Today we talk about the types of protective film glue

Acrylic glue

Acrylic glue, also called pressure-sensitive adhesive, is mainly composed of tincture. Tincture is a kind of macromolecular active substance, and temperature has a certain influence on molecular activity. The tincture content of the glue directly affects the use of the tape. Excellent peelability, strong cohesion of the film, high transparency, no degumming, no residue on the substrate, suitable for manufacturing low, medium and high viscosity protective film. Generally divided into solvent type and emulsifying type, which are commonly known as oil glue and water glue. Acrylic glue has a wide application range, and its stability is generally better. The disadvantage is that the exhaust is poor, the response to humidity is greater, and it is easier to leave white fog on the black surface, generally known as the ghost image.

Silica gel

The development of silica gel is developed on the basis of acrylic glue, because in recent years the demand for surface protection of 3C products has increased, and a large part of these applications have entered the so-called after-sales market, that is, in the store, and then by consumers DIY by yourself. In this part of the application, special emphasis is placed on the venting of the special price, so as to avoid the occurrence of bubbles during the filming process, and the silica gel meets the needs of this part of consumers. The silica gel is used for the fluorescence produced by the PET substrate. Mainly screen protector.

Rubber glue

As the name suggests, the main raw material of rubber glue is rubber, which is mainly produced by European and certain Japanese protective film manufacturers. The main feature is that the product is relatively tolerant, which means that a product with a viscosity can be applied to the product surface From smooth to rough, it has a much wider application range than acrylic glue protective film. Generally speaking, the viscosity of rubber-based protective film is only about four gears, while acrylic glue protective film is about 20g/25mm every interval. It is necessary to classify a product separately, so there are many types of acrylic glue protective film. For manufacturers' stocking, inventory, and application, the rubber-type protective film is much simpler. The second advantage of the rubber-type protective film is also because of its large tolerance, so it can use a higher viscosity protective film, and therefore it is especially suitable for post-processing complicated applications, such as stainless steel plates, aluminum plates and other stamping processes.