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Selection Method Of Viscosity Of Protective Film
- Aug 22, 2018 -

The basic principle of choosing the viscosity of the protective film is proper viscosity. Different surfaces require different viscosity, according to the different surface and pressure, viscosity rise rate is different, generally should be placed after enough time to peel the protective film to determine whether the viscosity is appropriate. The protective film used for rubber and acrylic acid is different. Rubber is relatively soft, acrylic acid is relatively hard, generally first consider the rubber protective film, and then acrylic protective film. For a given surface, it is extremely important to choose the appropriate adhesive and viscosity, and the subsequent processing steps are the key to determine the viscosity. Subsequent processing generally has bending stamping.

The protective film is smooth with a low viscosity protective film and a viscosity of 0.9N/cm. Medium viscosity film is used for medium rough surface with viscosity of 1.2N/cm.

The protective film is very rough. The surface is highly sticky, and the adhesive film is 1.5N/cm.

If laser cutting is necessary, the protective film should be selected with a viscosity of 1.9N/cm due to the heat shrinkage of the protective film.