Silica gel products yellow, this is a common problem, I do not know if you found that transparent silica gel mobile phone case with a long time will appear yellow phenomenon, this is why? Why transparent silicone phone case will appear yellow? And this yellowing is something we can control? What's the solution? This has become a question in your mind, today, let the Dongguan silicone products factory to tell you.
First of all, it may be the quality of silica gel raw material itself, generally speaking, our silica gel raw material will put some anti-flavin, is to prevent silica gel products become yellow, but after molding or found the edge yellow, then this time may be because of silicone raw material in the anti-yellow raw material problems.
Second, general silicone raw materials are hard to avoid after forming a little yellow color, if the silicone raw material is better then the color difference is very small, but if the silicone raw material is bad, so yellow is difficult to avoid, so sometimes you even joined a lot of fight flavin, but due to a problem of silicone raw materials or is likely to turn yellow.
In addition, may also be a production process, if at the time of molding production mold temperature too high or the vulcanization process for a long time, so may also lead to the color of the silicone products become yellow, this needs us in that we have produced results strict control in the production of mold temperature and curing time, without control, there will be a lot of situation happened!
