Products
Products
Products
| HS Code | 939975 |
| Basematerial | Polyethylene Terephthalate (PET) |
| Coatingmaterial | Silicone |
| Thicknessrange | 12-100 microns |
| Releaseforce | Low to moderate (customizable) |
| Color | Transparent, milky, or colored |
| Surfacefinish | Smooth and glossy |
| Temperatureresistance | -70°C to 150°C |
| Widthrange | Up to 2100 mm |
| Moistureresistance | Excellent |
| Tensilestrength | High |
| Dimensionalstability | Excellent |
| Recyclability | Partially recyclable |
| Adhesivecompatibility | Pressure sensitive adhesives |
| Shelflife | 1-2 years under proper storage |
| Printability | Surface printable after corona treatment |
As an accredited Silicone Coated PET Release Film for Pressure Sensitive Labels factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The silicone coated PET release film is packaged in rolls, 500 meters each, wrapped in protective plastic and boxed for shipment. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL): Typically loads about 12-15 tons, with rolls securely packed on pallets to prevent damage during international shipping. |
| Shipping | The Silicone Coated PET Release Film for Pressure Sensitive Labels is securely packaged in rolls, sealed against moisture and dust. Each roll is protected with cushioning material and shipped in sturdy cartons. Standard shipping is via palletized freight, ensuring safe transport and easy handling. Expedited and international shipping options are available. |
| Storage | Silicone Coated PET Release Film for Pressure Sensitive Labels should be stored in a cool, dry, and clean area, away from direct sunlight, moisture, and extreme temperatures. Keep the film in its original packaging to prevent contamination and surface damage. Avoid stacking heavy objects on top to preserve roll integrity. Optimal storage temperature is 15-30°C with relative humidity below 60%. |
| Shelf Life | The shelf life of Silicone Coated PET Release Film for Pressure Sensitive Labels is typically 12 months when stored in cool, dry conditions. |
As a direct manufacturer of silicone coated PET release film, we supply downstream industries where consistent separation performance, dimensional stability, and reliable handling are key to pressure sensitive label production. Below, we detail exclusive industrial scenarios backed by sector standards, application-specific usage guidelines, production process points, and the specific types of goods our clients produce with our material.
Label converters in the packaging sector use our silicone coated PET release film as a critical carrier in the production of pressure sensitive labels for bottles, containers, and shrink sleeves. The film’s release chemistry supports rapid die-cutting lines, maintaining release uniformity during high-speed converting and precise matrix stripping, which is vital for both manual and automated label application systems.
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Our film serves pharmaceutical convertors producing high-purity pressure sensitive labels for medication vials, syringes, and diagnostic devices, where critical cleanliness and traceability are strictly controlled. The film’s low extractable content and consistent release minimize foreign particle contamination during label assembly in controlled environments.
Industry compliance standards
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Electronics manufacturers require precise release films as liners for specialized identification and traceability labels applied to printed circuit boards, lithium batteries, and display modules, where electrical isolation and surface consistency are critical. Our PET release films deliver stable dielectric properties and controlled slip during high-temperature adhesive curing and automated placement.
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Safety marking, warning, and compliance label manufacturers utilize our release film for labels applied on heavy equipment, automotive parts, and industrial tools, where long-term adhesion, UV resistance, and resistance to chemical exposure are essential. The film retains stable release properties under diverse lamination and overprinting conditions, ensuring error-free dispensing.
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Our film plays a direct role in the manufacturing of RFID and smart label laminates, acting as the carrier platform for pressure-sensitive assemblies integrating ultra-thin transponders. The consistent release profile prevents RFID chip delamination during position registration, helping inline process sensors maintain exact overlay tolerances.
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Technical tape producers for automotive, aerospace, and construction sectors employ our film as a precision release agent in double-sided and transfer tape lines, where low-shear adhesive systems demand non-blocking, low-migration surfaces. Our films withstand high lamination line speeds and temperature variations during solvent or hotmelt adhesive application.
Industry compliance standards
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Competitive Silicone Coated PET Release Film for Pressure Sensitive Labels prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615380400285 or mail to sales2@liwei-chem.com.
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Tel: +8615380400285
Email: sales2@liwei-chem.com
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Manufacturing is about solving problems in the real world. When people stick a label onto a package, smooth performance depends on the release film that carried that label to the line. As a maker of silicone coated PET release films used in pressure sensitive label production, we’ve learned what does and doesn’t matter through countless production runs. Lots of products claim they meet standards on paper, but out in a real pressroom, the difference shows up quietly in the workflow, ease of use, and stability.
