200‑1200g Pe Pp Composite Waterproof Membrane Direct Supply From Manufacturer

Product Introduction

Polyethylene‑polypropylene (PE‑PP) polymer composite waterproof membrane is a polymer waterproof sheet manufactured by one‑step extrusion composite forming process, with modified polyethylene as the core waterproof layer laminated with high‑strength polypropylene non‑woven fabric on both top and bottom sides.

The three‑dimensional mesh pores formed on the non‑woven fabric surface enable interlocking and integral curing with cement mortar. Common specifications cover thickness from 0.6‑1.5 mm, width 1‑1.2 m, and roll length 50‑100 m. It is widely applied in building waterproofing and anti‑seepage projects such as roofs, basements, bathrooms, water tanks and utility tunnels.

Technical Requirement

Core Advantages for Basement Floor Slab

1. Suitable for permanent concealed projects with extra‑long service life The basement floor slab is a permanent concealed building project that sets strict requirements for the durability of waterproof materials. The polymer polypropylene membrane delivers outstanding resistance to harsh underground conditions and maintains stable performance for long‑term buried application. It will not suffer aging, pulverization, cracking or leakage. Its waterproof service life can reach several decades, meeting the lifelong waterproofing requirements of building structures and eliminating repeated repair problems of floor slab waterproofing.
2. Powerful high‑pressure impermeability against groundwater soaking and penetration The basement floor slab stays in a harsh environment of long‑term groundwater immersion and high‑water‑pressure penetration, serving as the key weak point of building waterproofing. The dense polymer core layer of this membrane efficiently blocks high‑pressure groundwater penetration. Its integrally‑composited structure leaves no leakage dead corners, continuously resisting erosion from groundwater and soil moisture. It effectively prevents engineering hazards such as floor slab seepage, wall mildew and foundation damp‑induced settlement.
3. Flexible deformation resistance to adapt to foundation settlement Building foundations are subject to slight settlement and telescopic deformation all year round, which easily causes cracking and damage to traditional rigid waterproof materials. Featuring excellent flexibility and toughness, this membrane can follow slight stretching and settlement of the foundation base, effectively buffering tensile force caused by deformation and avoiding tearing damage of the waterproof layer. It perfectly adapts to dynamic foundation deformation of basement floor slabs and guarantees long‑term stability of the waterproof system.
4. Suitable for damp and confined working conditions with safe and efficient construction Basement floor slab construction features confined space, poor ventilation and permanently damp base surfaces. Traditional hot‑melt membranes bring open‑fire safety risks and cannot work on damp substrates. Adopting dedicated cold wet‑laying technology, this product requires neither substrate drying nor hot‑work operations. It enables risk‑free construction, perfectly fits damp and confined basement environments, and greatly improves construction efficiency and project acceptance rate.
5. Integral forming prevents water channeling and eliminates concealed leakage Targeting hidden water channeling and concealed leakage of basement floor slabs, the membrane interlocks fully with cement structures after installation to form an integrated waterproof system. No gaps or water‑channeling passages exist between the waterproof layer and the base, local water seepage and concealed water channeling, thus providing more thorough and long‑lasting waterproof protection for floor slabs.
6. Resistance to underground corrosion and mildew for complex underground environments Underground soil and groundwater often contain acid‑alkali corrosive substances that erode ordinary waterproof materials. The polymer polypropylene membrane shows excellent acid‑alkali resistance, corrosion resistance and mildew resistance. It resists corrosion and mildew deterioration under long‑term burial, and maintains intact waterproof performance in the complex underground environment with constant dampness and high corrosion, satisfying requirements of permanent underground waterproof projects.