What is a Protective Film?
Protective film constitutes a temporary, thin plastic coating, primarily composed of polyethylene (PE) or polypropylene (PP), intended to shield surfaces from scratches, dust, moisture, and contamination during manufacturing, transportation, storage, or installation. It adheres securely to various substrates, including metals, glass, plastics, and painted surfaces, and can be removed effortlessly without leaving any residue. Its elasticity renders it suitable for intricate or curved shapes, while its resistance to UV light, chemicals, and low temperatures broadens its protective functions across multiple sectors, such as electronics, automotive, construction, and medical devices.
Initially developed for high-risk settings like aerospace, protective films have transitioned into essential components for commonplace items such as appliances, smartphones, and stainless-steel surfaces. With options for customizable adhesive strengths, color variations (from clear to tinted), and formulations that are antistatic or UV-resistant, these films provide a balance between surface protection and ease of use, simultaneously improving the aesthetic appeal and cleanliness of new products.
| Property | Unit | Typical Value | Test Standard |
|---|---|---|---|
| Film Thickness | µm | 100–250 (Total) | 3M LS 034, EN 1942 |
| Tensile Strength (MD) | N/cm | 25–31 | EN 14410, 3M LS 005 |
| Elongation at Break (MD) | % | 200–300 | EN 14410 |
| Peel Adhesion (180°) | N/25mm | 9–20 | EN 1939, FTM 9/14 |
| Dimensional Stability (80 °C) | mm | ≤ 0.5 (MD), ≤ 0.4 (CD) | GB/T 7125 |
| Shrinkage (80 °C, 30 min) | mm | ≤ 0.5 (MD), ≤ 0.4 (CD) | GB/T 7125 |
| Coefficient of Friction | — | 0.15–0.25 | ASTM D1894 |
| Water Vapor Transmission (WVTR) | g/m²·day | 50–70 | ASTM F1249 |
Why Choosing SupraPol as Your Supplier?
SupraPol, as a supplier of plastic products, prioritizes exporting high-quality products at reasonable prices to various parts of the world across five continents. One of our key advantages is providing consultation and guidance to our clients throughout the entire purchasing process, as well as assisting those who seek advice and detailed information.
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If you would like to place an order or request a price estimate, you can do so through this link. Also, if you need purchasing advice, you can contact our colleagues and experts via the contacts listed below.
Bella –
What thickness options are available for the protective film?
mahdi –
What thickness options are available for the protective film?
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