You can spot quality film from the second a roll is unwound. The PET (polyethylene terephthalate) backbone delivers dimensional stability under tension, resisting stretch and curl even after storage. Some films sag and misfeed; ours keeps its shape right through die-cutting and dispensing. This supports high throughput and reliable matrix stripping, which keeps lines moving and reduces downtime. Labels don’t jam, scuff, or lose position on the web. Our silicone formulation covers the PET base with a finely tuned, precisely applied release layer—engineered for clean and controlled separation at just the right force when labels are applied.
A few years back, a label converter walked us through their pain points with previous backing films. They saw static build-up and liner dust fouling the applicators. Their old release films, based on paper or inferior plastic, felt inconsistent and left residue behind, sometimes even causing double-labeling. Our team set out to resolve these real production headaches. We engineered our PET film to be perfectly smooth and non-porous, so the silicone anchors evenly, protecting against hotspots, pinholes, or voids in the coating. Silicone, properly cured, transforms the film’s surface, preventing sticking, static, or debris from building up under normal humidity and temperature swings.
Several converters switching from glassine or kraft liners have told us about the drop-off in dust and shearing they experienced after moving to PET. Label rolls unwind cleanly, with no paper dust on high-speed labelling lines. Electronic patch-detection runs more efficiently because the PET transmits light evenly, unlike paper, which can add noise to scanning systems. So printers switching to clear or metallic face-stocks find PET a better fit—the transparency and flatness of the film keep registration precise for holographic, clear, or opaque labels alike.
As a film maker, not a trader, we get frequent calls asking whether our product comes in “standard” thicknesses and widths. The answer: PET release film isn’t just a commodity—there’s a technical reason behind every gauge, tension rating, and roll dimension we ship. For example, our Model X120 uses a 23-micron (92-gauge) PET film, with silicone deposited at 1.5 grams per square meter. Thinner films like X50 (19-micron) suit tight-wind retail label applications, while heavier models, up to 75-micron, serve industrial label formats for automotive, tire, or chemical drums.
Some companies buy only by thickness or width, missing the interplay between those specs and release force. PET purity, silicone crosslinking, corona treatment, and coat weight all affect performance, especially in automatic labelers. Too thick, and rewind tension can deform labels. Too thin, and die-cuts can punch through on complex shapes. We run QC pulls every shift to measure release force at different speeds and humidity—only film coating that hits target specs makes it out of our plant. Over time, the field reports from converters help us refine those “invisible” tolerances that only show up after thousands of meters on a working label press.
Silicone chemistry changed the release liner field by introducing stable, low-energy surfaces, but not all silicone coatings behave the same way. Cheaper “off-brand” films often use low-cure or uneven silicone, which can transfer to adhesives or abrade off after a few windings. This means the pressure-sensitive label either sticks too soon, causing misfeeds, or leaves residue that fouls the print head. Some films cure with residual low molecular weight siloxanes, making them slippery to the touch but unreliable for hotmelt or UV acrylic adhesives.
Our experience taught us that using high-purity platinum-cured silicone delivers the ideal release margin—enough slip to unwind smoothly but enough tack to hold the face-stock steady through finishing. For labels that must perform inside fridges, freezers, or high heat, this tuned release force is the difference between consumer-safe packaging and a recall due to misapplied labels. Photo labs, beverage bottlers, and logistics centers rely on PET liner’s clarity and slit-stability to achieve almost invisible registration, whether using machine vision or older mechanical sensors.
Day-to-day, our plant receives feedback showing how PET release films behave across real-world conditions, not just lab tests. A bottling operation exposed to steam heat needed a liner that wouldn't distort on the line, while a frozen food labeler required film that didn’t crack at subzero storage. Paper liners often deform or delaminate at these extremes; PET hangs tough, holding its gauge and peel characteristics.
On high-speed labeling lines—where meters per minute outpace the human eye—static buildup can stall machines and cause waste. PET’s low moisture content and monolithic structure resist static and dust, so applicators run longer between clean-outs and maintenance. We keep talking to operators to see what’s really slowing them down, and small liner upgrades, like antistatic additives or edge profiling, can save hours of troubleshooting every month.
As film manufacturers, we know that surface smoothness isn’t a luxury; it’s a requirement for top-end label production. Die-cutting machinery counts on a perfectly flat and smooth release liner to guide precision blades. Any ridge, particle, or silicon puddle translates into edge burrs or incomplete cuts—issues that cost time and money.
We run optical inspection on every batch of coated film to identify air bubbles, fisheyes, and particulates. A flawless release surface reduces label pick errors and promotes clean release every time. Photographers, electronics makers, and cosmetic brands adopting “no-label look” packaging all demand this standard, since even a small defect in the liner can cause a high-gloss or clear label to misfeed or wrinkle. We draw on over a decade of feedback from their QC teams to keep pushing our coating processes to the edge of what’s physically possible.
