How to judge the waterproof effect of silicone sealing ring

At present, many electronic products, mechanical products and automotive products on the market are becoming more and more aware of waterproofing, and they have further requirements in terms of environmental protection. Therefore, waterproof silicone rings are one of the most common sealing silicone products in modern product design. When it comes to waterproofing, it depends on the practical effect of the silicone rubber ring, but what I want to put forward today is that the waterproof effect of the silicone sealing ring is mainly formed by what factors?

At first, many friends thought that the material of silicone products is soft and highly elastic. The waterproof effect mainly comes from the extrusion and fit of the silicone products to achieve the sealing effect. This is not completely wrong, but the structure will also create the finished product. For example, if the product size is too large or too small, the seal is not tight enough to achieve the sealing effect, and the sealing effect is smaller when the water pressure depth is added, and the water level is deeper. It can be seen that silicone sealing products still need to be combined with the actual situation to see whether the structure of the product can be integrated!

According to the years of experience of silicone product manufacturers, you may need to know these points if you want to seal silicone products to achieve a better waterproof effect!

1. Combine the size of the sealing part to predict the ± size of the sealing ring
2. What is the maximum sealing effect, what is the minimum sealing degree, and how big is the waterproof degree to feel the size of the product?
3. Choose different hardness and material according to the actual size and what material to seal with!
4. Whether the softness and size of the silicone can be placed in the sealing position, and how much the size can be enlarged to the maximum extent!
5. Different materials need to be selected for sealing in different environments, such as long-term exposure to water and intermittent exposure to water!