Release film also known as peel off film or isolation film, it is a functional film made of plastic film (sheet) as the substrate, coated with release agent and adhesive on one or both sides of the film, so that it does not have adhesion or slight adhesion to specific materials under limited conditions of contact.

Usually, in order to increase the release force of plastic films, plasma treatment, fluorine treatment, or silicone oil release agent are applied to the surface of the film material. Generally, the substrate of plastic films (sheets) includes materials such as PET, PE, PP, PC, and PS,; It can exhibit extremely light and stable release force for various organic pressure sensitive adhesives (such as hot melt adhesives, acrylic adhesives, and rubber based pressure sensitive adhesives). Currently, the most common release film on the market is BOPET polyester release film.

Release film performance

1. There is no migration phenomenon, eliminating the danger of silicone resin release film transferring to the material it adheres to;

2. The tolerance for the weight per unit area of the single or double sided coating of the release film is very small;

3. The base film has excellent mechanical strength and chemical properties;

4. It has high stability in extreme weather conditions, with a high temperature resistance of around 130 ℃ for a long time and around 180 ℃ in one hour;

5. Long shelf life;

6. Adhesive based release PET can be divided into light release type, medium release type, and heavy release type based on the mobility of silicon and the changes in release force after heating. It can control the release force according to requirements and has good heat resistance.

Different materials of release film

HDPE release film: used for sealing tapes, waterproof rolls, etc.

LDPE isolation film: used for self-adhesive waterproof rolls, anti-corrosion materials, health care products, etc., with different colors such as white and gray.

HDPE anti sun film: silver coating film, waterproof roll facial mask, with excellent sunscreen and cooling effect, and excellent roof construction performance.

Red/green PE double-sided release film: used for foam tape.

BOPP release film: used for sealing tape and silent tape.

PET (stretch polyester) single and double side release film: double-sided tape, advertising spray painting material back glue protection, reflective material back glue protection, waterproof roll material, etc.

PET fluoroplastic release film: applied to silicone adhesive; PET green high-temperature tape coated with PET fluoroplastic release film has good release effect; For die-cutting and punching purposes.

Release film usage:

Release film can be widely used in IT electronics, semiconductor, home appliance manufacturing, printing, packaging, insulation, soft circuit printing, displays, printing films, window films, protective films, capacitor films, motor gaskets, etc.