Eastman Tritan™ MXF421 Natural Medical Grade Copolyester

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Eastman Tritan™ MXF421 Natural Medical Grade Copolyester
Categories:	Polymer; Thermoplastic; Polyester, TP
Material Notes:	Eastman Tritan™ MXF421 copolyester has been formulated for medical devices and meets UL94 V2 compliance at 1.5 mm. Tritan MXF421 has passed ISO 10993 testing for cytotoxicity, skin sensitization, and intracutaneous reactivity. Tritan MXF421 has many outstanding features that include excellent toughness, hydrolytic stability, heat resistance, chemical resistance, and melt flowability to fill complex parts. Tritan MXF421 contains a mold release derived from vegetable-based sources. Applications Medical equipment Medical supplies Key Attributes Ease of processing Excellent chemical resistance Excellent hydrolytic stability Good toughness Information provided by Eastman.
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Physical Properties	Metric	English	Comments

Density	1.21 g/cc	0.0437 lb/in³	ASTM D792
Linear Mold Shrinkage	0.00300 - 0.00600 cm/cm	0.00300 - 0.00600 in/in	ASTM D955
Melt Flow	6.00 - 10.0 g/10 min @Load 2.16 kg, Temperature 260 °C	6.00 - 10.0 g/10 min @Load 4.76 lb, Temperature 500 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Tensile Strength, Yield	47.0 MPa	6820 psi	ASTM D638
Elongation at Break	>= 50.0 %	>= 50.0 %	ASTM D638
Tensile Modulus	1.71 GPa	248 ksi	ASTM D638
Izod Impact, Notched	10.0 J/cm	18.7 ft-lb/in	ASTM D256

Thermal Properties	Metric	English	Comments
Deflection Temperature at 0.46 MPa (66 psi)	94.0 °C	201 °F	ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)	81.0 °C	178 °F	ASTM D648
Flammability, UL94	V-2 @Thickness 1.50 mm	V-2 @Thickness 0.0591 in

Processing Properties	Metric	English	Comments
Melt Temperature	260 - 280 °C	500 - 536 °F
Mold Temperature	25.0 - 50.0 °C	77.0 - 122 °F
Drying Temperature	80.0 °C	176 °F
Dry Time	4.00 - 6.00 hour	4.00 - 6.00 hour

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PEATM4200 / 323823

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