Weather resistance: A good silicone sealant should be able to resist external environmental factors such as ultraviolet rays, moisture and climate change to maintain long-term performance stability.

Thermal conductivity: In some applications with high heat dissipation requirements, the silicone sealant may need to have good thermal conductivity to help conduct and dissipate heat.

Paintability and Compatibility: A good silicone sealant should be easy to apply and compatible with other materials such as paints, glues or cleaners to ensure a good seal.

Health and environmental protection: Modern silicone sealants pay more and more attention to health and environmental protection. Therefore, some high-quality products will use low-volatile organic compounds (Low-VOC) or environmentally friendly formulas to reduce the adverse impact on indoor air quality.

Water resistance: In humid environments, silicone sealants need to have good water resistance to ensure that the sealing effect will not be lost due to moisture entering the sealing area.

Overall, a silicone sealant is only as good as its ability to provide the desired performance and durability in a particular application. Selecting the right silicone sealant requires consideration of factors such as application requirements, environmental conditions, and material compatibility. Therefore, when shopping for a silicone sealant, it is advisable to study product specifications and performance tables carefully to ensure you choose the product that best suits your needs.