Advanced Elastomer Systems Vistaflex® 671N Thermoplastic Rubber

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Advanced Elastomer Systems Vistaflex® 671N Thermoplastic Rubber (discontinued **)
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Thermoplastic Elastomer, Melt-Processible Rubber
Material Notes:	A translucent thermoplastic elastomer with snappiness. It can be processed using injection molding or extrusion processing techniques. Key Features: Flex modulus (1% Secant) 9.0 MPa (1300 psi); Vicat softening point, 60°C (140°F); Melt flow rate (190°C [374°F], 2160 g [76 oz], 2.5 g [0.08 oz]/10min); Excellent PE and PP modifier for improved impact and flexibility; Smooth part appearance; Snappy 'rubber band' performance; Approved for food contact; Low rubber gel contact for film applications Additional processing comments: Cycle times: initial inject 0.5 to 5 sec; secondary inject 1.5 to 10 sec. Initial inject pressure: high; just short of flash. Inject speed: just short of flash. Values below are for injection molded plaques, side gated, 82.6 mm x 117.5 mm x 3.0 mm. Tensile properties measured across flow. Data provided by Advanced Elastomer Systems. Advanced Elastomer Systems is now a part of ExxonMobil. This grade was removed from the Advanced Elastomers Systems standard product line before the ExxonMobil acquisiton.
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Physical Properties	Original Value	Comments

Density	0.910 g/cc	TPE-0105 (ASTM D792)
Melt Flow	2.5 g/10 min @Load 2.16 kg, Temperature 190 °C

Mechanical Properties	Original Value	Comments
Hardness, Shore A	61	5 Second; TPE-0169 (ASTM D 2240)
Tensile Strength, Ultimate	15.3 MPa	TPE-0153 (ASTM D 412)
Elongation at Break	850 %	TPE-0153 (ASTM D 412)
100% Modulus	0.00170 GPa @Strain 100 %	TPE-0153 (ASTM D 412)
Flexural Modulus, 1% Secant	0.00900 GPa
Graves Tear Strength	35.0 kN/m	TPE-0056 (ASTM D 624)

Thermal Properties	Original Value	Comments
Vicat Softening Point	60.0 °C
Brittleness Temperature	<= -60.0 °C	TPE-0089 (ASTM D 746)

Processing Properties	Original Value	Comments
Rear Barrel Temperature	138 °C
Front Barrel Temperature	143 °C
Nozzle Temperature	149 °C
Melt Temperature	154 °C
Mold Temperature	21.0 - 49.0 °C

**
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