mold flow analysis

Help Guide

Material Shrinkage Guide

Plastic naturally shrinks after the injection molding process is completed and the plastic cools. The amount of shrinkage is based on the properties of the polymer used in the process. Understanding typical material shrink ratios for the most common polymers can help you choose the right material to maximize your part success during the plastic injection molding process.


material shrinkage guide

Complete the form to download our one-sheet Material Shrinkage Guide which will help you understand:

  • Typical shrink rates for common materials
  • Basics about material shrinkage and how it impacts finished plastic parts
  • Additional considerations to help achieve your design intent

Quickparts sales engineers are always available to consult on your project, whether you need help with material selection, tips on manufacturability, or support determining the appropriate finish.

Fill out this quick form to get access to your copy


Quickparts supports small part runs as well as bridge and long-term production needs. If you have an immediate project and would like to get pricing, click here to request a custom quote to get started.

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