PET Film Puncture Resistance Technical Data
PET film puncture resistance describes how a defined PET or PET-based construction responds to localized penetration. This technical data compares puncture force, penetration distance, energy, and failure behavior for bare, treated, coated, and adhesive-backed PET films. Results support grade or lot comparison only when the tested structure, probe setup, and conditions are identified. Sample testing remains necessary before full use.
Define the Test Specimen First
Define the specimen first: PET grade, treatment/coating, adhesive, liner status, and tested thickness. This TDS addresses localized penetration, not product selection or a universal load limit.
If the PET construction is still open, use the PET film construction range for electronics before assigning the test.
Identify the Stack Under the Probe
Record the stack under the probe. Measure PET carrier thickness separately from total thickness; added coating, adhesive, or liner does not prove higher carrier puncture resistance.
For roll-stock identification, use the PET Film In Roll record to confirm finish, treatment side, and roll variables before specimens are cut.
Record Puncture Data for the Tested Stack
Item | Typical Value / Reference Range | Test Method or Condition | Notes |
Construction | Tested PET grade | Record layers and lot | Compare defined stacks only. |
Carrier / total thickness | Measured, project-confirmed | Multi-position gauge check | State liner status. |
Puncture response | Tested force; energy/penetration if available | ASTM F1306, EN 14477, or agreed method | Record probe, fixture, speed. |
Tensile / elongation | Grade-dependent, MD/TD | ASTM D882 or equivalent | Supporting data. |
Peel adhesion | Project-confirmed; adhesive-backed PET | Defined substrate and dwell | Separate from puncture strength. |
Choose the Loading Mode First
Test Item | What It Checks | Suggested Method or Reference | Why It Matters | When To Request It |
Controlled puncture | Localized penetration | ASTM F1306; EN 14477 if specified | Primary comparison | Puncture approval |
Dynamic puncture | High-rate impact | ASTM D7192 or ISO 7765-2 | Separates impact loading | Impact-risk use |
Peel adhesion | Surface removal force | ASTM D3330 or internal method | Checks adhesive behavior | Adhesive-backed PET |
Read the Force-Displacement Response
Peak force, penetration distance, and energy describe different parts of the response. Compare values only with consistent probe, fixture, speed, conditioning, thickness, and specimen count.
Do not project puncture performance from thickness alone. Use the PET Film Thickness Range for gauge, stiffness, and converting selection; tensile strength and elongation can explain cracking or stretching but do not replace puncture testing.
Know Where Laboratory Data Stops
Laboratory data is not a field load limit. Surface, load, cargo shape, coating, environment, storage, transport, equipment, operator method, and sample results can change actual behavior.
For adhesive-backed PET, puncture force does not predict peel, edge lift, surface marks, or residue on the actual substrate.
Approve the Actual Protective Construction
Use the actual PET construction and substrate, tied to one sample or retained roll.
- Record grade, thickness, layers, lot, and storage history.
- Run the agreed method with documented probe, fixture, speed, and specimen count.
- For adhesive-backed PET, test the intended surface at representative 24 h, 72 h, and 7-day dwell points; inspect peel, edge lift, marks, bubbles, tearing, and residue.
Sample testing is recommended before full use. Use a production trial when geometry, speed, handling, or transport differs from the laboratory setup.
Recognize Invalid Comparisons
Data Point | If Too Low | If Too High | Risk in Application | Check Before Full Use |
Puncture response | Earlier penetration | May reflect another construction | Perforation / false comparison | Repeat identical setup |
Film thickness | Lower section | Higher stiffness | Weak zones / converting issues | Gauge check and trial |
Probe / fixture | Sharper stress | Changed deformation | Misleading cross-test values | Record geometry |
Peel adhesion | Edge lift | Removal / transfer risk | Surface-mark risk | 24 h / 72 h / 7-day check |
Retest After Storage or Process Change
Keep storage history with the test record. Store rolls indoors under project-confirmed conditions, protected from sunlight, moisture, contamination, pressure, and unstable stacking. Retest after damaged packaging, uncertain storage, exceeded intervals, or process changes.
If chemicals may contact the film, use the PET film chemical resistance technical data as a separate exposure assessment. The protective film testing and PET processing capabilities provide context for retained samples and quality-control checks.
FAQ
How is pet film puncture resistance tested?
Use a defined specimen, probe, fixture, speed, and failure criterion. Report thickness with force, penetration, or energy.
Is a typical value a guaranteed specification?
No. A project-confirmed specification needs an agreed grade, method, sampling plan, and acceptance criteria.
Does film thickness determine puncture resistance?
No. Structure, probe geometry, speed, and failure mode also affect the result.
Why test adhesive-backed PET on the actual surface?
Puncture data does not predict adhesion; representative dwell and peel checks remain necessary.
