40μm Opaque Red PE Release Film
Silicone UV cured release film designed for protective and packaging applications, tapes, labeling, and graphics.
Product Overview
This 40-micron opaque red PE silicone coated release film serves as a high-performance release liner for adhesive product manufacturing. The 40-micron thickness provides excellent flexibility and handling characteristics while maintaining durability.
Key Applications
- Label Industry: Backing material for self-adhesive labels in food and beverage, packaging, and industrial applications. The distinctive red color offers visual differentiation and appeal.
- Graphic Art Industry: Used for creating vinyl graphics, cut lettering, and decals. The red film enables easy identification of the liner from the adhesive side.
- Electrical and Electronic Industry: Protective tapes and insulating materials for electronic components and assemblies.
- Automotive Industry: Inner or outer liner for double-sided tape used in attaching body trims, molding, and automotive parts.
Manufacturing Process
Silicone Coating Application
- Film Preparation: Surface cleaning and treatment with corona discharge or plasma to enhance surface energy and adhesion.
- Silicone Application: Even application using spraying, dipping, or roll coating methods with precisely controlled viscosity and concentration.
- Silicone Curing: High-temperature curing above 120°C for uniform crosslinking and optimal adhesion to the PE substrate.
- Finishing: Precision trimming or die-cutting to required specifications using specialized equipment.
Technical Specifications
| Parameter |
Test Method |
Specification |
Result |
| Appearance |
Visual Inspection |
No air bubbles / stains / breakage / impurities |
Measured |
| Width (mm) |
GB/T 4456 |
960 ± 5 |
962 |
| Thickness (mm) |
GB/T 6672 |
0.040 ± 0.005 |
0.042 |
| Max. Tension TD (N/50mm) |
GB/T 1040.3-2022 |
≥ 30 |
44 |
| Max. Tension MD (N/50mm) |
≥ 30 |
52 |
| Color |
Colorimeter |
△E< 3 |
OK |
| Elongation @ break TD (%) |
GB/T 1040.3-2022 |
≥ 150 |
594 |
| Elongation @ break MD (%) |
≥ 200 |
479 |
| Surface Tension (Dyne) |
GB/T 14216-2008 |
≥42 dyne for each side |
46 |
| Release Force Inner (gf/25mm) |
Finat 10, TESA7475, after 20 min |
5-10 |
7 |
| Release Force Outer (gf/25mm) |
20-30 |
24 |
| Subsequent Adhesion Inner (%) |
Finat 11, NITTO 31B, after 24 hrs |
≥85 |
88 |
| Subsequent Adhesion Outer (%) |
≥85 |
90 |
UV Curing Technology
UV curing has emerged as a preferred method for silicone coating on PE film, utilizing ultraviolet light to initiate chemical reactions for curing and crosslinking instead of traditional heat-based methods.
UV Curing Advantages
- Faster Processing: Cures silicone coating in seconds compared to conventional heat curing methods.
- Energy Efficiency: Lower energy consumption and reduced carbon footprint for environmentally conscious manufacturing.
- Superior Coating Quality: Uniform silicone application with excellent adhesion and chemical resistance properties.
- Increased Productivity: Reduced production times through faster curing cycles.
- Substrate Protection: No heat damage to the PE film, preserving substrate integrity and properties.
Product Images
