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When standard engineering plastics like PEEK or nylon fail under extreme heat or vacuum, engineers turn to . Known as the "pinnacle of high-performance polymers," Vespel polyimide (PI) operates in environments where other materials literally melt or outgas into oblivion.

Designing for the Extremes: A Guide to Sourcing DuPont™ Vespel® buy vespel

For quantities exceeding 500, DuPont can "direct-form" parts using high-pressure sintering. This reduces material waste and labor costs for large-scale production runs. 2. Choosing the Right Grade When standard engineering plastics like PEEK or nylon