Email: sales@bondsil.com
Tel:
Addr: H Building ,Xinwei The 3rd Industrial Park,Dalang Street,Longhua New District , Shenzhen City ,Guangdong Province ,China
What is the reason for the bubble in the production process of silicone product?
17 Jul 2023
There are often some abnormal conditions in the silicone production process, Kanglibang will understand the causes bubble and solutions, details are as follows:
1, the mold temperature is too high.
Solution: Adjust mold temperature and curing time.
2, The trapped gas may be caused by a defect in the mold design.
Solution: Optimize the mold structure or try to do several more exhaust.
3, The selected silicone is not applicable to the process requirements.
Solution：Change silicone rubber.
4, Too much or less vulcanizing agent added.
Solution: Change the vulcanizing agent add ratio.
5, There is dirt on the substrate surface.
Solution: Use solvent to clean. In addition, some auxiliary treatment can be done for the characteristics of some materials, such as nylon material, due to the water absorption of the material itself, long-term placement in a high temperature and high humidity environment leads to high water content of the material, resulting in poor bonding and foaming, the solution is to bake nylon before the primer, the general temperature is 120 degrees and bake for 30 minutes. Nylon if there is glass fiber, the baking temperature can be increased, and then the bottom coating can be cooled after baking.
The above content is the cause and solution of the common abnormal problem of the product process, if you want to know more, please contact Shenzhen Kanglibang consultation
