What causes the permanent deformation of silicone products
During the production inspection of silicone products manufacturers, the performance testing of semi-finished products is particularly important, so let’s take a look at why the deformation of silicone products occur.
Silicone products are synthetic rubber products made of silicone rubber materials. Its main material is a solid silicone with relatively strong viscoelasticity. It does not mean that silicone will never deform. If it does not rebound for a long time, it will deform. The main reason for its deformation is determined by the material hardness of the silicone rubber products. The softer the material, the smaller the deformation. In industrial equipment, the deformation resilience of the O-ring is very important. The stretch rate is also important for some silicone products.
Take industrial silicone O-rings as an example. If they lose their stretch rate and deformation, they should be replaced in time to avoid unnecessary situations. There are mainly the following factors that affect the deformation of silicone products.
1. Long-term immobility will cause permanent deformation, long-term use under high pressure, and it is easy to deform for products with hard materials under high pressure.
2. The influence of stretch rate is determined by the hardness and softness of the product. Generally, the stretch rate of silicone rubber can reach up to 300% to 600% (softer material), but excessive stretching during use will directly cause deformation. It will cause permanent deformation due to loss of stretch, so it should not be stretched excessively during use, whether it is industrial silicone products, daily use silicone products or silicone accessories.
3. Affected by temperature. In a humid place, when silicone rubber products are working, they will gradually deform during stretching when they are used under humid and high temperature conditions. However, as the temperature adapts and drops, it will also cause silicone products to slight deformation. Therefore, whether it is industrial used silicone accessories or sealed silicone products, try not to allow silicone products to stretch for a long time except artificially.
The silicone products produced by our company have high elasticity and high stretch rate and are not easy to deform. If you have custom silicone products requirements, please feel free to email [email protected] .