PET release films last through repeated handling, shipping, and machine loading without tearing. This saves converters the expense and hassle of frequent roll changes. But after labels are applied, what’s left is scrap liner. Sustainability questions come up from brands looking to show greener profiles to their consumers. Our PET liners are compatible with return-to-base recycling in larger print shops or distribution centers, and our team is piloting work with partners who recycle spent PET liners into new films or packaging.
While PET offers better recyclability than a lot of composite release webs, local recycling may still lag behind ideal conditions. We take direct responsibility for what we make by offering take-back programs in some regions and collaborating with converters to reduce waste at the source. Our newer thin-gauge products reduce PET use per label by up to 20 percent, bringing down not just costs but material footprint.
In the label industry, a lot happens between our manufacturing floor and the end-user applying the label. On the press, the release film supports tight print tolerances, perfect registration, and clean die-cutting. At the converter, a good PET release liner keeps the matrix intact for easy stripping, whether stripping is done by hand or at speeds up to 100 meters a minute. At the labeler, the liner feeds smoothly, doesn’t cause static cling, and resists foldover. If any one of these steps goes wrong, it costs time, money, and reputation.
We don’t just send out samples and move on. Our engineers work with print shops, logistics hubs, and packaging lines to diagnose failures—whether it’s a curl that ruins a run or a static spot causing sequential labels to miss in the print-and-apply machine. By learning from those headaches, we keep improving the clarity, strength, and release curve of our films. For prime product labels, the difference truly shows: shelf appeal and recognition hinge on perfect presentation, which starts at the core of the release film.
Companies new to self-adhesive labels sometimes start out with paper or polypropylene liners. Paper’s appeal lies in cost and easy printability, but it tears and curls in damp or heated environments. Polypropylene liners offer better water resistance, but lack the heat-resistance and mechanical stability of PET. Paper liners, while cheap, tend to generate dust and can shear during automatic dispensing or tight rewinding, which costs far more than a few cents saved per roll.
Some pressure sensitive applications like ultra-clear beverage labels demand an optically clear, rigid liner—something only polyester can deliver. Our PET release films maintain registration for high-value applications like pharmaceuticals, electronics, and elevated shelf packaging. The difference in print clarity, rewind ease, and label application speed shows up fast, especially on demanding lines where every misfeed means rework.
In the world of pressure sensitive labels, release force isn’t just an abstract number—it’s a dial that must be set just right. Too low, and labels flag or shift before application. Too high, and the liner rips or stalls the feeding mechanism, leading to downtime. Release force can vary with silicone chemistry, coat weight, curing method, and substrate surface energy. This means each batch of release film gets tested in real-world trials under typical pressroom humidity and temperature before clearing shipment.
Converters rely on predictable release so applicators feed precisely. We tune silicone chemistry and baking cycles to keep that force steady across thousands of meters. Advanced face stocks like foils, holographs, or “no-label look” films have special needs; silicone on PET handles these with far less curling and distortion than conventional liners. We keep an open line with customers tackling difficult applications, using their feedback to tweak formulations so new adhesives or substrates get a clean break every time.
Talk to any converter who’s had a run delayed by inconsistent batch performance, and you’ll realize how important manufacturing controls are. Consistency comes from every stage—resin selection, precision extruding, surface treatment, and inline monitoring of silicone application. We’ve invested heavily in automated QC, but nothing replaces the judgment of well-trained operators who’ve run thousands of rolls and can detect flaws by touch, sound, and sight.
Unplanned downtime, wasted inventory, and rush orders—all these result from poor liner reliability. We field calls all the time from print shops that learned the hard way: consistent PET release film beats small cost savings from buying “off-the-shelf” liners. Our plant schedules its rolls to match converter run rates and minimizes lead times for both standard and custom products, because a missed ship date can mean lost business down the production chain.
The label world keeps moving. NFC smart labels, removable price tags, high-gloss cosmetic wraps, and tamper-evident barcodes push new demands onto release films. As the industry adopts digital print and faster, automated inspection, the margin for error shrinks. That’s why we don’t rest on legacy processes; our film lines keep evolving in response to real problems seen in the field.
Silicone coated PET release films give converters the consistency, speed, and edge quality modern brands now expect. From food and beverage to electronics, household to health care, PET liners make the difference between costly do-overs and press runs that hit the mark on the first try. Every day, we draw on our experience as hands-on makers to improve not just the film, but the performance, reliability, and sustainability of the entire pressure sensitive label supply chain.
