Table C.4 Elastomer Compatibility

Agent

Silicone

F-silicone

Neoprene

Fluorocarbon

Nitrile

Nitrile (low T)

FC-116, C2F6

G/G

G/G

G/G

B/G

F/G

B/G

FC-218, C3F8

G/G

G/G

G/G

B/G

F/G

B/G

FC-31-10, C4F10

G/F

F/G

F/G

B/F

B/F

B/F

FC-318, c-C4F8

G/G

G/G

G/G

G/G

F/G

F/F

HFC-236fa, C3H2F6

G/F

G/B

B/B

B/B

B/F

B/B

HFC-32-325*

G/F

B/G

F/G

B/G

B/G

B/G

HFC-227ea, C3HF7

G/F

G/F

F/G

B/F

B/G

B/B

HCF-134a, C2H2F4

G/F

G/F

F/G

B/G

B/G

B/G

HFC-125, C2HF5

G/G

B/G

G/G

B/F

B/G

B/G

HCFC-22, CHF2Cl

B/F

G/F

B/G

B/F

B/B

F/B

HCFC-124, C2HF4Cl

B/B

G/F

B/F

B/F

B/F

B/F

NOTE: G, F, and B mean good, fair (i.e., between good and bad) and bad, respectively. In this context, a good solvent is one that does not diminish the desired behavior of an elastomer or lubricant. Two measures are given for each, representing the separate mechanical and sorption methods of characterization. See text.

* HFC-32-325 is an azeotrope of CH2F2 and C2HF5.

Table C.5 Lubricant Compatibility

Agent

Krytox 240AC

Braycote 600

Braycote 807

FC-116, C2F6

F/F

G/F

F/F

FC-218, C3F8

B/G

B/G

B/G

FC-31-10, C4F10

B/F

B/B

B/B

FC318, c-C4F8

B/F

B/F

B/F

HFC-236fa, C3H2F6

G/G

G/G

G/G

HFC-33-125*

G/G

G/G

G/G

HFC-227ea, C3HF7

B/F

G/F

G/F

HFC-134a, C2H2F4

B/G

B/F

B/G

HFC-125, C2HF5

G/F

G/G

G/G

HCFC-22, CHF2Cl

B/F

B/G

F/F

HCFC-124, C2HF4Cl

G/G

G/G

G/G

NOTE: G, F, and B mean good, fair (i.e., between good and bad) and bad, respectively. In this context, a good solvent is one that does not diminish the desired behavior of an elastomer or lubricant. Two measures are given for each, representing the separate mechanical and sorption methods of characterization. See text.

* HFC-32-125 is an azeotrope of CH2F2 and C2HF5.



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