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Ensinger PEI

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Momentive Performance Materials Silopren LSR 3186 50 TP3651 Liquid Silicone Rubber
Categories: Polymer; Thermoset; Silicone; Silicone Rubber; Liquid Silicone Rubber (LSR)

Material Notes: Silopren LSR 3186/50 is a two-component liquid silicone rubber for injection molding processes. This material is an excellent candidate to consider for the manufacture of elastomeric articles requiring self-lubricating properties. The self-lubricating effect is achieved by a fluid which exudes out of the vulcanizate over an extended period of time. It typically starts between a few hours and one day after vulcanization. Silopren LSR 3186/50 liquid silicone rubber shows a low compression set after vulcanization without post-curing. Vulcanizates consisting of Silopren LSR 3186/50 liquid silicone rubber are typically distinguished by the following properties: low compression set without post-cure, self-lubricating properties, low viscosity, fast cure, high thermal stability, outstanding resistance to aging, easy to color. Because of the outstanding properties Silopren LSR 3186/50 liquid silicone rubber is an excellent candidate to consider for use in wire harness applications for the following elastomeric articles: cable seals, grommets, gaskets, plug seals.

Information provided by Momentive Performance Materials.

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Physical PropertiesOriginal ValueComments
Density 1.12 g/ccDIN 53 479 A
Viscosity 420000 cPUncured. B-component. gamma=10s-1 at 20°C.; DIN 53018
 460000 cPUncured. A- component. gamma=10s-1 at 20°C.; DIN 53018
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore A 49DIN 53 505
Tensile Strength 9.70 MPaDIN 53 504 S2
Elongation at Break 600 %DIN 53 504 S2
Tear Strength 43.8 kg(f)/cmASTM D 624
Compression Set 25 %DIN ISO 815
 
Processing PropertiesOriginal ValueComments
Processing Temperature 175 °C
@Time 601 sec
Vulcanization as Tested; Die B
Pot Life 4320 min
@Temperature 20.0 °C
Closed vessel
 
Descriptive Properties
AppearanceTranslucentA-component
 TranslucentB-component
Fluid Content (%)1Uncured. A-component
 1Uncured. B-component
Mix Ratio1:1 A:BAs Tested

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PMOMEN9983 / 265798

Proto3000 – 3D Engineering Solutions

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