CPT C-Flex® R70-051 Clear Biocompatible TPE

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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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CPT C-Flex® R70-051 Clear Biocompatible TPE
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Thermoplastic Elastomer, Melt-Processible Rubber
Material Notes:	C-Flex® is a family of patented thermoplastic elastomers which range in hardness from 5 shore A to 95 shore A. C-Flex® TPE's are biocompatible polymer blends which meet or exceed the current United States Pharmacopoeia Class VI test requirements. C-Flex® does not contain latex rubber, polyvinyl chloride, silicone rubber, or polyurethane. Information provided by Consolidated Polymer Technologies.
Key Words:	SEBS
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Physical Properties	Original Value	Comments

Specific Gravity	0.900 g/cc	ASTM D 792
Linear Mold Shrinkage	0.018 - 0.020 cm/cm
Melt Flow	5.9 g/10 min	Condition E; ASTM D 1238

Mechanical Properties	Original Value	Comments
Hardness, Shore A	75	1 sec.; ASTM D 2240
Tensile Strength at Break	1058 psi	ASTM D 412
Elongation at Break	609 %	ASTM D 412
100% Modulus	0.370 ksi @Strain 100 %	ASTM D 412
300% Modulus	0.570 ksi @Strain 300 %	ASTM D 412
Tear Strength	130 pli	Die C; ASTM D 624
	150 pli	Notched, Die B; ASTM D 624
Taber Abrasion, mg/1000 Cycles	7.6	Federal Test Method Standard, 405
Compression Set	28 % @Temperature 23.0 °C	ASTM D 412
	59 % @Temperature 70.0 °C	ASTM D 412
Tensile Set	37 %	at 300% elongation; ASTM D 412
	123 %	at break; ASTM D 412

Thermal Properties	Original Value	Comments
Brittleness Temperature	-82.0 °F	ASTM D 746

Optical Properties	Original Value	Comments
Haze	59 %	ASTM D 1033A
Transmission, Visible	88 %	ASTM D 1033A

Processing Properties	Original Value	Comments
Processing Temperature	325 - 400 °F	Extrusion Temperature
Middle Barrel Temperature	300 - 425 °F	Injection molding cylinder temperature
Drying Temperature	150 - 200 °F	Desiccant type
Injection Pressure	300 - 1000 psi

Compliance Properties	Original Value	Comments
USP Class VI	Yes

Descriptive Properties
Sterilization methods:	Steam/Autoclave, Cobalt 60, Ethylene Oxide

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PCPT17 / 29112

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