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Polycarbonate vs copolyester: Makrolon 2558 vs Tritan MX731
Side-by-side comparison of Makrolon 2558 (Covestro) and Tritan MX731 (Eastman): biocompatibility, sterilization, FDA master files and data-sheet properties, each linked to its source.
- Makrolon 2558 (Covestro, PC): USP Class VI stated yes; gamma stated yes; EtO stated yes; steam autoclave stated yes.
- Tritan MX731 (Eastman, Copolyester): USP Class VI stated yes; gamma stated yes; EtO stated yes; steam autoclave not stated.
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Data comes from public supplier literature (cited on each grade page). A blank cell means not stated in the source, not "no". Always confirm with the supplier's current documentation before use.
Property rows are flagged when grades use different test standards or units, because those values are not directly comparable. Values are shown exactly as the data sheet states them; MedResin does not convert units. "Not stated" means the source does not state it, not "no".