There are generally three methods for the application of silane coupling agents:

One is used as a surface treatment agent for the framework material; the second is added to the adhesive, and the third is directly added to the polymer material. From the perspective of giving full play to its effectiveness and reducing costs, the first two methods are better.

The application of silane coupling agent can be roughly summarized into three aspects:
1. Used for the surface treatment of glass fiber, it can improve the bonding performance of glass fiber and resin, and greatly improve the strength, electrical, water resistance, weather resistance and other properties of glass fiber reinforced composite materials. The improvement of the material's mechanical properties is also very effective. At present, the use of silane coupling agents in glass fibers is quite common. The silane coupling agents used in this area account for about 50% of the total consumption. Among them, the most used varieties are vinyl silane, amino silane, Methacryloxysilane, etc.

2. It is used to fill plastics with inorganic fillers. The filler can be surface treated in advance, or directly added to the resin. It can improve the dispersion and adhesion of the filler in the resin, improve the process performance and improve the mechanical, electrical and weather resistance properties of the filled plastic (including rubber).

3. Used as a sealant, adhesive and coating tackifier, which can improve their bonding strength, water resistance, weather resistance and other properties. Silane coupling agents can often solve the problem that certain materials cannot be bonded for a long time.