Elkem (Bluestar Silicones) SILBIONE® LSR 4330 Liquid Silicone Rubber

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Elkem (Bluestar Silicones) SILBIONE® LSR 4330 Liquid Silicone Rubber
Categories:	Polymer; Thermoset; Silicone; Silicone Rubber; Liquid Silicone Rubber (LSR)
Material Notes:	Description: SILBIONE® LSR 4330 is a developmental 30 durometer, healthcare grade liquid silicone rubber designed for producing high clarity, high strength molded parts. Applications: General molded parts Medical applications for <30 day implantation Infant care; baby bottle nipples, pacifiers, sippy cup valves Food contact applications Features: Superior clarity High tear strength Excellent mold release for shorter cycle times Rapid cure at elevated temperature No post cure is needed Information provided by Bluestar Silicones
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Physical Properties	Metric	English	Comments

Specific Gravity	1.11 g/cc	1.11 g/cc	TP 013
Viscosity	270000 cP @Shear Rate 10 1/s	270000 cP @Shear Rate 10 1/s
	550000 cP @Shear Rate 1 1/s	550000 cP @Shear Rate 1 1/s
Storage Temperature	24.0 °C	75.2 °F

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	30	30	Press Cured, 5 min, 177°C; ASTM D2240
	31	31	4 hr post cure @ 200°C; ASTM D2240
Tensile Strength	9.31 MPa	1350 psi	4 hr post cure @ 200°C; ASTM D412
	9.65 MPa	1400 psi	Press Cured, 5 min, 177°C; ASTM D412
Elongation at Break	750 %	750 %	4 hr post cure @ 200°C; ASTM D412
	790 %	790 %	Press Cured, 5 min, 177°C; ASTM D412
100% Modulus	1.31 MPa @Strain 100 %	190 psi @Strain 100 %	Press Cured, 5 min, 177°C; ASTM D412
	1.38 MPa @Strain 100 %	200 psi @Strain 100 %	4 hr post cure @ 200°C; ASTM D412
Tear Strength	34.2 kN/m	195 pli	Press Cured, 5 min, 177°C; ASTM D624, Die B
	35.9 kN/m	205 pli	4 hr post cure @ 200°C; ASTM D624, Die B
Compression Set	10 %	10 %	4 hr post cure @ 200°C; ASTM D395B
	35 %	35 %	Press Cured, 5 min, 177°C; ASTM D395B

Processing Properties	Metric	English	Comments
Extrusion Rate	105 g/min	105 g/min	TP 001
Shelf Life	12.0 Month	12.0 Month

Descriptive Properties
Appearance	TP 038
Resiliency (%)	60		4 hr post cure @ 200°C, ASTM D2632
	62		Press Cured, 5 min, 177°C, ASTM D2632

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PBLUST069 / 191045

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