Silicone Coated PET Release Film

Clear Adhesive Film Company is a manufacturer of Silicone Coated PET Release Film made with PET base film and controlled silicone release coating. This siliconized PET film supports stable peeling, clean separation and roll-to-roll processing for labels, adhesive tapes, medical adhesive materials, electronics converting and precision die-cutting. Common thicknesses include 23 um, 36 um, 50 um, 75 um and 100 um, with single side or double side silicone selected by release level, coating side and actual adhesive test results.

Product Overview

This PET release liner is used when an adhesive layer needs a smooth, flat and dimensionally stable carrier during coating, lamination, slitting, die-cutting, rewinding or final assembly. For a clearer distinction between the facestock, adhesive, release coating, and liner substrate, see the definition of a release liner in a self-adhesive laminate. It is not a PE liner or paper liner. After liner removal, the base-film identity, coating structure and contamination condition determine whether the waste can enter a specialist PET release liner recycling workflow. The polyester base gives better clarity, lower moisture influence and cleaner handling through tension control, precision cutting and repeated rewinding.

Thickness should match adhesive structure and handling. 23 um is used for thin labels and compact laminates. 36 um and 50 um are common for PSA labels, adhesive tapes and standard kiss-cutting. 75 um and 100 um provide more stiffness for double-sided tapes, foam tapes, medical adhesive layers, electronics converting and die-cut parts that need stable stripping or transfer.

The silicone release coating can be adjusted for light, medium or strong release. Typical references are 3-10 g/25mm for light release, 10-30 g/25mm for medium release and 30-80 g/25mm for stronger release, depending on adhesive chemistry and test method. For repeat orders, release force should be checked with actual adhesive, dwell time, peel angle and storage condition.

Product Photos

Benefits

Controlled peeling reduces liner breakaway, uneven unwinding and adhesive pick-up.
Clear PET base film makes coating marks, particles, bubbles and defects easier to inspect.
Single side silicone coating suits labels, one-side tapes and PSA protection.
Double side silicone coating supports transfer adhesives, double-sided tapes and multi-step lamination.
PET dimensional stability helps keep registration during slitting, kiss-cutting and die-cutting.
SAS checks and silicone transfer inspection help confirm performance before larger runs.

When Should Double Side Silicone Coated PET Release Film Be Selected?

Double side silicone coated PET release film is useful when both liner surfaces must separate cleanly during coating, laminating, rewinding or die-cutting. It is often selected for double-sided tapes, transfer adhesives, medical adhesive layers and multi-step electronics converting, where blocking or adhesive pick-up can create roll handling problems. Each side should be confirmed by adhesive tack, coating weight, lamination pressure, peeling direction and winding direction.

TDS

Item	Typical Value
Product Type	Silicone coated PET release film
Base Film	Clear PET / polyester film
Thickness	23 um, 36 um, 50 um, 75 um, 100 um
Silicone Side	Single side or double side
Release Level	Light, medium, strong or tight release
Release Force	Light 3-10 g/25mm, medium 10-30 g/25mm, strong 30-80 g/25mm, confirmed by adhesive test
Test Method	180-degree peel, 300 mm/min, adhesive-system dependent
Residual Adhesion / SAS	Typically >=90%, confirmed by silicone transfer and subsequent adhesion test
Heat Shrinkage	Typically <=1.5% after 150 C for 30 min, grade-dependent
Roll Width / Tolerance	100-1500 mm, typical slitting tolerance +/-0.5 mm to +/-1.0 mm
Core / Winding	3 inch or 6 inch core, silicone side in or out
Quality Checks	Coating-side confirmation, release force check, roll flatness, edge burr, dust inspection, retained sample comparison

Applications

PSA labels and adhesive tapes requiring clean liner removal, stable unwinding and protected adhesive surfaces.
Double-sided tapes, foam tapes, transfer adhesive constructions and medical adhesive layers.
Electronics converting for graphite sheets, insulation parts, shielding materials and precision adhesive components.
Kiss-cutting, die-cutting, lamination, rewinding and sample roll approval before repeat PSA material processing.

How Can Release Force Be Matched to Labels, Adhesive Tapes and Die-Cutting?

Release force should not be chosen only by “easy release” or “heavy release.” Light release is better for low-tack labels, thin coatings and fast peeling. Medium release is common for adhesive tapes, label stock and roll-to-roll converting. Strong or tight release is used for high-tack adhesive layers, foam tapes, double-sided tapes and die-cut parts that must stay flat before stripping. Before approval, test the film with actual adhesive, dwell time, die-cutting pressure, stripping angle and storage condition.

Production Line

Packaging & Loading

FAQ

What thickness is commonly selected for Silicone Coated PET Release Film?

23 um suits thin labels. 36 um and 50 um fit general PSA converting. 75 um and 100 um add stiffness and die-cut support.

How do I choose between single side and double side silicone coating?

Single side silicone protects one adhesive surface. Double side silicone is used when both liner surfaces contact adhesive or need controlled separation.

What should be tested before larger production runs?

Test release force, residual adhesion, silicone transfer, die-cut stripping, lamination behavior and storage stability. Also confirm winding direction, roll flatness, edge burr condition and retained samples.

Can the release level be adjusted for different adhesive materials?

Yes. Light, medium and strong release levels can be matched by adhesive chemistry, coating weight, dwell time, peel method and converting process.