The main purpose of the protective film is to play a protective role. The application field is very wide. The common application fields are mostly in the industry. The household use only accounts for a small part. At the same time, the protective film plays a scratch-resistant and abrasion-resistant effect on mobile phone screens and automobile appearances. very effective.

Now the protective film can be said to be an indispensable product for all walks of life, and it is also common in life. Due to the continuous expansion of market demand, there are more and more types of industries such as metal, plastics, automobiles, electronic products, and logistics. The most common are polyester, polyethylene and augmented reality. Although they are different in materials and properties, they also have important points in practical applications. So when choosing, we must know how to distinguish them.





1. Classified by market:
(1) Traditional protective film
Such as galvanized steel sheet protective film, color steel sheet protective film, glass plate or plastic sheet protective film, etc. Such traditional protective films are mostly applications with low added value, have low performance and crystal point requirements, and are mostly glue-based protective films.

(2) Protective film for high-tech electronics industry
Such as dry film (DryFilm) or protective film used in wafer polishing process. This type of protective film usually needs to be produced in a clean room, and the requirements for crystal points are extremely strict. Only a few protective film manufacturers have sufficient technical capabilities to meet these requirements.

(3) PE protective film
PE protective film is a kind of protective film made of LLDPE. PE protective film has good air permeability and good viscosity. It is not easy to appear bubbles after use. The protective film without glue is also called electrostatic film. The protective film is mainly electrostatic adsorption and pasting method. This protective film has relatively weak viscosity and is very suitable for application in electroplating and electronic product processing and protection processes. It is worth mentioning that PE protective film is also one of Pincheng Adhesive's main protective film products.


2. According to the purpose, it can be divided into:
Digital product protective film, car protective film, household protective film, food preservation protective film, etc. With the popularization of mobile phones and other digital products in China, protective film has gradually become a general term for screen protective film, and its functions in the field of screen protective film are also varied.


3. According to the type of material, it can be divided into:
PP material, PVC material, PET material, AR material, PE material, OPP material, OCA material, etc.


4. According to the glue system, it can be divided into:
(1) Polyurethane (PU) glue series: good exhaust, good cohesion, no die-cutting powder, good aging resistance, environmental protection, good temperature resistance, and no residual glue.

(2) Acrylic type (Acrylic): good viscosity, easy to residual glue, poor exhaust, die-cutting and easy to drop powder.

(3) Silicone type (Silicone): Good high temperature resistance, good adhesion to the base, but not environmentally friendly.