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Elmet Technologies

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3M Dyneon™ FC 2120 Fluoroelastomer
Categories: Polymer; Thermoset; Fluoropolymer, TS; Rubber or Thermoset Elastomer (TSE)

Material Notes: 3M™ Dyneon™ Flouroelastomer FC 2120 can be compounded using standard water cooled internal mixers or two-roll mills with standard fillers and ingredients utilized in typical fluoroelastomer formulations. The “dry” ingredients should be blended before adding to the masticated gum. For best results, Dyneon FC 2120 should be banded on the mill several minutes prior to adding the blended dry ingredients. Once mixed, the compounded stocks have good scorch resistance and storage stability.
  • Composition: di-polymer of vinylidene fluoride and hexafluoropropylene
  • Low viscosity
  • Process targets: injection and transfer molding, extrusion and calendering
  • Proprietary incorporated cure technology

Information provided by Dyneon, A 3M Company

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.80 g/cc
Mooney Viscosity 23
@Temperature 121 °C
ML1+10
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore A 75Press Cure 5 minutes @ 177°C, Post Cure 24 hours @ 260°C; ASTM D2240
Tensile Strength at Break 2140 psiPress Cure 5 minutes @ 177°C, Post Cure 24 hours @ 260°C
Elongation at Break 200 %Press Cure 5 minutes @ 177°C, Post Cure 24 hours @ 260°C; ASTM D4645
100% Modulus 0.850 ksi
@Strain 100 %
Press Cure 5 minutes @ 177°C, Post Cure 24 hours @ 260°C
Compression Set 16 %
@Temperature 200 °C,
Time 252000 sec
O-rings -214; ASTM D395 Method B
 
Thermal PropertiesOriginal ValueComments
Transformation Temperature -18.0 °CTR10; ASTM D1329
 
Component Elements PropertiesOriginal ValueComments
Fluorine, F 65.9 %
 
Descriptive Properties
ColorOpaque Off-White
MH, Maximum Torque19 inch-lb100 cpm, 0.5° Arc, 6 Minutes @ 177°C, ASTM D5289
ML, Minimum Torque 0.9 inch-lb100 cpm, 0.5° Arc, 6 Minutes @ 177°C, ASTM D5289
SolubilityKetones and Esters
t`50, Time to 50% cure1.6 minutes100 cpm, 0.5° Arc, 6 Minutes @ 177°C, ASTM D5289
t`90 - Time to 90% cure2.4 minutes100 cpm, 0.5° Arc, 6 Minutes @ 177°C, ASTM D5289
ts2 - Time to 2 in-lb rise from min 1.4 minutes100 cpm, 0.5° Arc, 6 Minutes @ 177°C, ASTM D5289

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