INDUSTRY COMPONENT

Release Liner

A protective backing layer used in silicone gasket manufacturing to prevent adhesion during storage and handling.

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Component Specifications

Definition
A release liner is a specialized paper or film substrate coated with a release agent, designed to protect pressure-sensitive adhesive surfaces of silicone gaskets during manufacturing, storage, and transportation. It provides a non-stick surface that allows easy removal without damaging the gasket's adhesive properties or structural integrity.
Working Principle
The release liner functions through a low-surface-energy coating (typically silicone-based) that creates a barrier between the adhesive surface of the silicone gasket and the liner itself. This coating reduces adhesion forces, allowing clean separation when the gasket is applied to its target surface. The liner maintains dimensional stability and protects against contamination.
Materials
Typically consists of a base substrate (kraft paper, polyethylene-coated paper, polyester film, or polypropylene film) coated with a release agent (silicone, fluorosilicone, or non-silicone formulations). Calendering may be applied for smoothness.
Technical Parameters
  • Caliper 50-200 gsm
  • Thickness 0.05-0.20 mm
  • Release Force 5-50 g/in (low to medium)
  • Tensile Strength ≥ 20 N/15mm MD
  • Temperature Resistance -40°C to +150°C
Standards
ISO 29862, DIN 55472

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Release Liner.

release liner silicone gasket backing protective paper adhesive liner industrial consumables gasket manufacturing Release Liner in Rubber and Plastic Product Manufacturing

Parent Products

This component is used in the following industrial products

High-Precision Silicone Gasket

Custom-molded silicone seal for industrial equipment.

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Engineering Analysis

Risks & Mitigation
  • Adhesive transfer to liner
  • Liner tearing during removal
  • Contamination from liner debris
  • Incompatibility with gasket adhesive chemistry
FMEA Triads
Trigger: Inadequate release coating uniformity
Failure: Partial adhesion of gasket to liner, causing tearing or deformation
Mitigation: Implement quality control with release force testing and visual inspection of coating
Trigger: Moisture absorption in paper-based liners
Failure: Reduced dimensional stability and curling, affecting automated handling
Mitigation: Use moisture-barrier coatings or switch to synthetic film liners in humid environments

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.01 mm thickness variation, ±5% release force consistency
Test Method
ASTM D3330 for peel adhesion, ISO 29862 for release force measurement

Buyer Feedback

★★★★☆ 4.7 / 5.0 (9 reviews)

"Found 11+ suppliers for Release Liner on CNFX, but this spec remains the most cost-effective."

"The technical documentation for this Release Liner is very thorough, especially regarding technical reliability."

"Reliable performance in harsh Rubber and Plastic Product Manufacturing environments. No issues with the Release Liner so far."

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Frequently Asked Questions

What is the primary function of a release liner in gasket applications?

To protect the adhesive surface of silicone gaskets from contamination, premature adhesion, and damage during handling and storage, while allowing easy removal during installation.

How do you select the appropriate release liner for high-precision silicone gaskets?

Selection depends on gasket adhesive type, required release force, environmental conditions (temperature/humidity), and compatibility with automated dispensing systems. Low-release-force liners are preferred for delicate gaskets.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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Reinforcing Filler Screw Shaft