How to Choose the Right Release Liner (Complete Guide)

Glassine Release Paper for Hot Melt Adhesive Film

In hot melt adhesive film production, the performance of the release liner directly affects coating quality, processing efficiency, and final product performance.

Among all liner materials, glassine release paper is widely recognized as the most cost-effective and stable solution.

SANLIN NEW MATERIALS CO., LTD is a professional manufacturer of glassine release paper, and approximately 80% of hot melt adhesive film manufacturers in China use our products, proving their reliability in industrial production.

What Is Glassine Release Paper?

Glassine release paper is a super-calendered, high-density paper coated with silicone to provide controlled release properties.

Key Features:

  • Ultra-smooth surface
  • High density and strength
  • Stable release force
  • Good heat resistance (120–160°C)

These features make it ideal as a release liner for hot melt adhesive film coating.

Why Glassine Release Paper Is Used in Hot Melt Adhesive Film

1. Ensures Uniform Adhesive Coating

The smooth surface of glassine paper allows:

  • Even adhesive distribution
  • Consistent film thickness
  • Defect-free surface

2. Provides Stable Release Force

During production (coating → cooling → winding → slitting), unstable release force can cause:

  • Film separation
  • Coating defects
  • Production instability

Glassine release liners offer consistent and controlled release performance.

 

3. Balanced Performance Across All Stages

Different stages require different release characteristics:

Stage

Requirement

Coating

Medium-high release force

Slitting & transport

Stable medium release

Final lamination

Easy peel

The most commonly used range: 8–12 gf/25mm

4. Compatible with Multiple Adhesive Types

Glassine release paper works well with:

  • TPU hot melt adhesive film
  • PES hot melt adhesive film
  • PA hot melt adhesive film

Release force can be customized based on adhesive system and thickness.

5. Cost-Effective vs PET Film Liners

Compared with PET liners:

  • Lower cost
  • Sufficient heat resistance

Better cost-performance ratio

Key Factors When Choosing Release Liner for Hot Melt Adhesive Film

When selecting a release liner, consider:

✔ Release Force

Must match adhesive type and thickness.

✔ Surface Smoothness

Affects final film quality.

✔ Tensile Strength

Important for high-speed coating.

✔ Silicone Coating

Single-side or double-side depending on application.

✔ Temperature Resistance

Must withstand coating temperature.

Common Problems with Poor Release Liners

Using low-quality release paper may result in:

  • Silicone transfer
  • Unstable release force
  • Difficult peeling
  • Film defects
  • Production downtime

This directly impacts product quality and efficiency.

Why Choose SANLIN Glassine Release Paper?

Proven in Industrial Production

  • Widely used in hot melt adhesive film factories
  • Strong market validation

Stable Release Force

  • Consistent performance batch to batch
  • Suitable for high-speed production

Custom Solutions

  • Release force customization
  • Single / double silicone coating
  • Multiple grammage options

Industry Recognition

Around 80% of hot melt adhesive film manufacturers in China are using SANLIN glassine release paper, demonstrating strong reliability and performance.

 

FAQ – Hot Melt Adhesive Film & Release Liners

What release force is best for hot melt adhesive film?

Typically 8–12 g/in  is recommended for balanced performance across production and application. 

Base on different application and also has 60~80g/in ,80~100g/in ,200~300g/in .we can customized by customer ‘s requirement .

 

Is glassine paper better than PET liner?

For most applications, yes.
Glassine offers:

  • Lower cost
  • Good performance
  • Stable processing

PET is used only when higher temperature resistance is required.

 

Should I use single or double silicone coating?

  • Single-side: standard hot melt adhesive film
  • Double-side: special processes or anti-blocking needs

 

What grammage should I choose?

  • 60gsm → thin films
  • 80gsm → standard applications
  • 90gsm → heavy-duty industrial use

 

Can release force be customized?

Yes. It depends on:

  • Adhesive type
  • Thickness
  • Production conditions

 

Meet Us at interpack 2026

We will participate in interpack 2026 in Germany.

Düsseldorf
May 2026
Booth: 72D46-2

Welcome to visit SANLIN NEW MATERIALS CO., LTD and discuss your release liner solutions.

 

Get Samples for Testing

If you are looking for a reliable glassine release liner for hot melt adhesive film, we are ready to support you.

Contact us to get:

  • Free samples
  • Technical recommendation
  • Customized release solutions
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