Multibase TPSiV® 3111-70A Thermoplastic Silicone Vulcanizate

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Multibase TPSiV® 3111-70A Thermoplastic Silicone Vulcanizate (discontinued **)
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Thermoplastic Vulcanizate Elastomer (TPV); Polyurethane, TP; Silicone, Thermoplastic
Material Notes:	TPV product based on cross-linked silicone rubber dispersed into various engineering thermoplastics. The dispersion of the silicone internal phase is produced by dynamic “vulcanization” or cross-linking of silicone polymers within the thermoplastic organic phase and results in a stable droplet type morphology as shown in the TEM micrograph. TPSiV™ combines the elastomeric performance of silicone rubber with the melt re-processability and thermal and chemical resistance of engineering thermoplastics. Thermoplastic polyurethane based TPSiV™ (3010, 3011, 3111, 3040, 3340 grades) combine the benefits of excellent abrasion resistance from the polyurethane as well as the lower coefficient of friction and improved temperature properties from the silicone rubber. TPSiV™ 3111-70A: Designed for good stability in water contact applications and other aqueous solutions. Plasticizer free, and is currently being used in both NSF61 and FDA (Section 177.2600: 'Rubber articles intended for repeated use') applications. Information provided by Multibase. Multibase is now a DuPont brand; this grade was discontinued prior to DuPont's acquisition.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.15 g/cc	1.15 g/cc	ASTM D792

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	70	70	10 sec; ASTM D2240
Tensile Strength at Break	15.0 MPa	2180 psi	ASTM D412
Elongation at Break	600 %	600 %	ASTM D412
Tear Strength	45.6 kN/m	260 pli	ASTM D412
Taber Abrasion, mg/1000 Cycles	35	35	ASTM D1044
Compression Set	20 % @Temperature 22.8 °C, Time 79200 sec	20 % @Temperature 73.0 °F, Time 22.0 hour

Processing Properties	Metric	English	Comments
Rear Barrel Temperature	180 °C	356 °F
Middle Barrel Temperature	190 °C	374 °F
Front Barrel Temperature	200 °C	392 °F
Nozzle Temperature	205 °C	401 °F
Mold Temperature	10.0 - 30.0 °C	50.0 - 86.0 °F
Drying Temperature	80.0 °C	176 °F
Dry Time	2 - 4 hour	2 - 4 hour

Descriptive Properties
Injection Rate	Fast

**
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PMULTI313 / 93503

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