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PET release film characteristics, use and typical thickness


PET release film characteristics, use and typical thickness

Single-sided/double-sided PET release films are widely used in die-cutting and adhesive composites due to their excellent high-temperature resistance. The product adopts PET film as the base material, and is evenly coated on one side or both sides with a very thin release agent. The surface of the PET release film is smooth, smooth, uniform, free of wrinkles, particles, bubbles and other defects. The product has excellent physical properties, small thickness tolerance, and low thermal shrinkage. Has high tensile strength, stretch resistance, chemical inertness.
PET release film is generally used to isolate viscous materials and is widely used in electronics, inkjet supplies, reflective materials, tapes, self-adhesive waterproofing membranes and other industries.
Types of adhesive-type release films are classified into light-peel type, medium-peel type, and heavy-peel type in terms of the mobility of silicon and the peel force after heating. The release force can be controlled according to requirements. Good heat resistance.
Product thickness: 0.019mm, 0.025mm, 0.036mm, 0.05mm, 0.075mm, 0.1mm, 0.125mm, 0.175mm, 0.188mm
Controlled release force, high gloss, high cleanliness, residual adhesion 92%, good surface properties.
Release film characteristics when compounded with adhesive products
1) No migration phenomenon. Eliminates the risk of silicone release film transferring to the material to which it is attached
2) The tolerance of single-area or double-sided coating weight per unit area of ​​PET release film is very small
3) base film has excellent mechanical strength and chemical properties
4) High temperature resistance up to 180°C over a long period of time, up to 200°C within 10 minutes
5) High stability under extreme weather conditions
6) Extremely long shelf life
Typical thickness of PET release film and PET film
PET film, PET release film is commonly used in the electronics, adhesives, die-cutting, packaging and other industries, but because the market is not the same as the market for different thickness of the name is not the same, the unit's differences also lead to a variety of specifications The name is easy to confuse. In this case, one of the common thicknesses of PET film is shown. In order to distinguish the thickness clearly, it is necessary to first understand the thickness units commonly used for PET film and PET release film. The market's chief unit is as follows: 1mm = 100c (silk) = 1000um. The c (silk) unit is not a national standard unit and is more common in the hardware machinery industry. There are also individual companies using "bars" as a unit, 1 = 1c. The thickness of PET film commonly used in the following specifications: 0.012mm, 0.025mm, 0.036mm, 0.05mm, 0.075mm, 0.1mm, 0.125mm, 0.15mm, 0.175mm, 0.188mm, 0.25mm.
The thickness of the PET release film is actually divided according to the thickness of the PET film. Therefore, when ordering or consulting, we must make sure that the common units are used. Some companies are accustomed to the mm, some companies are accustomed to the c, but also some Use micron. The most common mistake is to make a mistake of 0.025mm and 0.25mm, 0.025mm=2.5c=25um, 0.25mm=25c=250um. I believe that many companies have encountered this situation, saying that 25 thickness and then received samples far from their own. In fact, this is just a unit difference.


PE protective film