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Surface protection film application is the process of matching a temporary film or release structure with the real surface, working environment, and removal timing before full use. This solution supports plastic sheet processing, metal fabrication, appliance panels, glass handling, construction protection, adhesive coating, lamination, and die-cutting. The main risks are surface contamination, scratches, edge lifting, adhesive residue risk, haze, film tearing, and unstable liner removal. The core judgment is not thickness alone, but whether the selected PE film, PET film, or release liner can pass sample testing on the actual surface and process condition.
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- Material: PE / LDPE temporary protective film
- Thickness: 30-100 um typical
- Adhesion: 30-180 g/25 mm typical range
- Colors: Clear, blue, white, black-white or printed
- Roll size: 20-2200 mm width, 100-1500 m length
- Use surface: Acrylic sheet, PMMA sheet, PC/polycarbonate sheet
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Temporary glass protection film helps keep finished glass cleaner during construction, renovation, fabrication, transport, installation, and handover. It is used on windows, glass doors, mirrors, shopfront panels, partitions, and glazed parts where dust, paint overspray, mortar splash, fingerprints, packing friction, and cleaning abrasion may create visible defects. The right choice depends on surface type, coating condition, tack level, film visibility, protection time, temperature, humidity, sunlight exposure, handling method, and the actual sample test result before full use.
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- Main test: release force between adhesive and PET silicone release surface
- Slow peel reference: 180-degree peel at 300 mm/min
- Alternative check: 90-degree peel for selected fixture or vertical separation evaluation
- Common sample width: 25 mm
- Common test environment: 23 C +/-2 C and 50% RH +/-5% RH
- Core QC items: release force, residual adhesion, silicone transfer, temperature aging, coating anchorage, surface defects, and roll quality
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- Material family: PET film, polyester film, and BOPET film for industrial converting
- Density reference: general clear PET film is commonly estimated at 1.38-1.40 g/cm3
- Calculation focus: thickness conversion, GSM, roll weight, yield, and load estimation
- Mechanical data: MD/TD tensile strength, elongation, modulus, shrinkage, and flatness
- Optical data: transmittance, haze, gloss, clarity, color tone, and visible defects
- Processing data: dyne level, corona treatment, COF, roll quality, and surface stability
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- Material: High-grade PET film with adhesive backing
- Thickness: 25um, 50um, and custom thickness options
- Color: Transparent clear, low haze options available
- Before approving a transparent adhesive construction, compare haze, transmittance, clarity, gloss, and the finished PET film optical test conditions on the complete structure rather than on bare PET alone.
- Adhesive Type: Solvent-based or water-based adhesive
- Supply Format: Slit rolls, sheets, and custom roll dimensions
- Application: Industrial labeling, transparent overlay, packaging lamination, surface bonding, and converting use
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- Structure: Optical-grade PET substrate with single-side ITO coating
- Appearance: Clear transparent conductive surface
- Sheet resistance: Selectable reference 10-500 ohm/sq
- PET thickness: Common reference range 50-188 um
- Formats: Slit rolls and custom-cut sheets
- Processing: Coated side, winding direction and slit width confirmed before production
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- Material: clear PP, TPU, or PET film options
- Thickness: 150-200 um typical factory test range
- Adhesive: acrylic pressure-sensitive adhesive
- Color: transparent gloss, matte sample check available
- Supply form: rolls, sheets, die-cut patches
- Main use: localized painted gas tank protection
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- Base film: LDPE, LLDPE, LDPE / LLDPE blend or HDPE-influenced PE
- Thickness reference: 30-100 um for protective-film material comparison
- Density range: typically 0.910-0.965 g/cm3
- Main calculations: GSM, roll weight, coverage area and net film weight
- Test focus: density, tensile strength, elongation, peel adhesion and clean removal
- For soft surface applications, the same peel adhesion and clean removal logic can be reviewed through a carpet film residue testing example, where carpet fiber, pile height, dwell time, and removal force must be checked together.
- Roll checks: fish eyes, gels, thickness profile, end face and roll flatness
