PE Protective Film for Metal & Glass Surfaces: Specification Guide and Pre-Order Checklist
Author: Xiahong Packaging Team
Date: 2026-10-09
Keywords: PE protective film, metal surface protection, glass protective film, LLDPE protective film, stainless steel film, aluminum protective film, laser cutting film, scratch protection, adhesive peel
---
Who This Is For
Procurement managers and manufacturing engineers who handle sheet metal, glass panels, aluminum profiles, or appliance finishes during production, warehousing, and transit need a reliable surface protection layer that stays intact through the full process and peels off cleanly.
Protective film is often treated as a minor purchase. Yet a film that is too thin tears during handling, while one that is too thick or over-adhered leaves residue or damages coatings.
This guide helps procurement teams choose the right PE protective film for their exact surface, process, and logistics cycle.
---
The Recommended Product: PE Protective Film for Metal & Glass
Polyethylene (PE) protective film is the industry standard for temporary surface protection on flat and profiled substrates during manufacturing, warehousing, transport, and installation. It is applied at the factory, remains through downstream processing, and is removed at the customer site or during final assembly.
PE protective film is manufactured from LDPE or LLDPE resin, with an acrylic or rubber-based pressure-sensitive adhesive coated on one side. It comes in transparent, black, or colored variants on rolls for manual or machine application.
Key Specifications
| Specification | Details |
|---|---|
| Base Material | LDPE / LLDPE resin |
| Adhesive Type | Acrylic PSA or rubber-based PSA |
| Thickness Range | 30–150 micron (commonly 30, 50, 70, 100, 120, 150 μm) |
| Adhesion (Peel Force) | Low (5–15 g/25mm), Medium (15–35 g/25mm), High (35–60 g/25mm) |
| Roll Width | Custom, up to 1,500 mm |
| Core Size | 25 mm or 76 mm (1" or 3") |
| Colors | Clear, black, blue, red, custom |
| UV-Resistant Option | Available for outdoor storage |
| Protection Period | 1–12 months (peelable, no residue after removal) |
| Certifications | RoHS, REACH compliance available on request |
---
Why PE Protective Film Outperforms Alternatives
1. Thickness Should Match the Process
A 100-micron low-tack film can protect better than a 50-micron high-tack film — but choosing 150 micron for every application wastes material and increases peel force. The right thickness depends on substrate roughness, handling frequency, and transportation distance.
2. Adhesion Is Defined by Formulation, Not Thickness Alone
Two films of identical thickness can have very different peel forces depending on adhesive formulation and coating weight. Always specify adhesion (g/25mm) separately from thickness, and request peel-force samples before bulk order.
3. UV Stabilization Matters for Outdoor Storage
For aluminum profiles or glass stored outdoors, UV-stabilized PE film prevents discoloration and adhesive degradation. Standard film degrades after 2–3 months in direct sunlight.
4. Clean Peel Is Essential for High-Gloss Surfaces
Anodized aluminum, polished stainless steel, and high-glass panels require low-adhesion film. Adhesive residue on these surfaces can require costly secondary cleaning.
---
Ideal Applications by Substrate
| Substrate Type | Starting Thickness | Protection Level | Notes |
|---|---|---|---|
| Smooth glass (indoor) | 30–50 micron | Light | Fingerprints, dust, light scratches |
| Glass (transport/installation) | 50–70 micron | General | Multi-handling, site installation |
| Polished stainless steel | 50–70 micron | General | Low-adhesion variant recommended |
| Anodized / powder-coated aluminum | 50–100 micron | Medium–Heavy | Higher adhesion for textured surface |
| Pre-painted metal / appliance | 50–70 micron | General | Color-matched film available |
| Laser-cut metal sheets | 70–150 micron | Heavy | Resists laser heat, no edge lifting |
| Heavy fabrication / sandwich panels | 100–150 micron | Extra heavy | High puncture resistance |
---
Verification Checklist Before Ordering
- Specify adhesion separately from thickness. Request test samples with measured peel force (g/25mm) for your exact substrate.
- Confirm protection period in writing. Adhesive can creep over 6–12 months. Verify the film remains peelable at the end of the specified period.
- Test on actual production surface. Lab tests differ from real-world results. Apply film on the actual batch before bulk order.
- UV rating for outdoor storage. Specify UV-stabilized PE film if panels are stored outdoors; standard film degrades in sunlight.
- Automated peel-off compatibility. If using automatic equipment, verify peel force matches your machine's tension specs.
- Roll core compatibility. Confirm core size (25 mm vs. 76 mm) matches your unwind equipment.
- Color selection. Transparent film allows visual inspection through the layer; black film hides defects but requires removal before visual quality checks.
---
How to Request a Quote
When contacting suppliers for PE protective film, provide:
- Substrate: (e.g., stainless steel 304, tempered glass, anodized aluminum)
- Surface finish: (polished, brushed, matte, powder-coated)
- Protection period: (3, 6, or 12 months)
- Storage conditions: (indoor warehouse, outdoor yard, overseas shipping)
- Application method: (manual or machine)
- Roll dimensions: (width, core size)
- Adhesion preference: (low-tack for high-gloss, high-tack for textured)
- Special requirements: (UV stabilization, anti-static, colored)
---
Related Resources
---
About Xiahong Packaging
Xiahong Packaging has produced custom PE films and industrial protective solutions since 2007. We offer LLDPE-based PE protective film in 30–150 micron thickness with adjustable adhesive formulations, UV-stabilized options, and roll widths up to 1,500 mm. OEM custom specifications available with sample testing.
Contact sales manager Chen Yanbin at +86-186-0592-3869 or fly@chinapolybags.com for technical consultation and samples.