Selecting the optimal thermoplastic material can be challenging and my aim with this post is to provide you with a practical guide which leads you fast through the selection journey. For a more detailed approach, I created the Polymer Selection Funnel methodology which you can check out here and practical examples in the start here section.
Improper selection of plastics for the application is the leading cause for plastic part failure and since most parts fail along weld lines or knit lines, optimal mould design including filling and processing of the part are crucial too.
The fact that there are almost 100 generic “families” of plastics and additionally with blending, alloying, and modifying with additives results in 1,000 sub-generic plastic types leads to the following crucial question: How should you choose the optimal polymeric material for your part?
Also, selecting the wrong polymer for your product may result in additional financial resources, since the selection process needs to be repeated (including making new tools) or even worse, product failure leads to claims and recalls. The following guide will help you to prevent the major mistakes and if you want to be sure, you can always reach out to a plastic expert to review your selection or help you to select the optimal grade.
Figure 1 and 2 present the five practical step guide for selecting your optimal thermoplastic in a structured way.
DOWNLOAD the guide as pdf here.
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| Figure 1: Practical 5 step guide for selecting thermoplastics- step 1 and 2. |
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| Figure 2: Practical 5 step guide for selecting thermoplastics - step 3, 4, and 5. |
Thanks for reading and #findoutaboutplastics
Greetings,
Herwig
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Literature:
[1] https://www.findoutaboutplastics.com/2018/03/polymeric-material-selection-critical.html
[2] https://plasticexpert.com/learn/choosing-the-right-plastic/
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