Advantages of silicone protective film
Silicone protective film has relatively high light transmittance, and is generally used to protect the surface of the display screen. Nowadays, the three-layer 125 high-definition film that is often said on the market uses silicone adhesive;
Silicone protective film generally has self-adsorption effect, and is suitable for some relatively flat and smooth surface protection, such as mirror glass, display screen, plastic case, etc.;
In addition, the silicone protective film also has the advantage of fast exhaust, so many people prefer to use this type of silicone protective film when sticking to the display screen, because it is not like the protective film of the acrylic board, and it will be much easier to stick to it. Air bubbles affect the appearance more;
The glue of the silicone protective film is relatively stable, and it is not easy to cause glue stains under normal circumstances, and it has a certain heat-resistant effect, and can be used in places with high temperatures for a long time;
The corrosion resistance effect of the silicone protective film is also relatively good, and it can be applied to some places where corrosion resistance is required;
The super glue of the silicone protective film does not powder like the acrylic protective film, so its own cleanliness level is also very high.

Classification of silicone protective film
Classified according to the number of superimposed layers: single-sided silicone protective film, two-layer silicone protective film, three-layer silicone protective film;
Classified by viscosity (surface detachment rate): low-viscosity silicone protective film (0-5G), medium-viscosity silicone protective film (5-15g), high-viscosity silicone protective film (above 30g).
According to the needs of the market, PET silicone protective film can be glued according to the characteristics of the product in the case of sizing. Various types of silicone protective films with a detachment rate; such as 0-4g silicone protective film for disposable consumables, 5-8G silicone protective film Screen protective film; multi-functional 10-15g silicone protective film; special request 30g silicone protective film, etc.
Reasons and solutions for silicon transfer of silicone protective films Silicon transfer: All silicone protective films will form silicon transfer problems to some extent, which can only be reduced to a certain extent, but cannot be completely solved.

Specific ways to reduce silicon transfer include:
The corona value of the original film of the base material exceeds 50 dynes;
The glue should be cured thoroughly (add a small amount of curing agent, increase the oven temperature of the coating machine, and reduce the coating speed);
The amount of anchoring agent added is reduced by 10% on the basis of the original dose;
Products pasted with glass should not be stored in a high temperature and high humidity environment (no change for 24 hours under double 85 simulated environment);
Do not cover silicon-containing release film on the silicone adhesive base.
Variation of peel force
All kinds of pressure-sensitive adhesives will more or less form the attenuation of peeling force with the change of time. The silica gel remained stable after 24 hours. After 4 hours the variation curve decreased.

crystal point
The cleanliness of the die-cutting production workshop is too low;
The cleanliness of the coating production workshop is too low;
The precision of the glue filtration system is too low;
High-viscosity resin is easily hydrolyzed in a high-humidity environment, and it is very easy to form white powdery particles, which cannot be filtered out completely.