How to distinguish between good and bad silicone rubber gasket?
Silicone rubber gasket has a good elasticity, because the high elasticity mainly comes from the movement of the molecular chain of silica gel, so when buying silicone products, first look at the elasticity of silica gel products, so as to determine the quality.
The wear resistance is the production of molding silicone products with the surface of silicone products to suffer loss of the silicon rubber gasket surface due to external factors in general rarely rub off the surface of the product, does not affect the performance of the appearance, color, text. The quality of poor quality silicone products, surface characters easy to fall.
When the silica gel products are subjected to alternating stress (or strain), the structure and properties of the material change. With the development of fatigue process, the failure of silica gel products is called fatigue damage. Therefore, fatigue is also a way to distinguish the quality of silicone products.
Hardness and elongation stress reflect the rigid (stiffness) index of rubber material, and they are the necessary force for silica gel products to produce certain deformation. It is also a way to distinguish the quality of silica gel products.
Silicone products high tear strength anti destruction ability outstanding, long service life, less susceptible to outside interference, the tear strength of silicone products poor general performance gap is easy to appear in the tearing process, so as to force rapid expansion and cracking damage phenomenon.
