Multibase Multi-Flex® A 7455 ER TPE Thermoplastic Elastomer

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Multibase Multi-Flex® A 7455 ER TPE Thermoplastic Elastomer
Categories:	Polymer; Thermoplastic; Elastomer, TPE
Material Notes:	Features: Chemical Resistance, Good Colorability, Good Elasticity, High Electrically Insulating Flame Retardant Flexibility, Good Heat Stabilized Ozone Resistant Processability, Good UV Resistance, Good Processability, Good Forms: Pellets Processing Method: Extrusion Injection Molding Uses: Fuel Lines Information provided by Multibase
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Physical Properties	Metric	English	Comments

Specific Gravity	1.22 g/cc	1.22 g/cc	ASTM 792
Melt Flow	2.0 g/10 min @Load 2.16 kg, Temperature 230 °C	2.0 g/10 min @Load 4.76 lb, Temperature 446 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	78	78	10 seconds; ASTM D2240
Tensile Strength, Yield	8.27 MPa	1200 psi	Elastic; ASTM D412
Elongation at Break	500 %	500 %	Elastic; ASTM D412
Tear Strength	43.8 kN/m	250 pli	ASTM D624

Processing Properties	Metric	English	Comments
Middle Barrel Temperature	210 °C	410 °F
Front Barrel Temperature	227 °C	440 °F
Nozzle Temperature	235 °C	455 °F
Die Temperature	204 °C	400 °F
Melt Temperature	191 - 204 °C	375 - 400 °F
Mold Temperature	51.7 °C	125 °F
Drying Temperature	51.7 °C	125 °F
Dry Time	2 - 4 hour	2 - 4 hour
Injection Pressure	3.45 - 4.83 MPa	500 - 700 psi
Back Pressure	0.345 MPa	50.0 psi
Screw Speed	40 rpm	40 rpm

Descriptive Properties
Clamp Tonnage	1.5-2.5 tons/in²
Injection Rate	Fast
Suggested Max Regrind	0.5

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PMULTI045 / 53949

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