Release Liner For Silicone Adhesive
- Material: Fluoro-silicone coated PET film
- Color: Clear, milky white, or customized tone
- Thickness: 50μm, 75μm, 100μm, custom thickness available
- Release side: Single-side or differential release
- Adhesive match: Silicone PSA, silicone tape, soft medical gel adhesive
- Key function: Clean release with controlled peel force
PET Film Supply Company is a manufacturer of release liner for silicone adhesive, made with a fluoro-silicone release system for silicone PSA, soft gel layers, skin-contact patch structures, and other low surface energy adhesive surfaces. This is not a standard silicone-coated release film. It is made for cleaner peeling after storage, helping reduce liner lock-up, gel pick-off, visible residue, edge deformation, and adhesive surface damage after 24h / 72h dwell and aging checks.
Product Photos
Product Overview
Silicone adhesive does not behave like acrylic or rubber adhesive. When the adhesive layer contains silicone chemistry, an ordinary silicone release surface may become too closely matched with the adhesive after storage. The result can be rising peel force, adhesive transfer, gel deformation, edge stretch, or a liner that feels locked.
This fluoro-silicone release liner is made for controlled release where clean peeling matters more than simple easy removal. It fits silicone tape construction, soft medical gel layers, skin-contact adhesive patch structures, scar care gel sheet constructions, and products where the adhesive surface must stay smooth after liner removal.
In our factory checks, soft silicone gel can pass a quick peel test but fail after longer dwell, especially when surface wet-out increases over time. We check 24h / 72h dwell, 180° peel force, 50°C × 72h aging, visible residue, gel marks, and patch edge flatness before bulk production.
Benefits
- Helps silicone-based adhesive peel cleanly without gel pick-off, tearing, or residue.
- Reduces liner lock-up when silicone PSA has low surface energy, high wet-out, or longer storage time.
- Keeps soft medical gel layers smoother during removal, with less edge stretch, distortion, and surface marking.
- Gives controlled peel force instead of an overly loose release that may cause pre-dispensing.
- Supports different release levels after testing the supplied formula, dwell time, peel angle, and aging condition.
- PET film base provides stable thickness, flatness, and easier handling for thin patch structures.
How does a fluoro-silicone release system work with silicone adhesive?
A fluoro-silicone release system gives silicone-based adhesive a lower-energy release interface. This matters because silicone PSA or soft gel adhesive may interact with ordinary silicone release coating and become unstable after dwell. The liner should not only come off; the adhesive should remain clean, flat, and undamaged. For skin-contact patch production, a stable release surface helps reduce adhesive pick-off, liner lock-up, edge deformation, pre-dispensing, and surface marks.
Packing and Loading
TDS (Technical Data Sheet)
Item | Technical Reference |
Product type | Release liner for silicone adhesive |
Base film | PET film |
Release system | Fluoro-silicone coating |
Common thickness | 50μm / 75μm / 100μm |
Color | Clear, white, or customized |
Release side | Single-side or differential |
Adhesive compatibility | Silicone PSA, silicone tape adhesive, medical silicone gel adhesive, low surface energy adhesive |
Release level | Extra easy, easy, medium, controlled release |
Peel test | 180° peel with actual adhesive sample |
Dwell test | 24h / 72h comparison |
Aging check | 50°C × 72h or specified condition |
Clean release check | No residue, gel pick-off, lock-up, surface damage, or edge deformation |
Surface quality | Smooth coating, stable unwind, low visible defects |
Formula check | Test supplied adhesive before bulk production |
Custom option | Thickness, release force, side treatment, roll size |
What should be checked before using a release liner for medical silicone gel adhesive?
Before selecting a liner for soft medical gel adhesive, the actual formula should be tested instead of relying only on general TDS values. If release force is too high, soft gel may show edge stretch, surface marks, gel pick-off, or patch distortion. If it releases too easily, early separation may happen during handling or storage. We check 24h / 72h dwell, 180° peel angle, aging temperature, visible residue, gel marks, and patch edge flatness after peeling. A good clean release liner should protect the adhesive until use.
Applications
- Silicone tape that needs stable liner removal after storage or lamination.
- Soft medical gel adhesive used in skin-contact patch structures.
- Scar care gel sheets where the gel surface must stay smooth before use.
- Wearable adhesive layers that need controlled release and clean handling.
- Silicone PSA transfer structures where ordinary silicone release film may cause unstable peel.
- Low surface energy adhesive systems requiring fluoro-silicone release performance.
FAQ
Is this the same as ordinary silicone-coated PET release film?
No. It uses a specialty fluoro-silicone surface for silicone-based adhesive. Ordinary silicone release film may not give stable release after dwell or storage.
Can one release force work for all silicone adhesives?
No. Silicone adhesive formulas vary. Release force should be confirmed by adhesive formula, dwell time, peel angle, and aging condition.
What problems happen if the liner is not matched correctly?
Common problems include liner lock-up, adhesive pick-off, gel surface damage, residue, edge stretch, adhesive transfer, patch distortion, or pre-dispensing.
Can PET Film Supply Company make custom release levels?
Yes. As a factory, we adjust thickness, release side, and release level based on actual adhesive testing and final application needs.
