The glass protective film has stable viscosity, is easy to tear and stick, is easy to use, does not leave residual glue, and protects the glass surface to prevent the floor from being scratched and soiled during transportation and installation. You can also customize the hole lines that are easy to tear by hand. But many people confuse glass protective film and tempered film, in fact, there is a big difference between them.
The basic composition of the glass protective film is: a polyester substrate (PET), one side is coated with an anti-scratch layer (HC), and the other side is an adhesive layer and a protective film. The glass film is usually composed of single-layer or multi-layer PET interlayer, with thicknesses: 2MIL (0.05mm), 4MIL (0.10mm), 7MIL (0.18mm), 11MIL (0.28mm), 14MIL (0.36mm), etc.; considering safety The thickness of the base material of the film should be above 2MIL. PET is a material with strong durability, strong moisture resistance, high and low temperature resistance.
It is clear and transparent, and has been processed by various processes such as metallization coating, magnetron sputtering, interlayer synthesis, etc., to become a film with different characteristics. Professional film manufacturers usually use their own patented adhesives for sandwich synthesis and installation of adhesive layers, mainly pressure-sensitive adhesives and water molecule activated adhesives.
A good tempered glass film can withstand the scraping of hard and sharp objects such as blades, scissors, keys, etc.; it has a very delicate and smooth feeling to the touch; its cutting requirements are relatively high. If the tempered glass film is almost pasted, you will find that it is asymmetrical with the size of the phone screen, there are gaps, and the hole must be too large.