shrink rate

A part’s geometry, appearance, and performance can be largely impacted if a manufacturer doesn’t properly determine the shrink rate of the final product. It’s inherent in the plastic injection molding process, and if not accurately accounted for, it can result in timely and costly production line disruptions. Despite calculating the shrink rate, sometimes excessive shrinkage can occur, leading to further issues. Since it’s a complex process, let’s take a look at how and why plastic injection molding shrinkage affects the final product and the methods manufacturers use to compensate for it.

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