PP & PA Release Film - High Strength Puncture Resistant Barrier Release Film with Customizable Release Force

PP & PA Release Film is a high-performance composite release film designed for applications requiring stronger mechanical performance, better barrier protection, and stable release properties.

Compared with traditional PP release film, PP & PA Release Film introduces a PA (Polyamide) reinforcement layer to improve tensile strength, puncture resistance, moisture barrier performance, and oil resistance.

The PP layer provides stable release performance and smooth peeling characteristics, while the PA layer enhances the overall strength and barrier properties of the film.

This combination makes PP & PA Release Film an ideal solution for demanding applications including self-adhesive waterproof membranes, butyl tapes, industrial adhesive products, electronic die cutting materials, and functional adhesive components.

Traditional PP Release Film provides good flexibility, stable release performance, and cost advantages. However, in some high-performance applications, customers may experience:

1. Film Breakage During Processing

For high-tack adhesives or thick adhesive systems, standard PP release film may not provide sufficient mechanical strength.

Potential problems include:

• Film tearing during peeling
• Puncture damage during processing
• Adhesive contamination
• Production interruption

2. Limited Barrier Protection

For waterproof membranes and adhesive materials, moisture, oil migration, and environmental exposure may affect long-term product stability.

A higher barrier release film is required to protect adhesive performance.

3. Poor Resistance to Heavy-Duty Applications

When used with:

• High viscosity adhesive
• Thick adhesive layers
• Butyl waterproof materials

higher tensile strength and puncture resistance are required.

PP & PA Release Film solves these problems through the combination of PP release performance and PA barrier reinforcement.

High Strength and Puncture Resistance

The PA reinforcement layer improves mechanical strength and durability.

Compared with pure PP release film:

• Higher tensile strength
• Better tear resistance
• Improved puncture resistance

The puncture resistance performance is more than 50% higher than pure PP release film.

Stable Release Performance

A reliable release film must provide consistent peeling performance.

UPASS PP & PA Release Film provides:

• Customized release force
• Smooth peeling
• Low silicone transfer
• Reduced adhesive contamination

Release force options:

Better Moisture and Oil Barrier Performance

The PA layer improves barrier properties against:

• Water vapor
• Oil migration
• Environmental influence

Compared with ordinary PP and PE release films, PP & PA Release Film provides improved moisture barrier performance.

Flexible Alternative to PET Release Film

Compared with PET release film:

PP & PA Release Film provides:

• Better flexibility
• Less brittleness
• Better handling performance

Although PET provides higher temperature resistance, PP & PA offers better flexibility for applications requiring repeated bending or softer handling.

PP & PA Release Film is widely used as a release layer for self-adhesive waterproof membranes.

Advantages:

• Protects adhesive layer before installation
• Provides stable peeling performance
• Improves storage reliability
• Resists puncture during transportation

Applications:

• Self-adhesive waterproof membrane
• Bitumen waterproof membrane
• Roofing waterproof materials

For butyl adhesive applications, release film needs strong protection and reliable release performance.

PP & PA Release Film helps:

• Protect adhesive surface
• Improve installation efficiency
• Maintain adhesive quality

Suitable for:

• High tack industrial tapes
• Double-sided adhesive tapes
• Automotive sealing tapes

The high-strength structure helps prevent film damage during converting and application.

Applications:

• Thermal conductive silicone sheets
• Foam adhesive materials
• Waterproof adhesive components

PP & PA Release Film provides stable processing performance for precision converting.

Applications include:

• Battery sealing adhesive
• Photovoltaic auxiliary materials
• Medical adhesive products

Different adhesive systems require different release forces.

Confirm whether the application requires:

• Room temperature processing
• Heat lamination
• High temperature processing

Temperature requirements determine suitable film selection.

PP & PA Release Film is recommended when customers experience:

• Release film breakage
• Puncture damage
• Adhesive contamination
• Moisture-related adhesive problems

PP & PA Release Film is a composite release film combining polypropylene and polyamide materials to provide stronger mechanical performance and improved barrier protection.

PP & PA Release Film provides higher tensile strength, better puncture resistance, and improved moisture barrier performance compared with standard PP release film.

Yes. It is especially suitable for self-adhesive waterproof membranes, butyl waterproof tapes, and construction adhesive applications.

Yes. UPASS provides customized release force options according to different adhesive systems.

Yes. The reinforced PA layer makes it suitable for high-tack adhesives, thick adhesive systems, and demanding industrial applications.

PP & PA Release Film is a high-performance upgrade solution compared with traditional PP release film.

By combining PP's stable release characteristics with PA's reinforcement and barrier properties, it provides:

• Higher strength
• Better puncture resistance
• Improved moisture barrier
• Stable peeling performance
• Better protection for adhesive materials

For waterproof membranes, butyl tapes, industrial adhesives, electronic materials, and functional applications, PP & PA Release Film provides a reliable solution for customers requiring higher performance and longer product stability.

UPASS offers customized PP & PA Release Film solutions with flexible options for thickness, width, silicone coating, release force, and surface treatment.