Hardened PET base reaches 5H pencil hardness for superior scratch resistance; upgraded oleophobic layer stays slick; flat film for easy air-release, adhesive removes cleanly.
5H-280
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Standard vs. measured values on every row — all tested per GB / ASTM methods.
| Parameter | Unit | Standard | Measured | Test Method |
|---|---|---|---|---|
| Total thickness | μm | 280±15 | 286 | Thickness gauge |
| Water contact angle | ° | ≥110 | 112 | GB/T 30447-2013 |
| Haze | % | ＜2 | 1.34 | ASTM D1003 |
| Light transmittance | % | ≥90 | 91.7 | ASTM D1003 |
| Pencil hardness | H | ≥5H | 5H | Pencil hardness tester |
| Self-healing | / | — | — | Copper brush |
| Cross-cut adhesion | B | ≥4B | 5B | GB 9286 |
| Coefficient of friction | / | <0.2 | 0.12 | ASTM D1894 |
| Real-device edge-lift test | / | No edge lift on device | OK | Flat-screen smartphones |
| Steel-plate adhesion | g | 40-80 | 51 | ASTM D3330 |
| Steel-wool wear | strokes | No scratch after 1K strokes @ 500g | OK | ASTM D6037 |
* Measured values are from HANGMO outbound QC reports; certificates available with shipment.
Hardened PET base reaches 5H pencil hardness for superior scratch resistance.
Upgraded oleophobic layer stays slick and clear for true on-screen colors.
Flat, even film is easy to align and air-release — no chipped edges.
Stable adhesive removes cleanly with no residue.
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