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Release Liner Component – Rubber and Plastic Product Manufacturing

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.

Parent Products

This component is used in the following industrial products

High-Precision Silicone Gasket

Custom-molded silicone seal for industrial equipment.

View Product Details

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

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation

4/5

Manufacturing capability

4/5

Inspection readiness

5/5

Supplier transparency

3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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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.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Release Liner