In modern industrial production and daily life, solvent-based silicone release agents are the key "invisible guards" to ensure the quality and function of many products. From mobile phone protective films to express bills, from baking paper to car interior tapes, it plays an indispensable role.


The core of solvent-based silicone release agents is composed of silicone polymers, crosslinkers, catalysts and organic solvents. Silicone polymers have extremely low surface energy. This unique property gives them excellent release properties, just like putting a "smooth coat" on the surface of the material, allowing sticky substances to be easily separated. Organic solvents, as carriers, can dissolve silicone polymers and evenly coat them on the surface of the substrate to form a release layer that is only a few microns thick. After the solvent evaporates, the crosslinker and catalyst work together to cause the silicone polymer molecules to crosslink with each other to form a stable network structure, thereby ensuring long-term stability of the release effect.


This type of release agent is widely used. In the packaging industry, it is the "standard" of food-grade release paper, used for baking paper and candy wrapping paper, which can prevent food from sticking and meet strict safety standards; in the electronics field, it helps produce mobile phone protective films and screen tapes to ensure accurate product fitting; in the automotive industry, it provides release support for interior tapes and withstands complex environments such as high temperature and humidity.


However, solvent-based silicone release agents also have their own "shortcomings". Because they contain organic solvents such as toluene and xylene, they will volatilize organic waste gas during use, posing a threat to the environment and human health, and there is also a risk of flammability and explosion; at the same time, its curing requires heating to cause the solvent to evaporate, which has high energy consumption and low production efficiency. With increasingly stringent environmental protection requirements, the industry is constantly exploring new technologies such as water-based substitution and UV curing. However, in areas with extremely high requirements for release accuracy and weather resistance, solvent-based silicone release agents still occupy an important position with their irreplaceable performance advantages