Krytox® Flourinated Oils from TMC Industries Lubricants

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Krytox®
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Typical Properties of Krytox® Flourinated Oils

Density**

24°C (75°F), g/mL 204°C (400°F), g/mL 24°C (75°F), Ib/gal	1.86--1.91 1.52--1.60 15.5--16.0
Refractive Index,**	nD25

Surface Tension**

26°C (79°F), mN/m (dyn/cm)

16--20

Isothermal Secant Bulk Modulus
38°C (100°F) and 34.5 MPa (5000 psi)

MPa approximate	1034
psi approximate	150,000

Average Coefficient of Thermal Expansion

per °C (25-99)	0.00095-0.00109
per of (77-210)	0.00053-0.00061

Specific Heat, cal/g.C or Btu/lb.F

-18°C (0° F)	0.20--0.21
38°C (100°F)	0.23--0.24
99°C (210°F)	0.25--0.26
204°C (400°F)	0.29--0.30

Specific Heat, kJ/kg.K

-18°C (0° F)	0.84--0.88
38°C (100°F)	0.96--1.00
99°C (210°F)	1.05--1.09
204°C (400°F)	1.21--1.26

Specific Heat, kJ/kg.K

Thermal Conductivity**

Btu.ft/h.ft2.F at 38°C (100°F)	0.048--0.054
Btu.ft!h.ft2.F at 260°C (500°F)	0.404--0.051
W/m.K at 38°C (100°F)	0.0831--0.0934
W/m.K at 260°C (500°F)	0.0692--0.0883

* This table gives typical properties (not specifications) based on historical production performance. Viscosity may vary within ::t10%. DuPont does not make any express or implied warranty that these products will continue to have these typical properties.
** Increases slightly with increasing molecular weight.

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