinary hdpe film is single directional stretching film, waterproof membrane with this film is easily wrinkled when temperature change, even broken if heavy deformation. Hongyuan crossing-laminated hdpe filme is made by special formula. It overcomes shortcomings of ordinary film and have high tensile strength, solar stable and no bubbles. Besides, the longitudinal tensile strength of ordinary hdpe film is larger than its transverse tensile strength. While the longitudinal and transverse value of hongyuan ram-cl is equal, which enables the sheet has stronger adhesion on fasteners than ordinary membrane.