PET Film With Release Coating Film

 

PET film with release coating is a polyester (BoPET) film coated on one or both sides with a precision silicone release agent, engineered to provide clean, controlled release from pressure-sensitive adhesives, resins, and sealants. The PET substrate delivers exceptional tensile strength, dimensional stability, heat resistance, and surface smoothness - far exceeding paper-based liners in demanding applications where moisture, creasing, or transparency matter.

We use premium Dow Corning silicone as our standard release agent, applied in a controlled process that ensures uniform coating thickness and consistent release performance from the first meter to the last. Available in three coating systems - standard silicone, low-silicone, and anchor coat - our PET release film serves industries from label converting and medical products to construction tapes and electronic component manufacturing.

 

 

Coating Systems

Type	Release Agent	Key Features
Standard Silicone	Dow Corning silicone on PET	High cleanliness, excellent release consistency, wide compatibility with acrylic, rubber, and hot-melt adhesives
Low-Silicone	Low-silicone formulation on PET	Minimal silicone migration, clean release with superior resin coatability - ideal for electronics and silicone-sensitive applications
Anchor Coat	Silicone with anchor coat layer on PET	Anchor layer provides anti-static treatment and enhanced adhesion of the release coating to the substrate - prevents coating delamination in demanding processes

 

Technical Specifications

Parameter	Details
Substrate	Biaxially-oriented polyester (BoPET/Mylar)
Coating	Silicone release agent - single-sided or double-sided
Coating Type	Standard silicone / Low-silicone / Anchor coat (anti-static + adhesion-promoted)
Release Force	Custom range - tuned to your adhesive system and application
Width	Custom slitting available
Thickness	Custom gauges available
Shelf Life	Long - stable release performance under proper storage conditions

 

Key Advantages

1. Premium Release Performance Dow Corning silicone coating delivers uniform, consistent release force across the entire roll. No jerky peel, no adhesive transfer, and reliable performance on high-speed converting lines.

2. Superior Substrate Strength PET film provides far greater tensile strength and dimensional stability than paper liners. It resists stretching during coating and converting, maintains precise registration, and will not crease, tear, or absorb moisture in humid environments.

3. Anti-Static & Anti-Blocking Options Anchor coat and treated grades include anti-static properties to prevent dust attraction and handling issues during automated processing. Anti-blocking treatments ensure smooth unwinding and stacking.

4. Three Coating Systems Available Standard silicone for general applications, low-silicone for electronics and silicone-sensitive environments, and anchor coat for enhanced adhesion and anti-static performance. One product family covers multiple use cases.

5. Flexible Format & Humidity Resistance Unlike paper liners, PET release film is inherently waterproof and humidity-resistant. Suitable for outdoor applications, wet-process manufacturing, and environments where paper liners would fail.

 

Applications

Tape & Label - release liner for double-sided tape, transfer tape, and pressure-sensitive label stock

Construction - flashing tape liners, adhesive-backed roofing membrane liners, caulking and sealant tape liners

Medical - release liner for wound dressings, bandages, transdermal patches, and medical adhesive products

Hygiene - liner for sanitary product adhesive tapes and diaper fastening systems

Electronics - low-silicone liners for cleanroom tape, EMI shielding, and precision die-cut components

Film & Ceramic Casting - smooth, non-contaminating carrier film for casting processes

Envelope & Packaging - peel-and-stick envelope closure liners, easy-open packaging features

Graphic Arts - carrier film for vinyl graphics, screen printing, and sign-making films

 

Packing & delivery:

We have many kinds of packing materials, such as carton packing, pallet packing and roll packing.

We can delivery products within 15days after receive deposit.

 

R&D & Quality

Our Product Development Department combines advanced coating technology with deep industry expertise. All testing is conducted in our ISO 9001:2015 certified facility, supported by over 20 years of manufacturing experience. Services include:

Custom release force tuning for your specific adhesive system

Anti-static and anti-blocking treatment specification

Coating type recommendation (standard, low-silicone, or anchor coat)

Pre-production sampling and quality validation

 

FAQ

1. What is the difference between PET release film and paper release liner? PET film offers higher tensile strength, better dimensional stability, complete moisture resistance, and the ability to be used in transparent applications. Paper liners are more economical but can curl, tear, or absorb moisture. PET is the premium choice for demanding or outdoor applications.

2. Which coating type should I choose? Standard silicone is suitable for most general-purpose adhesive applications. Choose low-silicone if you need minimal silicone migration (electronics, cleanroom). Choose anchor coat if anti-static properties or enhanced coating adhesion are required.

3. Do you use Dow Corning silicone? Yes. We use Dow Corning silicone as our standard release agent - ensuring industry-leading consistency and performance.

4. Can you customize the release force? Yes. Release force is tuned to your specific adhesive type, application method, and processing requirements. Tell us your needs and we will match the force accordingly.

5. Is anti-static treatment available? Yes. Our anchor coat type includes anti-static properties. Other grades can also be treated for static dissipation on request.

6. What is your minimum order quantity? MOQ varies by specification. Contact us with your requirements for a tailored quotation.

7. Do you provide samples for testing? Yes. Contact us to request samples for evaluation and compatibility testing.

8. What is the typical shelf life? PET release film has a long shelf life when stored properly. Contact us for specific shelf life data for your selected coating type.

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