50 micron clear PET single side silicone coated release film is mainly used in a variety of applications where a high-performance release
liner is required. The film's properties make it suitable for a wide range of applications, including:
1. Pressure-sensitive Labels:
The clear PET film's high-quality surface finish and excellent clarity make it an ideal choice for producing pressure-sensitive labels.
The film's silicone coating ensures that the label can be easily removed without leaving behind any adhesive residue.
2. Die-Cut Adhesive Components:
The release liner is suitable for die-cutting and producing adhesive components such as tapes and gaskets. The film's excellent release
properties ensure that the adhesive stays intact during processing, while the clarity of the PET film makes it easy to align the adhesive
component on the substrate.
3. Protective Films:
The film's high tensile strength and puncture resistance make it a perfect choice for producing protective films for various applications.
The release liner can be used to protect surfaces from scratches, abrasions, and other types of damage during manufacturing, storage,
and transportation.
4. Photo-Receptive Films:
The clear PET film's excellent clarity and superior dielectric properties are ideal for producing photo-receptive films used in the printing and
imaging industry.
5. Insulating Materials:
The film's high dielectric strength and excellent insulation properties make it an excellent choice for producing insulation components used in
the electrical and electronics industry.
Overall, the 50 micron clear PET single side silicone coated release film is a versatile material that can be used in various applications requiring
a high-performance release liner. The film's excellent dielectric and insulation properties, high tensile strength, and superb clarity are all qualities
that make it an ideal choice in the label, packaging, and electronics industries.
| S/N | Test Item | Unit | Standard | Value | Test Method |
| 1 | Thickness | μm | 50 ±2% | 49.72 | GB/T6672 |
| 2 | Color | - | Transparent | - | - |
| 3 | Tensile Strength | MD | Mpa | ≥180 | 187 | GB/T 1040.3 |
| TD | Mpa | ≥190 | 196 |
| 4 | Elasticity Modulus | MD | Mpa | / | 4144 |
| TD | Mpa | / | 4230 |
| 5 | Elongation @ break (%) | MD | % | ≤200 | 148 |
| TD | % | ≤200 | 139 |
| 6 | Thermal Shrinkage | MD | % | ≤1.5 | 0.96 | 150℃/30min |
| TD | % | ≤0.0 | 0.00 | 200℃/10min |
| 7 | Friction Coefficient | F/M-US | % | ≤0.65 | 0.5 | GB/T 10006 |
| F/M-UK | % | ≤0.50 | 0.3 |
| 8 | Haze | % | ≤5 | 2.99 | GB/T2410 |
| 9 | Luminousness | % | ≥86 | 89.4 | GB/T2410 |
| 10 | Glossiness | % | ≥100 | 133 | GB/T8807 |
| 11 | Wetting Tension | mN/m | ≥50 | 58 | GB/T14216 |
| 12 | Release Force | gf/25mm | 10-20 | 15 | Final 10, 20min. |
| 13 | Sub-sequent Adhesion Rate | % | ≥85% | 92 |
The difference between clear PET thermal cured silicone coated release film and clear PET UV cured silicone coated release film mainly
lies in the way they are cured, which affects their properties, applications, and processing conditions. Here are the key differences between
the two types of silicone coated release film:
1. Curing method:
Clear PET thermal cured silicone coated release film is cured using a thermal curing process, which applies heat to initiate the cross-
linking of the silicone coating to the PET film. Clear PET UV cured silicone coated release film is cured using UV radiation, which initiates
a photochemical reaction that cross-links the silicone coating to the PET film.
2. Processing conditions:
The processing conditions for clear PET thermal cured silicone coated release film and clear PET UV cured silicone coated release film
are different. Thermal curing requires high temperatures, which can limit the types of substrates that can be used. UV curing, on the other hand,
requires lower processing temperatures and can cure a wider range of substrates.
3. Properties:
Clear PET thermal cured silicone coated release film has better dimensional stability and higher temperature resistance compared to clear
PET UV cured silicone coated release film. It also has a longer shelf life and can be stored at room temperature for a more extended period
without affecting its performance. Clear PET UV cured silicone coated release film has excellent optical clarity and a lower tendency to
yellow over time.
4. Applications:
Clear PET thermal cured silicone coated release film is suitable for applications that require high-temperature resistance, dimensional stability,
and long-term storage properties, such as medical packaging, industrial applications, and automotive industries. Clear PET UV cured silicone
coated release film is suitable for applications requiring optical clarity, such as labels and graphics, and for applications that use more delicate
substrates.
The main differences between clear PET thermal cured silicone coated release film and clear PET UV cured silicone coated release film are the
curing method, processing conditions, properties, and applications. Factors such as substrate, temperature resistance, clarity, and storage
properties should be considered when selecting the appropriate silicone coated release film for a specific application.
In tape applications, the most common curing method used for PET release film is UV curing. This is because UV curing offers faster curing times,
lower energy consumption, and greater flexibility in terms of substrates compared to thermal curing. UV curing also allows for higher throughput
rates, making it suitable for high-volume production environments. However, there are certain kinds of tapes that require thermal curing of the
PET release film. For example, some high-temperature adhesive tapes require a PET release film that has been cured through a thermal process
to ensure that the film can withstand high temperatures without releasing the adhesive prematurely or degrading over time.
These types of tapes are mostly used in the automotive or electronics industry where high-temperature resistance is critical.
While UV curing is the most common method used in tape applications, there are some instances where thermal curing of the PET release
film may be required, particularly for high-temperature adhesive tapes. The choice of curing method depends on the specific requirements of the
tape application, including adhesive properties, substrate, and processing conditions.
The trend in curing methods of PET silicone coating processes is toward electron-beam (EB) and UV (ultraviolet) curing processes, which are
more environmentally friendly and energy-efficient than thermal curing processes. The shift to EB and UV curing is driven by several factors,
including:
1. Environmental concerns:
Thermal curing requires high temperatures, which can generate pollutants and greenhouse gases. In contrast,
EB and UV curing use less energy and produce fewer emissions.
2. Faster curing times:
EB and UV curing offer faster curing times than thermal curing, which increases production efficiency and reduces costs.
3. Controllability:
EB and UV curing offer finer control over the curing process, allowing manufacturers to tailor the properties of the coatings to
specific applications.
4. Increased substrate compatibility:
EB and UV curing can be used with a broader range of substrates than thermal curing, including temperature-sensitive materials.
5. Cost-effectiveness:
The investment cost of EB and UV curing equipment has dropped in recent years, making them more accessible and cost-effective for
manufacturers.
As the demand for more energy-efficient and environmentally friendly manufacturing processes continues to grow, we can expect to see an
increased adoption of EB and UV curing methods in the PET silicone coating process. While thermal curing is still widely used, the advantages
of EB and UV curing are likely to make them the preferred method for many applications in the future.
Digital Brochure (2023).pdf
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50 μm Clear PET silicone coated release film, available in both thermal or uv cure for tapes, labels and packaging etc. Images
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