Momentive Performance Materials Silopren LSR 2841 TP 3601 Liquid Silicone Rubber

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Momentive Performance Materials Silopren LSR 2841 TP 3601 Liquid Silicone Rubber
Categories:	Polymer; Thermoset; Silicone; Silicone Rubber; Liquid Silicone Rubber (LSR)
Material Notes:	Silopren LSR 2841 TP 3601 is a two-component liquid silicone rubber for the production of key pads by injection molding processes. Due to the low hysteresis of Silopren LSR 2841 TP 3601 the key pads shows especially long service life. Features: high reactivity. Long service life at dynamic stress. Very good flow ability. Excellent dielectric behavior over a wide range of temperatures. High stability and flexibility at low temperatures. Excellent stability to ozone and ultraviolet light. Not readily combustible, does not melt or drip. Easy to add pigment with LSR Color Pastes. Applications: Because of the outstanding properties Silopren LSR 2841 TP 3601 liquid silicone rubber is particularly suitable for the production of key pads and articles with high dynamic stress like diaphragms Information provided by Momentive Performance Materials.
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Physical Properties	Metric	English	Comments

Density	1.07 g/cc	0.0387 lb/in³	DIN 53 479 A
Viscosity	120000 cP	120000 cP	Uncured. A- part; DIN 53018
	120000 cP	120000 cP	Uncured. B-part.; DIN 53018

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	40	40	DIN 53 505
Tensile Strength	6.00 MPa	870 psi	DIN 53 504 S2
Elongation at Break	550 %	550 %	DIN 53 504 S2
Tear Strength	21.0 kN/m	120 pli	ASTM D 624

Electrical Properties	Metric	English	Comments
Arc Resistance	<= 250 sec	<= 250 sec	DIN VDE 0441, part 1

Processing Properties	Metric	English	Comments
Processing Temperature	175 °C @Time 601 sec	347 °F @Time 0.167 hour	Vulcanization as Tested; Die B
Pot Life	4320 min @Temperature 20.0 °C	4320 min @Temperature 68.0 °F	Closed vessel

Descriptive Properties
Color	Colorless		Uncured. A-part.
	Colorless		Uncured. B-part
Mix Ratio	1:1 A:B		As Tested
Tracking Resistance	1A 3.5 Class

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PMOMEN9982 / 265797

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