Underground Foundation
Perfect for basement slabs, pile heads, and heavy-duty foundation waterproofing.
HDPE Membrane Surface
Production Line
Polymer Membranes
Self-Adhesive Pre-Applied HDPE Waterproof Membrane
Professional-grade HDPE pre-applied waterproofing membrane for underground engineering. Forms a permanent chemical and mechanical bond with post-cast concrete to eliminate water channeling.
HDPE SubstrateEN Standard Certified1.2mm / 1.5mmPre-Applied SystemFoundation ExpertOEM Available
Standard
EN 13967 / GB/T 23457
Thickness
1.2mm, 1.5mm
Roll Size
1.0m or 2.0m × 20m/roll (Customizable)
Send thickness, surface material, quantity, and destination port for a fast quote.
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Quick Specifications
Product Type
Self-Adhesive Pre-Applied HDPE Membrane
Standard
EN 13967 / GB/T 23457
Structure
HDPE film + Polymer self-adhesive film + Protective layer
Thickness
1.2mm, 1.5mm
Width
1.0m or 2.0m
Length
20m/roll (Customizable)
Lap Area
70mm reserved synthetic adhesive lap area
Application
Underground engineering, basements, foundations
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Product Overview
Advanced Pre-Applied Waterproofing System
Self-adhesive pre-applied HDPE waterproof membrane is a high-performance solution engineered specifically for critical underground structures. By utilizing a high-density polyethylene film combined with a reactive polymer self-adhesive layer, it provides an impenetrable barrier that integrates directly with the concrete foundation.
Favored for its extreme puncture resistance and zero lateral water migration, this system is ideal for subways, deep basements, and civil infrastructure in high-water-table regions. As a dedicated manufacturer, Tianyuan provides EN-standard tested HDPE membranes with full OEM support and project-specific technical documentation.
Quick Facts
Pre-Applied Bonding
Designed to be installed before concrete pouring, forming a gap-free bond with the structural concrete.
Anti-Water Channeling
Eliminates lateral water migration between the membrane and the concrete structure, ensuring zero leak risk.
Self-Healing Layer
The polymer self-adhesive layer provides self-healing properties for small punctures during construction.
Heavy-Duty HDPE
Uses high-density thermoplastic polyethylene as the core substrate for maximum puncture and chemical resistance.
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Applications
Blind-Side Walls
Ideal for retaining walls and subway stations where one-sided waterproofing is required.
Tunnels & Culverts
Provides a reliable anti-seepage barrier for cut-and-cover tunnels and municipal works.
High-Water-Table Areas
Recommended for projects in regions with high groundwater levels requiring extreme bonding reliability.
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Key Benefits
Permanent Chemical Bond
Reactive bonding layer cross-links with the concrete slurry to create a monolithic waterproofing system.
Excellent Dimensional Stability
Maintains its shape and performance under extreme soil pressure and thermal fluctuations.
Safe & Fast Construction
Cold-applied installation with easy self-adhesive overlaps, requiring no specialized heating equipment.
Corrosion Resistance
Superior resistance to acids, alkalis, and salts commonly found in underground environments.
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Technical Data
| Test Item | Unit | Test Method / Standard | Requirement / Class | Result / Notes |
|---|---|---|---|---|
| Tensile Strength (L/T) | N/50mm | EN 12311-2 | >=800 | Pass (850+) |
| Elongation at Break (L/T) | % | EN 12311-2 | >=500 | 550%+ |
| Watertightness | kPa | EN 1928 | 60kPa, 24h | Passed |
| Resistance To Impact | mm | EN 12691-B | 600mm | Passed |
| Joint Peel Resistance | N/50mm | EN 12317-2 | >=400 | Qualified |
| Resistance To Alkali | >= | EN 1847 | 60kPa, 24h | No Leakage |
| Visible Defects | >= | EN 1848-2 | None | No visible defects |
The above values are typical reference values from laboratory tests and do not constitute a warranty. Full TDS is available on request.
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Installation Guide
Base Preparation
Prepare a smooth, dense surface. Remove any sharp protrusions or standing water.
Membrane Positioning
Unroll the HDPE membrane with the self-adhesive layer facing the concrete pour direction.
Layout & Lap
Provide 70mm overlaps using the reserved adhesive edge or specialized tapes.
Seam Sealing
Press overlaps firmly using a roller to ensure a continuous and watertight seal.
Rebar Installation
Install steel bars directly over the protected membrane after inspection.
Concrete Pouring
Pour the concrete structural layer; ensure it fully contacts the adhesive surface.
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Packaging & OEM
Protective Roll Packing
Supplied in heavy-duty rolls with core sleeves to prevent deformation during transit.
Branding Support
Custom roll labels with your brand logo, batch numbers, and specifications available.
Efficient Loading · Secure Packing · Global Delivery
Standard
EN 13967 Certified
Container Load
Approx. 10,000 - 12,000 sqm per 20FT container
Thickness Options
1.2mm and 1.5mm standard
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Downloads
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FAQ
How does pre-applied HDPE prevent water channeling?
The reactive polymer layer chemical bonds with the liquid concrete as it cures, creating a monolithic seal that prevents water from traveling between layers.
Can I install reinforcement steel directly on the membrane?
Yes, the HDPE substrate and its protective layer are designed to withstand the stress of rebar installation and concrete pouring.
What are the overlap methods for HDPE?
We offer both self-adhesive lap areas and hot-air welding options, depending on the specific underground environment and project requirements.
Ready To Start Your Project?
Contact our team for competitive quotations and technical support.