Anti Seepage HDPE Waterproofing Membrane For Municipal Pipe Gallery

Hdpe Anti-seepage Membrane For Municipal Pipe Gallery

Product Description

HDPE Non‑asphalt Self‑adhesive Film Waterproof Membrane uses high‑density polyethylene (HDPE) polymer sheet as base material, composited with polymer self‑adhesive layer and release film. It is a pre‑laid reverse‑bonding waterproof material. Pre‑laid on bedding layer, it bonds tightly with post‑poured concrete, integrating waterproof layer with concrete structure to eliminate water‑channeling risk. Without asphalt component, it avoids aging and migration problems of asphalt‑based materials.

Product Advantages

1. Pre‑laid reverse‑bonding to prevent water channeling, tightly bonded with post‑poured concrete.
2. HDPE substrate features high tensile strength and excellent puncture resistance against damage from steel bars and gravel.
3. Cold‑applied construction without open flame. Workable on damp substrates, safe for confined underground space.
4. Non‑asphalt formula, good resistance to acid, alkali and underground water‑soil corrosion, outstanding long‑term durability.
5. Simplify construction procedures, partial cement mortar protection layer can be omitted, shorten project cycle and cut total cost.

Application Scenarios

Designed for pre‑laid reverse‑bonding waterproofing of underground projects. ‑ Construction: basement bottom plates, underground garages, inner‑applied side walls for external waterproofing ‑ Rail transit: subways, tunnels and caverns ‑ Municipal works: utility tunnels and underground structures ‑ Special projects: civil air‑defense underground works

Note: Not for exposed application, not suitable for exposed roof.