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Surface Protection Films

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Surface Protection Film Engineering

Surface protection films utilize co-extruded low-density polyethylene (LDPE) or polyolefin backings coated with formulated acrylic adhesives. These pressure-sensitive films apply smoothly over delicate substrates to establish a continuous physical barrier against mechanical abrasion, surface scratching, dust, chemical splatters, and environmental contamination during manufacturing, fabrication, and transport.

The balanced adhesive formulation delivers controlled peel adhesion, preventing film tunneling, edge curling, or premature detachment under air movement while allowing effortless, single-piece manual removal without leaving adhesive transfer or surface ghosting.

Co-Extrusion & Coating Technology

Zhejiang Geruite Packaging Materials Co., Ltd. produces technical surface protection films utilizing multi-layer co-extrusion blown film lines and automated precision coating systems. Film gauge uniformity is controlled inline within ±3% variance to prevent optical distortion and localized stretch weakness.

In-house laboratory verification includes 180-degree peel adhesion testing, UV exposure resistance validation, and clean removal evaluation across polished stainless steel, acrylic sheets, and architectural glass panels prior to roll slitting.

Target Application Fields

  • Architectural Glass & Window Panels: Shields glass panes during construction, plastering, and exterior facade installation.
  • Stainless Steel & Aluminum Sheets: Prevents scratching during deep drawing, bending, laser cutting, and transport.
  • Plastic Profiles & Acrylic Panels: Protects polished polycarbonate, PMMA, and PVC extrusions from surface scuffing.
  • Automotive & Appliance Trim: Safeguards high-gloss interior decorative panels and exterior body trim during assembly.

Product Specifications

ParameterTest StandardTechnical Data Value
Base Film MaterialN/ACo-Extruded LDPE / LLDPE Film
Adhesive BaseN/AWater-Based Acrylic / Solvent-Based Acrylic
Film Thickness RangeASTM D365230 μm - 120 μm (0.03mm - 0.12mm)
180° Peel Adhesion RangeASTM D3330 / GB/T 279215 g/25mm - 400 g/25mm (Customizable by substrate)
Elongation at Break (MD/TD)ASTM D882≥ 250% / ≥ 350%
UV Exposure StabilityQUV Aging Test30 Days to 180 Days (Depending on UV package)

Core Functional Characteristics

  • Controlled Peel Adhesion: Maintains steady adhesion levels over time without adhesion build-up during storage.
  • Puncture Resistance: Resists sharp metal burrs, tools, and dirt particles encountered during fabrication.
  • Clean Removal Performance: Peels off smoothly without tearing, leaving zero glue residue or surface hazing behind.
  • Printable Outer Surface: Supports surface printing for brand logos, processing instructions, and directional arrows.

Frequently Asked Questions

  • Q: How do I select the correct adhesion level for surface protection film?
  • A: Adhesion level depends on surface roughness: smooth glass or mirror metal requires very low tack (15–50 g/25mm), while textured plastics or matte metal sheets require higher tack (150–300 g/25mm).
  • Q: Can protection films be used during laser cutting operations?
  • A: Specialized laser-compatible PE films are available with specific rubber/acrylic adhesives that do not char or produce toxic fumes during CO2 or fiber laser cutting.

Material Selection Guide

Match film thickness and tack level to mechanical stress and surface finish: choose 30–50 μm film with low tack for optical plastics and glass; choose 70–100 μm film with UV stabilizers for outdoor architectural metal panels subjected to fabrication and weather exposure.

Zhejiang Geruite Packaging Materials Co., Ltd.
About Us
A Professional Packaging Material Manufacturer
Zhejiang Geruite Packaging Materials Co., Ltd., is located in Zhejiang Province, is a professional packaging material manufacturer. As China Surface Protection Films Manufacturers and Custom Surface Protection Films Suppliers, the company boasts a comprehensive product line, primarily producing BOPP, masking tape, kraft paper, high-temperature resistant and metal tapes, while also offering PE stretch film, PP strapping, and PET plastic strapping. We are committed to providing reliable packaging solutions for the logistics, electronics, construction, and industrial manufacturing sectors. Adhering to a quality-first approach and continuously pursuing innovation, we strive to become a trusted partner for our clients through efficient service and stable product performance.
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