AdvanSource Biomaterials ChronoFlex® C 55D Biodurable Medical Grade Polyurethane

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USP Class VI Approved Adhesives for Medical Device Applications
Master Bond’s biocompatible adhesives are designed to meet the needs of medical device manufacturers. Compounds withstand various types of sterilization methods.

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AdvanSource Biomaterials ChronoFlex® C 55D Biodurable Medical Grade Polyurethane
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Polyurethane, TP; Polycarbonate-Urethane
Material Notes:	ChronoFlex® C is a family of premium polycarbonate aromatic biodurable thermoplastic polyurethane elastomers developed by AdvanSource Biomaterials Corporation. ChronoFlex® C medical-grade elastomers are manufactured under strict GMP conditions. Polycarbonate polyurethanes have been shown to minimize surface degradation such as stress induced microfissures. Aromatic materials have good solvent resistance and limited softening in the body. Information provided by AdvanSource Biomaterials Corporation.
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Physical Properties	Original Value	Comments

Density	1.20 g/cc	ASTM D792
Water Absorption	1.0 %	ASTM D570
Melt Flow	5.0 g/10 min @Load 2.17 kg, Temperature 210 °C	ASTM D1238

Mechanical Properties	Original Value	Comments
Hardness, Shore D	55
Tensile Strength, Ultimate	6000 - 7500 psi	Conditioned 7 days at RT/50% RH; ASTM D638
Elongation at Break	365 - 440 %	Conditioned 7 days at RT/50% RH; ASTM D638
100% Modulus	1.85 - 2.20 ksi @Strain 100 %	Secant; Conditioned 7 days at RT/50% RH; ASTM D638
300% Modulus	1.70 - 2.00 ksi @Strain 300 %	Secant; Conditioned 7 days at RT/50% RH; ASTM D638
Flexural Strength	550 psi	ASTM D790
Flexural Modulus	9300 psi	ASTM D790
Coefficient of Friction, Dynamic	0.80	ASTM D1894
Abrasion	0.035	% loss/1000 cycles; ASTM D1044

Electrical Properties	Original Value	Comments
Dielectric Strength	520 V/mil	ASTM D149

Thermal Properties	Original Value	Comments
Vicat Softening Point	80.0 °F	ASTM D1525

Processing Properties	Original Value	Comments
Zone 1	420 °F
Zone 2	435 °F
Zone 3	450 °F
Die Temperature	460 °F
Melt Temperature	460 °F
Drying Temperature	180 - 240 °F
Dry Time	3 - 4 hour
Moisture Content	<= 0.10 %
Dew Point	-40.0 °C

Compliance Properties	Original Value	Comments
USP Class VI	Yes	U.S.P. XXII

Descriptive Properties
Appearance	Clear to slightly cloudy
Recommended Sterilization	Gamma, E-Beam, Ethylene Oxide

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