Silicone-Coated Polyester Release Films: Optimizing Adhesive Applications

Silicone-coated polyester release films converted by PHC in Greer SC for adhesive applications.

Every adhesive system depends on control. From pressure-sensitive labels to medical tapes and industrial laminates, performance comes down to whether the liner releases cleanly, consistently, and at the right force. Silicone-coated polyester release films are engineered to deliver exactly that—making them indispensable in packaging, converting, and specialty applications.

At Pilcher Hamilton Corporation (PHC), headquartered at 850 South Buncombe Road, Greer, South Carolina, release film innovation has been central to our business since 1904. With over 10,000,000 lbs of inventory and 24–48 hour delivery, PHC is the partner companies find when searching for “polyester near me” in the U.S.


Why Polyester Release Films Outperform Paper Liners

While paper liners have their place, polyester (PET) release films deliver a higher level of performance for demanding industries:

  • Dimensional Stability: Unlike paper, PET films won’t swell, curl, or warp in humid environments.
  • Heat Resistance: They withstand die-cutting and thermal lamination without degrading.
  • Clarity: Transparent PET allows visual inspection and precise alignment.
  • Tight Tolerance Performance: Ideal for electronics, medical, and automotive applications.

For engineers requiring precision, PHC provides technical datasheets to specify release films by gauge, release force, and surface energy.


How Silicone-Coated Polyester Release Films Work

The science of release control lies in the silicone chemistry. By applying a thin, uniform silicone layer to the polyester substrate, PHC can engineer films that deliver:

  • Predictable Release Forces: From easy-peel (8–15 g/in) to tight-release (60–120+ g/in).
  • Clean Removability: Adhesives stay intact on the product, not the liner.
  • Tunable Performance: Silicone coatings can be modified for acrylic, rubber, or silicone-based adhesives.

PHC offers both silicone-coated release films and adhesive silicone-coated base films to match specific application requirements.


Applications Across Industries

Silicone-coated polyester release films are used wherever adhesives meet precision. Some of the largest application areas include:

Pressure-Sensitive Labels

From logistics barcodes to premium branded labels, PET liners ensure consistent peel performance at high speeds.

Tapes and Industrial Laminates

Construction, automotive, and electronics use PET release films for tapes that must endure stress, heat, and aging.

Medical and Healthcare

PET liners are critical in wound dressings, surgical tapes, and wearable patches where clean, sterile release is essential.

Graphics and Specialty Markets

Large-format graphics, decals, and specialty adhesives depend on PET release liners for dimensional stability and ease of handling.

For deeper insight into these applications, visit PHC’s liner systems guide.


PHC’s Converting Expertise for Release Films

The effectiveness of a release liner is closely tied to how it’s manufactured and converted. PHC provides a full range of services to ensure release films meet customer specifications:

  • Slitting: Narrow-width rolls for labels and tapes.
  • Sheeting: Flat sheets for die-cutting and precision applications.
  • Winding: Consistent winding tension ensures no liner breakage during use.
  • Toll Converting: Customers can supply master rolls for PHC to convert.
  • Coating: Advanced silicone and adhesive coatings tailored to application.
  • Corona Treating: Increases surface energy for additional coatings or printing.

More details are available in PHC’s overview of PET converting services.


Specialty Release Film Options

PHC offers a range of specialty release films, including:

This wide range of choices ensures converters find the exact performance required for their market.


Sustainability in Release Liners

Historically, release liners have been challenging to recycle, but new technologies are emerging. PHC is committed to supporting customers with more sustainable solutions, including:

  • Post-consumer recycled (PCR) films for circular packaging systems.
  • Coating processes designed to minimize material waste.
  • Partnerships that explore take-back and recycling programs for spent liners.

Learn more about PHC’s sustainability-first approach.


Why Choose Pilcher Hamilton Corporation?

Converters across the U.S. depend on PHC for release films because we provide:


The Future of Release Liner Technology

The future of silicone-coated polyester release films will be defined by:

  • Recyclable liners that integrate seamlessly into existing PET recycling streams.
  • Advanced coatings that adapt to new adhesive chemistries.
  • Ultra-thin films that reduce material consumption while retaining performance.

PHC continues to innovate, ensuring our customers stay ahead of industry trends.


Silicone-coated polyester release films may not be visible in the final product, but they are critical to adhesive performance. By delivering consistent release, stability, and tailored performance, these films support everything from medical devices to automotive tapes.With a legacy of over a century, Pilcher Hamilton Corporation provides the supply, speed, and expertise to keep industries moving forward. For converters and manufacturers searching for polyester near me, PHC is the reliable choice at 850 South Buncombe Road, Greer, South Carolina.