Polyethylene–Polypropylene (PET) Polymer Waterproofing Membr
Product Overview
The Polyethylene–Polypropylene (PET) polymer waterproofing membrane is manufactured using an advanced automated production line with a one-step co-extrusion process. It is composed of high-quality polyethylene, high-strength non-woven polypropylene (or polyester) reinforcement fabric, UV stabilizers, anti-aging agents, and other premium polymer additives.
The membrane features a reinforced central core that serves as both the primary waterproofing and anti-aging layer. Its upper and lower surfaces are designed as strong bonding layers, ensuring excellent adhesion to substrates. This structure prevents edge lifting, blistering, and delamination, delivering long-term stability and durability.
As a dual-layer waterproofing system, it represents a new generation of high-performance waterproofing materials designed for demanding construction environments.
Product Specifications
- Weight: 200 g/m² – 1200 g/m²
- Width: 1200 mm / 1500 mm
- Length: 50 m / 100 m per roll
- Colors: Customizable according to customer requirements
Application Scope
This product is widely used in a variety of waterproofing and infrastructure projects, including:
- Roof waterproofing for residential and industrial buildings
- Basement and underground structure waterproofing
- Water reservoirs and hydraulic structures
- Municipal engineering projects
- Bridges, subways, and tunnels
- Dams and other critical infrastructure works
It is especially recommended for projects requiring high durability, superior corrosion resistance, and excellent resistance to structural deformation.
Product Features
Environmentally Friendly & Safe
Excellent Anti-Aging & Anti-Corrosion Performance
Excellent Anti-Aging & Anti-Corrosion Performance
Our waterproofing membrane is non-toxic, odorless, and environmentally safe. It fully complies with GB/T 17219-1998 Standard for Safety Evaluation of Equipment and Protective Materials in Drinking Water Systems, ensuring safe use in residential, commercial, and water-related applications.
Excellent Anti-Aging & Anti-Corrosion Performance
Excellent Anti-Aging & Anti-Corrosion Performance
Excellent Anti-Aging & Anti-Corrosion Performance
Engineered with advanced anti-aging additives, the membrane offers outstanding resistance to oxidation, corrosion, and long-term environmental wear. It features excellent flexibility and high tensile strength, allowing it to bend without cracking and resist punctures under stress.
Complies with GB/T 18173.1-2012 (Polymer Waterproofing Materials – Part 1: Waterproofing Sheet) and delivers a service life comparable to the building structure itself. When buried in soil or sand, it does not decay or weather over time. Laboratory testing confirms:
- No cracking at -40°C
- No deformation at +100°C
Easy Installation in Damp Conditions
Excellent Anti-Aging & Anti-Corrosion Performance
Easy Installation in Damp Conditions
The membrane can be applied on moist substrates as long as there is no visible standing water. Even after heavy rain, surfaces only require simple cleaning or water removal, allowing for fast and efficient installation without delays
High Flexibility & Adaptability
Fast Construction & High Efficiency
Easy Installation in Damp Conditions
The material is highly flexible and easy to fold, bend, and install. It is ideal for complex waterproofing areas such as kitchens, bathrooms, swimming pools, and water tanks.
No special treatment is required for internal or external corners and pipe junctions, allowing straight-angle construction. This reduces installation errors and ensures a reliable secondary waterproofing seal after tile installation.
Fast Construction & High Efficiency
Fast Construction & High Efficiency
Fast Construction & High Efficiency
No surface roughening or complex substrate treatment is required for walls in kitchens, bathrooms, pools, or water tanks. Tiles can be applied directly onto the membrane, significantly reducing labor time and overall construction cost.
Polymer Cement Bonding System
Fast Construction & High Efficiency
Fast Construction & High Efficiency
The matching polymer cement adhesive is an eco-friendly material made from proprietary polymer binders mixed with cement. It provides:
- Strong bonding performance
- Additional waterproofing protection layer
- Effective sealing of substrate pores
- Reduced requirements for base surface preparation
- Improved leveling capability
Installation Method
Seam Treatment Guidelines
Seam Treatment Guidelines
Standard Installation Procedure
Surface Inspection → Substrate Cleaning → Cement Adhesive Preparation → Base Layer Application → Membrane Installation → Protective Layer Application → Curing
Bonding Process
- Pre-lay and align the membrane
- Fold both ends of the membrane
- Apply cement adhesive evenly using a trowel
- Lay the membrane forward while pressing out trapped air and excess adhesive
- Ensure a minimum bonding rate of ≥85% between membrane and leveling layer
Seam Treatment Guidelines
Seam Treatment Guidelines
Seam Treatment Guidelines
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Roof Waterproofing
- Use overlapping seams for vapor barrier, waterproof layer, and additional layer
- Apply cement adhesive with 10 cm overlap width
- Stagger additional layer seams from waterproof layer by at least 5 cm
Basement Waterproofing
- Use 10–15 cm overlap with cover strips
- Bond cover strips using polymer seam adhesive
General Overlap Requirements
- Long edge overlap: 8–10 cm
- Short edge overlap: 10–15 cm
- Stagger adjacent short sides by at least 10 cm
- Wall-to-floor junctions should be staggered by 30 cm
Protective Layer
Seam Treatment Guidelines
Protective Layer
After installation, apply a 2 cm cement mortar protection layer using a 1:2.5 mix ratio. Construction should be completed in two stages, with joints staggered by more than 20 cm for added strength. The surface should be smoothly finished and properly water-cured to ensure durability.
Quality Standard
Manufactured and tested in accordance with GB/T 18173.1-2012, ensuring consistent quality, durability, and long-term waterproof performance.
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