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Vacuum Pump Fluids
Krytox® PFPE Vacuum Pump Fluids
TMC 704 Silicone
Diffusion Pump Fluids
TMC 705 Silicone
Diffusion Pump Fluids
Halovac® CTFE Vacuum Pump Oils 

 

 

 

 

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Krytox VPF Material Data Sheet from TMC Industries

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Property Method Conditions Units 1506 1514 1525 1618 1625 16256
Average Molecular Weight** NMR - - 2400 3600 4600 4300 4600 11000
Vapor Pressure Knudsen 20°C
100°C
Torr 4x10-7
1x10-3
2x10-7
1x10-4
1x10-7
3x10-5
5x10-9
2x10-5
3x10-10
2x10-6
3x10-14
1x10-9
Kinematic Viscosity ASTM D445 20°C
50°C
100°C
200°C
mm2/s
(centistokes)
62
16
4.4
1.2
142
32
7.2
1.7
261
53
11
2.2
175
37
8
1.8
256
51
10
2.1
2717
444
63
8.4
Density - 20°C
50°C
100°C
200°C
g/cm3 1.88
1.82
1.73
1.54
1.89
1.83
1.7
1.55
1.90
1.84
1.75
1.56
1.89
1.83
1.74
1.55
1.90
1.84
1.75
1.56
1.92
1.87
1.78
1.61
Pour Point ASTM D97 - °C -45 -40 -35 -40 -35 -15
Distillation Range at .4 Torr ASTM D1160 10%
90%
°C 160
220
200
280
200
300
210
280
230
300
N/A
N/A
Heat of Vaporization Knudsen 150 to
250°C
Cal/gm. 9 7 6 7 6 N/A
Volatility at 22 hrs. ASTM D972 149 to
204°C
% 6
35
1
3
.5
nil
.1
8.9
.1
2.3
N/A
.3
Surface Tension   25°C dynes/cm. 17 18 19 18 19 19