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Pressure forming uses vacuum pressure to draw heated plastic into a mold and then air pressure to push the plastic into all the areas of the mold. The combination of negative vacuum pressure pulling and positive air pressure pushing results in consistent plastic parts, panels, and components with sharp detail and precise surface texture. The vacuum pressure forming process generally uses molds with movable sections for product removal. Some advantages of using the vacuum forming process over other plastic processes are cost effectiveness, shorter lead times, and reduced part weight. Therefore, vacuum forming is more conducive in allowing for more frequency updating of designs.
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