Apiezon Grease, Type N

Apiezon Greases are unique products, designed for use in high vacuum work:

  • Excellent lubricants
  • High purity, low vapor pressure – non-contamination in analysis
  • The working temperature range of each grease is dependent on the grade that is used
  • Easily applied, easily cleaned off
  • Silicone free. This benefits scientific users because the risk of sample contamination and consequently the risk of interference in analytical techniques such as infra-red or mass spctrometry, etc. is avoided
  • Approved by NASA and NATO
Typical Property L M N
Main area of
application
High Temp High Vacuum General Vacuum
Melting Point:
ASTM.D 566
°C
°F
42-52
108-126
40-60
104-140
42-52
108-126
Working temp. range °C
°F
10-30
50-86
10-30
50-86
-269-30
-452-86
Vapor Pressure
Torr @20°C
7x10-11 1.7x10-9 6x10-10
Relative Density 20°C 0.896 0.894 0.911
Radiation Resistance Yes Yes No
Outgassing
Characteristics
ASTMS .E
595-90
TML
CVCM
<1.0%
<0.1%
-
-
<1.0%
<0.1%
Lubricity 4 Ball Test
ASTM .D 2763
(IP 239), Kg
150 140 150
Viscosity of molten
grease, cP
50°C
100°C
766
62.3
413
29.8
-
-
Coefficient of
expansion per °C
over 20°C-30°C
0.00076 0.00075 0.00072
Thermal conductivity,
w/m°C
0.216
-
0.194
-
0.194
0.095
Latent heat of fusion,
cal/g
15.1 18.7 15.0
Fusion Peak °C 32 34 31
Vol. resistivity, cm 1.2x1016 2.6x1016 2.0x1016
Permittivity 2.3 2.1 2.3
Loss tangent <0.0001 <0.0001 <0.0001
Surface breakdown
at flash over, kV
24 28 27
Electric strength, V 730 850 820

*Too close to room temperature to measure

Apiezon Grease; Type N

Similar to Apiezon Grease Types: L and M, but Type N grease has a special additive which gives it a tenacious, rubbery consistency and provides an extra cushioning effect which absorbs vibrations in equipment, making N grease invaluable in fragile glass to glass joints, like burette taps, which continually risk fracture. Grease N is widely recognized and recommended as the cryogenic vacuum grease of choice.

Manufacturer: Apiezon
SKU: 60701
Pack: 25 g
$291.50