What are the main reasons for the aging of silicone seals used in automobiles?

Silicone seals are widely used sealing products, applied in various fields such as electronic appliances, mechanical equipment, automotive industry, etc., with excellent performance such as waterproof, dustproof, and sound insulation. However, sometimes the seal may become brittle, which can affect its sealing performance. So, what are the main reasons for silicone seals becoming brittle?

The material and formula of silicone seals determine their elasticity and stability during use in different environments. If the raw materials of silicone accessories do not meet the standards or there are deviations in the formula during the production process, it is easy to affect the long-term stability of silicone products. In addition, if the ambient temperature is too high or too low during the storage and use of seals, it can also easily lead to unstable performance of silicone materials, resulting in insufficient lifespan.

Silicone products may also become brittle during use due to excessive pressure or improper usage methods. For example, if the silicone material is excessively stretched or compressed during the assembly process, it is easy to cause deformation or breakage. In addition, if the seal frequently comes into contact with corrosive substances or high-temperature environments during use, it may also deteriorate, thereby affecting its performance and lifespan.

The design and manufacturing process also affect the risk of brittleness. If the design of the seal is unreasonable, such as complex structure or high curvature, it is easy to cause stress concentration during use, leading to brittleness. In addition, improper production operations by silicone product manufacturers, such as improper temperature and time control, can also affect the performance and stability of seals.

In summary, the reasons for the brittleness of silicone seals are complex, involving both materials and formulations, as well as the usage environment and methods, and are closely related to design and manufacturing processes. Therefore, in the selection and use of seals, it is necessary to strictly follow the specifications, pay attention to the ambient temperature and usage methods, and choose suitable products and manufacturers to ensure the quality and stability of the seals. At the same time, manufacturers of seals should also strengthen quality control and technological research and development, improve product reliability and stability, and provide users with better products and services.