Pressure Sensitive Polyester Film
- Material: PET polyester carrier
- Adhesive: acrylic PSA coating
- Liner: PET, glassine, or polycoated paper liner
- Carrier thickness: 25 um, 50 um, 75 um, or custom
- Adhesive thickness: 20-80 um typical range
- Use: die-cut labels, overlays, industrial bonding
Films Protective Company is a manufacturer of pressure sensitive polyester film with a PET polyester carrier, controlled PSA coating, and clean release liner for industrial converting. It is made for die-cut labels, graphic overlays, nameplates, panel bonding, and thin adhesive parts where shape stability matters. The value is balanced peel force, consistent adhesive thickness, smooth liner release, and clean cutting performance during laminating, kiss cutting, rotary processing, and final application.
Product Overview
Pressure sensitive polyester film is selected when an adhesive part must stay flat, keep its size after cutting, and bond cleanly to a finished surface. The PET carrier gives the construction better control than soft unsupported adhesive film during slitting, lamination, cutting, rewinding, and placement. This is useful for small labels, narrow strips, printed overlays, equipment panels, and polyester nameplates where edge shift can affect the final look.
The adhesive layer bonds by pressure, with no heat activation or liquid glue. Under controlled in-house sample testing, a 50 um PET carrier with medium acrylic adhesive kept a cleaner edge after kiss cutting than soft unsupported adhesive film. On smooth metal, PET, PC, ABS, and coated panels, 20-40 um adhesive normally gives a neat bond line. On lightly textured coatings, 50-80 um coating thickness can improve wet-out and reduce edge lifting after 24 hours at room condition.
The liner protects the adhesive and affects cutting, stripping, rewinding, and dispensing. If release is too tight, small labels may lift during matrix removal. If release is too light, parts may move on the roll. In roll sample checking, liner release and adhesive ooze should be reviewed together before larger converting.
Benefits
- Polyester carrier helps the film stay stable during slitting, laminating, cutting, and rewinding.
- Pressure-sensitive adhesive bonds by applied pressure, without heat, water, or solvent activation.
- Controlled peel force supports permanent bonding, medium mounting, and overlay lamination.
- Adjustable adhesive thickness helps match smooth panels, coated surfaces, and light texture.
- The liner supports kiss cutting, rotary processing, matrix stripping, and label dispensing.
- PET carrier reduces stretching, curling, and edge distortion compared with softer adhesive films.
- Sample checks can include 180 degree peel, 20-minute dwell, 24-hour dwell, residue, edge lifting, and adhesive ooze.
How does the polyester carrier improve overlay and industrial bonding performance?
The polyester carrier gives pressure sensitive polyester film its main converting advantage: it keeps the adhesive layer supported while the part is cut, removed from the liner, and applied. For graphic overlays, control panels, nameplates, and industrial bonding parts, this helps reduce stretching and shape distortion. In sample roll testing, narrow PET carrier strips showed cleaner edge recovery after rewinding than soft unsupported adhesive film, which helps overlay alignment, label dispensing, and final bonding appearance.
TDS
Item | Typical Value |
Base Material | Heat stabilized PET polyester film |
Thickness Range | 50um-350um |
Appearance | Clear, translucent, or milky white depending on grade |
Surface Treatment | Untreated, one-side treated, or two-side treated |
Surface Tension | 42-54 dynes/cm depending on treatment |
Thermal Shrinkage Test | 150C x 30 min sample test |
MD Shrinkage | Typical <=0.35%, grade and thickness dependent |
TD Shrinkage | Typical <=0.25%, grade and thickness dependent |
Processing Temperature Window | 100C-150C for coating, drying, and ink curing reference |
Main Process Fit | Printing, coating, insulation, lamination, die cutting |
Applications
- Die-cut PET labels for electronics, appliances, tools, and industrial equipment
- Graphic overlay bonding for control panels, membrane switches, and display windows
- Printed polyester nameplates, rating plates, warning labels, and serial labels
- Industrial bonding of thin plastic, metal, foam, and coated parts
- Protective overlay layers for printed graphics and functional panels
- Roll-to-roll adhesive parts requiring stable liner release and accurate cut edges
What should be checked before die cutting pressure sensitive polyester film?
Before die cutting pressure sensitive polyester film, the full construction should be tested, not only adhesive strength. A practical sample test should use the actual substrate, final cut shape, application pressure, and storage condition planned for production. The 20-minute peel result shows early bonding behavior, while the 24-hour result shows how the adhesive wets out after dwell time. For narrow labels or overlay windows, testing should also cover PET carrier curling, liner breakage, matrix stripping, adhesive ooze after rewinding, edge lifting after storage, and residue after removal from metal, PET, PC, ABS, or coated panel surfaces.
Production Line
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FAQ
Is pressure sensitive polyester film the same as plastic sheet with adhesive?
No. It uses a PET polyester carrier, PSA coating, and release liner for converting, die-cut labels, graphic overlays, and industrial bonding parts.
What adhesive thickness should I choose?
Smooth surfaces usually need 20-40 um adhesive. Lightly textured surfaces may need 50-80 um for better wet-out.
Why is peel force important?
Peel force shows whether the adhesive part will stay bonded, lift at the edge, or release cleanly during testing.
Can this film be used for rotary die cutting?
Yes. With the correct liner and cutting depth, it can be used for kiss cutting, rotary processing, matrix stripping, and roll dispensing.
