1. According to the material of paint, aluminum-plastic board can be divided into two categories: polyester aluminum-plastic board and fluorocarbon aluminum-plastic board, each of which can be roughly divided into metal paint surface and non-gold paint surface. Due to the difference in the material and structure of the paint surface, different requirements are placed on the thickness and viscosity of the protective film glue.
2. In the process of use, if the protective film's glue property is not properly selected or the quality of the glue is unstable, it will cause many problems for the user, such as not sticking, warping or sticking, and it cannot be torn off within the warranty period. .
3. The viscosity of the surface protective film should be determined according to the smoothness of the surface of the material. The surface of the material is smooth and smooth. The viscosity of the protective film is low, the surface of the material is rough, the particles on the coating surface are coarse, and the viscosity of the protective film is high. On the contrary, if you choose to use it improperly, it will result in the phenomenon that it is not pasted firmly or pasted too much and cannot be removed.
4. For a given surface, it is extremely important to choose the appropriate glue and viscosity, and the subsequent processing steps are the key to determining the viscosity. Subsequent processing generally includes bending and stamping. Generally, the low-viscosity protective film is used for the smooth surface, and the viscosity is 0.9N/cm; the medium-adhesive protective film is used for the medium-rough surface, and the viscosity is 1.2N/cm.https://www.pe-protectionfilm.com/