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MBS: medical grades

7 grades from INEOS Styrolution. This family is part of the Styrenics (ABS, ASA, MABS, MBS, SAN, SBC, SMMA, S-TPE) polymer group, which has the full comparison and sterilization breakdown.

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.

Grade	Maker	Family	USP VI	ISO 10993	Gamma	EtO	FDA file
Clearblend 145	INEOS Styrolution	MBS	✔	✔	✔	✔	DMF
Clearblend 165	INEOS Styrolution	MBS	✔	✔	✔	✔	DMF
Zylar 631	INEOS Styrolution	MBS	✔	✔	✔	✔	DMF
Zylar 960	INEOS Styrolution	MBS	✔	✔	✔	✔	DMF
Zylar 245	INEOS Styrolution	MBS	✔	✔	✔	✔	DMF
Zylar 550	INEOS Styrolution	MBS	✔	✔	✔	✔	DMF
Zylar 650	INEOS Styrolution	MBS	✔	✔	✔	✔	DMF