Anti Fog PET Film
- Material: Clear PET film with anti-fog coating
- Color: Transparent / clear
- Thickness: 50–250 micron
- Surface: Single-side or double-side anti-fog
- Format: Roll, sheet, slit roll, die-cut piece
- Use: Packaging windows, face shields, clear covers
PET Film Supply Company is an Anti Fog PET Film manufacturer producing clear PET film with a transparent anti-fog coating for packaging windows, face shields, and clear covers. This PET film with anti-fog coating is made for places where moisture, breath, refrigeration, or temperature change can reduce visibility. Instead of allowing condensation to gather as cloudy droplets, the coated surface helps moisture spread more evenly, keeping the window, visor, or cover easier to see through.
Product Overview
Anti Fog PET Film is used for transparent parts that must stay clear when moisture appears on the surface. It combines a clear PET base with a transparent anti-fog coating to reduce the cloudy look caused by fine water droplets. Unlike anti-fingerprint film, which focuses on oil marks and smudges, this material is made for condensation control in humid, chilled, or breath-exposed conditions.
For packaging windows, anti-fog coated PET film helps chilled food, fresh produce, moist products, and display packs remain visible after storage or temperature change. It can also work as an anti-fog packaging window film for cartons, boxes, and refrigerated display areas. The coated side should face the moisture source; otherwise, the visible effect may be weaker.
For face shields and clear covers, the coating helps reduce fog caused by breath, body heat, and quick temperature change. In internal sample checks, common clear anti-fog PET sheet grades show about 88–92% light transmittance and 2–4% haze. If the film is planned for sealed food trays, the anti-fog layer and heat-seal layer should be checked separately.
Benefits
- Keeps packaging windows, visors, and clear covers readable in humid, chilled, or breath-exposed conditions.
- Transparent anti-fog coating helps moisture spread into a thinner layer instead of visible droplets.
- Clear PET base gives stiffness for slitting, die-cutting, window patching, and visor parts.
- Supports better shelf display for chilled or moisture-sensitive products.
- Single-side coating works when the fog source is clear; double-side coating helps when both surfaces meet moisture.
- Coating side marking or protective interleaving can reduce converting and assembly mistakes.
- The anti-fog side should avoid rough handling, dusty tables, hard stacking pressure, and aggressive cleaning.
How Does the Anti-Fog Coating Keep PET Film Clear?
The coated PET surface changes how moisture behaves when vapor reaches the film. On untreated plastic, warm vapor can form small droplets that scatter light and create a cloudy view. A transparent anti-fog coating encourages moisture to spread into a thin, more even layer instead of gathering into visible droplets. This helps packaging windows, face shields, and covers stay easier to see through in refrigerated, humid, or breath-exposed environments.
Production Line
TDS
Item | Typical Data |
Product Name | Anti Fog PET Film |
Base Material | Clear PET / polyester film |
Coating Type | Transparent hydrophilic anti-fog coating |
Thickness Range | 50–250 micron, custom by application |
Width | Slit roll or custom sheet size |
Color | Clear / transparent |
Light Transmittance | Approx. 88–92% |
Haze | Approx. 2–4% |
Anti-Fog Side | Single-side or double-side available |
Surface Hardness | Around HB–2H, by coating grade |
Working Temperature | Approx. -20°C to 80°C |
Processing | Slitting, sheet cutting, die-cutting, lamination |
Application Fit | Packaging windows, face shields, clear covers |
Sample Test Advice | Test under humidity, cold storage, breath exposure, wiping, or lamination |
Applications
- Packaging windows:For boxes, cartons, fresh food packs, chilled packs, and display packaging.
- Cold-chain display packs:Helps reduce fog after movement from cold storage to warmer display.
- Face shields:Clear anti-fog PET sheet helps maintain vision when breath creates moisture.
- Transparent covers:Transparent anti-fog polyester film suits protective covers, machine viewing panels, and clear isolation panels.
- Observation windows:PET film with anti-fog coating helps operators check inside conditions without opening the cover.
- Die-cut clear parts:Used for small windows, visor pieces, inserts, and protective sheets.
What Should Be Confirmed Before Selecting This Film?
Before selecting this film, it is important to look beyond thickness and transparency. Anti-fog duration, haze level, light transmittance, coating position, scratch resistance, and process compatibility can all affect the final result. A film that looks clear at room temperature may still fog quickly after cold storage, warm vapor exposure, or repeated wiping.
For packaging windows, the coated side should stay clear when moist contents create condensation inside the pack. For face shields and clear covers, the surface should reduce fog from breath and body heat while keeping good optical clarity. If the material will be die-cut, folded, laminated, or formed, the coating should remain stable after processing.
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FAQ
Is this film the same as normal clear PET film?
Normal clear PET film may become cloudy when moisture condenses into small droplets. PET film with anti-fog coating is treated to reduce visible fog.
Should I choose single-side or double-side anti-fog coating?
Single-side coating suits a clear fog source, such as the inside of a packaging window. Double-side coating is better when both surfaces may face humidity or breath.
Can this film be used for both packaging windows and face shields?
Yes, but thickness, coating side, hardness, and cutting method should match the final structure.
How should samples be tested before production use?
Test under cold storage, warm vapor, breath exposure, wiping, die-cutting, or lamination conditions. Also check coating-side direction and stacking marks.
