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What should be paid attention to in the production of door and window sealing strips compared with TPE overmolded formula?

Time : 2020-05-25 Hits : 187

A: The melt index is different. The melt index of extrusion products is generally lower than that of injection molding. When the melt index is higher, it is not easy to build pressure when extruding, resulting in uneven discharge; in addition, the melt strength will be low. The case of broken bars. Other properties such as compression set, tensile strength, hardness, etc. are made according to customer requirements.