Why does the silicone molds get deformed?

“Deformation” is a phenomenon often encountered for silicone molds. Then, why the silicone molds get deformed is a problem worth exploring. In a few days ago, we talked about the three aspects of reasons which are inappropriate hardness, the lack of the protection of the outer membrane and high shrinkage for silicone rubber. At first, we should choose silicone rubber with suitable hardness for making molds. That is to say, choosing silicone rubber with high hardness to make molds for large size products and the soft silicone is applicable to small size products with detailed patterns. Then, you should make an outer mold which should be a layer silicone add a layer fiber glass or cloth, etc. to prevent the silicone molds from deformation. Next, you had better choose silicone rubber with low shrinkage which is not easily deformed. Today we will continue to explore other aspects of reasons for deformation.   The first reason for deformation may be that the silicone molds have been insufficiently aged or the rubber mold has been improperly stored. If the silicone rubber is no comprehensive care for aging, which will produce the problem not only deformed but also the greatly reduce of its quality and service life. So, please age the silicone molds thoroughly after the RTV silicone rubber has cured (The time for fully curing is better for 24 hours or even a week). Then, why do I say improper maintenance of silicone rubber is also easy to cause deformation? In the process of maintenance, especially in the maintenance of aging stage, if the silicone rubber has not been properly fixed abrasives, then the deformation will occur. In this case, it's better for silicone molds bounded with inner or outer abrasive together, so that it can completely prevent the phenomena of deformation during the stage of aging maintenance.     Secondly, it can be due to the reason of adding too silicone oil. We all know that silicone oil has played a role in diluting the viscosity of silicone. However, the content of silicone oil in fact directly determines the quality of the silicone rubber. If too much silicone oil content is added in the processing stage, it will lead to too high viscosity of the silicone oil. And too little silicone oil added will meet the silicone rubber having a poor quality. Therefore, the content of silicone rubber directly determines whether the silicone molds will deform, which belongs to quality factor. Normally we do not advise our customers to add any silicone oil into the silicone rubber. If it is necessary, the ratio must be 5%-10%. You can also try to add some silicone oil with high viscosity.   Shenzhen Hong Ye Jie Technology Co., Ltd. is recognized as the global leading in the manufacturer of high quality silicone rubber products in an unsurpassed variety of RTV-2 silicone, HTV silicone rubber, LSR, etc. Currently 95% of our products have been widely exported to America, Europe, Southeast Asia, Middle Eason and etc. and are well-received by the customer from more than 90 countries and regions. We supply the most suitable & superior silicone raw materials, but a reasonable price. Any of our silicone with quality problems will be replaced within 3 months after purchase. Besides, we also provide you the best free services and technical support. If any more information required, please feel free to contact with us at e-mail: info@szrl.net or tour our website:http://www.szrl.net, thank you!