LDPE Release Film Technical Specification

LDPE Release Film Technical Specification

 

Product Overview

LDPE Release Film is a low-density polyethylene film engineered with a precision release coating for industrial applications requiring controlled adhesion separation. This flexible, durable film combines the inherent benefits of LDPE—including excellent conformability and chemical resistance—with specialized surface treatments to enable clean release from adhesives, resins, and composite materials.

Key Features & Benefits

Material Properties

Base Material: High-purity LDPE resin (FDA-compliant grades available)

 

Thickness Range: 30–200 microns (±3% tolerance)

 

Release Coating Options:

 

Silicone (platinum or peroxide-cured)

 

Silicone-free (acrylic or fluoropolymer)

 

Surface Energy: 20–24 dynes/cm (coated side)

 

Performance Characteristics

Controlled Release Performance

 

Peel force range: 10–300 g/25mm (adjustable)

 

Residue-free separation (<0.05% transfer)

 

Consistent release across temperature variations

 

Thermal Stability

 

Continuous use: -30°C to +120°C

 

Short-term exposure: Up to 150°C

 

Mechanical Properties

 

Tensile strength: ≥18 MPa (MD/TD)

 

Elongation: ≥400%

 

Tear resistance: ≥50 N/mm

 

Optical Clarity

 

Light transmission: >90% (clear grades)

 

Haze: <5%

 

Industrial Applications

Composite Manufacturing:

 

Prepreg layup and curing

 

Vacuum bagging processes

 

RTM molding release

 

Adhesive Products:

 

PSA tape and label liners

 

Self-adhesive material protection

 

Specialty Uses:

 

Medical device packaging

 

Flexible electronics processing

 

Graphic arts protection

 

Quality & Compliance

ISO 9001:2015 certified manufacturing

 

FDA 21 CFR 177.1520 compliance (food contact grades)

 

RoHS/REACH compliant

 

UL Recognition available

 

Technical Advantages

✔ Excellent conformability to complex shapes

✔ Superior chemical resistance to resins and solvents

✔ Customizable release force for specific applications

✔ Cost-effective alternative to PET release films

 

Storage & Handling

Store at 15–25°C in original packaging

 

18-month shelf life under proper conditions

 

Process in clean environments for optimal performance

 

Available in custom widths, lengths, and release formulations.