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What should I do if the injection-molded thick product is sunken?
If it is nylon products, it can be solved by adding anti-sag additives, which are generally around 5%. This is a relatively simple and effective method. There is also the adjustment of processing technology, which is more complicated and sometimes it can't be solved after adjustment. The assistant to prevent sagging is POLYMSJ. The solution is to increase the melt strength of nylon, so that it can maintain a certain strength in the molten state and the cooling time is more uniform, thus avoiding sagging of products.