PE protective film is one of the most common materials in protective film, and it is also the most widely used polymer material in the world. PE protective film is mainly used in hardware industry, photoelectric industry, plastic industry, printing industry, wire and cable industry, electronic industry and mobile phone digital industry. PE protective film can be distinguished by thickness, color, viscosity and purpose. Users can choose suitable materials according to the products used. Many companies have different definitions about the viscosity of PE protective film. After years of industry experience, Shengbang has summarized the following classification of the viscosity of PE protective film:

PE protective film is mainly divided into: ultra-low viscosity protective film, low viscosity protective film, low viscosity protective film, medium viscosity protective film, high viscosity protective film and ultra-high viscosity protective film;

1. Ultra low viscosity protective film (i.e. micro bottom adhesion):

Peel strength (≤ 5g / cm), tensile ratio (> 400), easy to use, easy to paste and tear, and no residual glue. Suitable for organic plate, instrument, display screen, glass lens, plastic lens, etc

2. Low viscosity protective film

Peel strength (10-20g / cm), tensile ratio (> 400), stable adhesion, good adhesion, good re peeling performance and no residual glue. Suitable for steel mirror plate, titanium metal, smooth plastic plate, silk screen printing, famous brand, etc

3. Medium and low viscosity protective film

Peel strength (30-50g / cm), tensile ratio (> 400), stable adhesion, good adhesion, good re peeling performance and no residual glue. Suitable for furniture, Baoli board, stainless steel board, ceramic tile, marble, artificial stone, etc

4. Medium adhesive protective film

Peel strength (60-80g / cm), tensile ratio (> 400), stable adhesion, good adhesion, good re peeling performance and no residual glue. It is suitable for surface protection of fine grain frosted board and general difficult to stick materials

5. High viscosity protective film

Peel strength (80-100g / cm), tensile ratio (> 400), stable adhesion, good adhesion, good re peeling performance and no residual glue It is suitable for fine grain frosted board, aluminum plastic board, hard to stick plastic board, etc

6. Ultra high viscosity protective film

Peel strength (above 100g / cm), tensile ratio (> 400), high viscosity, water-based acrylic acid is selected as pressure-sensitive adhesive, which is easy to use, easy to paste and tear, and free of glue residue It is suitable for hard to stick materials such as coarse grain aluminum plate.