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Ensinger PEI

Elkem (Bluestar Silicones) SILBIONE® LSR 4755 Liquid Silicone Rubber
Categories: Polymer; Thermoset; Silicone; Silicone Rubber; Liquid Silicone Rubber (LSR)

Material Notes: Description: SILBIONE® LSR 4755 is a self-bleeding healthcare grade liquid silicone rubber that creates a lubricious surface on the molded part after vulcanization.

Applications:

  • Molded medical applications for skin contact or <30 day implantation
  • General molded parts where high slip is required
  • Needleless valves
  • O-rings
  • Stoppers
  • Seals
  • Balloons
Features:
  • High slip surface
  • Long bleed life that helps prevent slit healing
  • Delayed bleed to prevent mold fouling
  • High clarity
  • Excellent mold release for shorter cycle times
  • Rapid cure at elevated temperatures
  • No post cure is needed
  • Customizable in a range of durometers and load levels to meet specific performance requirements

Information provided by Bluestar Silicones

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Physical PropertiesMetricEnglishComments
Specific Gravity 1.12 g/cc1.12 g/ccTP 013
Storage Temperature 5.00 - 32.0 °C41.0 - 89.6 °F
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 5353Press Cured, 5 min, 177°C; ASTM D2240
Tensile Strength 8.00 MPa1160 psiPress Cured, 5 min, 177°C; ASTM D412
Elongation at Break 572 %572 %Press Cured, 5 min, 177°C; ASTM D412
Tear Strength 37.9 kN/m216 pliPress Cured, 5 min, 177°C; ASTM D624, Die B
Compression Set 42 %42 %Press Cured, 5 min, 177°C; ASTM D395-98, Method B
 
Processing PropertiesMetricEnglishComments
Extrusion Rate 115 g/min115 g/minTP 031
Shelf Life 12.0 Month12.0 Month
 
Descriptive Properties
AppearanceTP 038
Resiliency (%)56Press 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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PBLUST075 / 191051

Proto3000 – 3D Engineering Solutions

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