Key Highlights of Polyester Release Liner
1. Excellent Temperature Resistance: Stable performance in high-temperature processes.
2. Super Flatness & Dimensional Stability: Ensures precise die-cutting and processing.
3. Outstanding Release Force Control: Options from ultra-light to medium-heavy release.
4. Wide Compatibility: Suitable for various pressure-sensitive tapes, labels, and composite materials.
5. Eco-friendly & Durable: Reusable, reducing waste.

- Film color: transparent, milky white, white opaque, red, blue, green, yellow etc.
- Film thickness: 0.012-0.25mm
- Film width: 0.05-2.7m width can be customized according to customers' requirements.
Performance Parameters
|
Temperature Range |
-40°C to 200°C (short-term up to 230°C) |
|
Tensile Strength |
Machine Direction (MD) ≥180MPa, Cross Direction (CD) ≥180MPa |
|
Elongation at Break |
MD ≥100%, CD ≥100% |
|
Light Transmittance |
≥88% |
|
Thermal Shrinkage |
≤1.5% (150°C, 30 minutes) |
Technical specifications table
|
Parameter |
Specification |
|
Base material type |
PET polyester film |
|
Common thickness |
23μm, 36μm, 50μm, 75μm, 100μm, 125μm |
|
Release side |
Single sided / double sided |
|
Release force range |
Ultra-light Release (1-5g), Light Release (5-20g), Medium Release (20-100g), Heavy Release (100-200g) |
|
Surface finish |
Glossy, matte (upon request) |
|
Standard width |
500mm, 1010mm, 1260mm, 1550mm (Custom widths available) |
|
Core inner diameter |
3 inch (76mm), or 6 inch (152mm) |
|
Packaging |
Wrapped in clean paper/plastic, on wooden pallets with moisture barrier |
Key Advantages
- Consistent Release Force: Smooth peeling, no residue, stable batch performance.
- High Clarity & Heat Resistance: Great optical transparency, withstands high processing temps.
- Strong Mechanical Strength: Dimensional stable, anti-deformation, perfect for die cutting.
- Full Customization: Adjustable thickness, width, release force and roll size.
- Chemical & Moisture Proof: Long shelf life, adapts to harsh environments.
Main Applications
Adhesive tapes, labels, die-cut parts, electronics, automotive, medical supplies, industrial lamination








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