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Midstate Mold & Engineering

Precision Plastic Injection Molders

PTFE

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What are the Best Thermoplastics for Heat-Resistant Parts?

A car engine with numerous heat-resistant plastic parts.

When considering options for heat-resistant parts, the first material that usually comes to mind is metal. Alloys tend to have high heat resistance, but the versatility of metals is limited. That’s why an increasing number of engineers are turning to heat-resistant plastics to fill roles in complex, high-performance applications. Heat-resistant thermoplastics also tend to have other beneficial characteristics that lend themselves to an extended lifespan beyond that of metal. Let’s take a look at some of the best thermoplastics for heat-resistant parts and their unique attributes.

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Finding Alternative Thermoplastics to PTFE

A pile of purple syringe PTFE membrane filters meant to signify alternative thermoplastics to PTFE

Since the late 1940s, polytetrafluoroethylene (PTFE) has grown in popularity throughout the years. PTFE doesn’t behave like any ordinary polymer. It boasts many unique properties that are often difficult to replicate. However, its processing limitations and the fact that it lacks some vital properties for certain applications have companies seeking alternatives to this thermoplastic. Over the years, new polymers have been developed to maintain similar PTFE properties while also filling in performance gaps. Let’s review some of these alternative thermoplastics to PTFE.

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