Product Overview
HDPE Cross Laminated Film-60B is a high-strength functional film produced from high-density polyethylene through multi-layer co-extrusion, multi-direction stretching, 45° rotary cutting, and cross lamination technology.
Two or more stretched film layers are laminated at a 45° crossing angle to form a bidirectional reinforced mesh structure. This results in:
- Balanced strength in machine direction (MD) and transverse direction (TD)
- Excellent dimensional stability
- High tear and puncture resistance
- Improved deformation resistance under load
The film is specially suited for asphalt waterproof membranes and synthetic roofing underlayment, enhancing durability and reliability in roofing applications.
Problem: Why Ordinary PE Film Fails in Roofing Applications
Traditional PE films often encounter problems when used in roofing membranes:
- Tears or punctures during installation
- Membrane deformation or bubbling
- Shrinkage under heat
- Reduced durability in outdoor conditions
Such issues compromise waterproof performance, membrane longevity, and structural stability.
Cause: Single-Direction Film Structures Cannot Handle Stress
Ordinary films lack cross-direction reinforcement. Stress applied during installation or under environmental load is concentrated in one direction, leading to:
- Edge tearing
- Crack propagation
- Reduced puncture resistance
- Dimensional instability
- Shorter service life
Solution: 45° Cross Laminated Reinforcement
Our HDPE Cross Laminated Film uses a 45° cross-lamination structure that evenly distributes stress in both MD and TD directions.
Advantages for Roofing Applications
- Enhances asphalt membrane tensile strength
- Prevents bubbling and surface deformation
- Improves tear and puncture resistance
- Maintains dimensional stability under temperature variations
- Supports long-term outdoor durability
Specifications
| Property | Value |
|---|
| Thickness | 0.10 ± 0.01 mm |
| Width | 940 ± 5 mm |
| Roll Length | 2000 ± 100 m |
| Colors | Black, White, Blue, Green |
| Surface Treatment | Double-side Corona ≥42 dyn |
| Lamination Type | Solvent-free |
Technical Data Sheet
| Property | Value |
|---|
| Tensile Strength | ≥50 N/mm² |
| Elongation at Break | ≥200% |
| Tear Strength | ≥300 N/mm |
| Puncture Strength | ≥200 N |
| Interlayer Peel Strength | ≥4 N/25mm |
| Heat Shrinkage (80°C, 2h) | ≤2% |
Application Scenarios
Asphalt Waterproof Membranes
Used as reinforcement in asphalt waterproof membranes to improve:
- Tensile strength
- Tear and puncture resistance
- Surface stability
- Long-term durability under outdoor conditions
Synthetic Roofing Underlayment
Provides a strong, dimensionally stable base layer for synthetic roofing underlayment:
- Prevents stretching and shrinkage
- Enhances membrane strength
- Resists mechanical damage during installation
- Supports durable roofing systems
How It Works
- Multi-layer co-extrusion blown film
- Multi-directional stretching
- 45° rotary cutting
- Cross-angle lamination
- Solvent-free bonding
This structure distributes stress across both MD and TD directions, reducing tearing and improving stability.
How To Choose
For Asphalt Membranes
- Select higher tensile strength for heavy traffic or roof slope
- Low shrinkage recommended for heat-resistance
For Synthetic Underlayment
- Choose 0.10–0.12 mm thickness for standard roofing
- Optional UV-resistant or dual-color film for outdoor durability
FAQ
Q1: Can this film be used in both asphalt and synthetic roofing membranes?
Yes, the cross-laminated HDPE film is optimized for both applications.
Q2: What thickness is recommended for roofing underlayment?
Standard thickness: 0.10–0.12 mm. Custom thickness available for specialized applications.
Q3: Does the film resist tearing and puncture during installation?
Yes, the bidirectional cross-laminated structure improves tear and puncture resistance significantly.
Quality Assurance
- Full appearance inspection
- Performance testing every 4 rolls/lots
- Roll traceability system with unique identification code
Contact Us
HDPE Cross Laminated Film for Asphalt Waterproof Membranes or Synthetic Roofing Underlayment:
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