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Elmet Technologies

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Dow Silastic® 9390-70 LSR Oil-Resistant Liquid Silicone Rubber
Categories: Polymer; Thermoset; Silicone; Silicone Rubber; Liquid Silicone Rubber (LSR)

Material Notes: SILASTIC™ 9390 Series LSRs provide good oil resistance in an off-white, injection-molding-grade elastomer for a range of air- and fluid-sealing applications.

Product applications:

  • Oil-resistant applications
  • Seals, O-rings, diaphragms
Key Features:
  • Good oil resistance
  • Low compression set
  • Off-white

Former Dow Corning brand.

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.47 g/ccASTM D792
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore A 68ASTM D2240
Tensile Strength 8.00 MPaASTM D412
Elongation at Break 240 %ASTM D412
Tear Strength 16.0 kN/mASTM D624 DIE B
Compression Set 20 %
@Temperature 150 °C,
Time 252000 sec
NPC; ASTM D395
 
Processing PropertiesOriginal ValueComments
Extrusion Rate 60.0 g/minMIL-S-8802D
 
Descriptive Properties
Oil immersion (% volume change)32IRM 903; (70 hr @ 150°C), ASTM D471
 5ASTM 1; (70 hr @ 150°C), ASTM D471

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PDOW9938 / 233141

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