Dental instrument manufacturer chose PPSU handles for their 5x autoclave cycle life vs PC.
Dental hand-piece handles, mirror handles, and probe handles are autoclaved between every patient. Polycarbonate handles haze and crack after 200-300 cycles. PPSU handles last 1000+ cycles.
PPSU machines well with carbide tools at moderate speeds. Avoid coolants containing aggressive solvents (some chlorinated coolants cause stress cracking). Water-based coolant is preferred.

260°C continuous service, autoclave-stable, FDA grade — for medical sterilization trays and high-temp baby bottles.
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