Grease; Type M

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
Main area of
application
High Temp High Vacuum
Melting Point:
ASTM.D 566
°C
°F
42-52
108-126
40-60
104-140
Working temp. range °C
°F
10-30
50-86
10-30
50-86
Vapor Pressure
Torr @20°C
7x10-11 1.7x10-9
Relative Density 20°C 0.896 0.894
Radiation Resistance Yes Yes
Outgassing
Characteristics
ASTMS .E
595-90
TML
CVCM
<1.0%
<0.1%
-
-
Lubricity 4 Ball Test
ASTM .D 2763
(IP 239), Kg
150 140
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
Thermal conductivity,
w/m°C
0.216
-
0.194
-
Latent heat of fusion,
cal/g
15.1 18.7
Fusion Peak °C 32 34
Vol. resistivity, cm 1.2x1016 2.6x1016
Permittivity 2.3 2.1
Loss tangent <0.0001 <0.0001
Surface breakdown
at flash over, kV
24 28
Electric strength, V 730 850

*Too close to room temperature to measure

Apiezon Grease; Type M

Similar to Apiezon Grease Type L, but it contains more wax.
Grease M has an estimated vapor pressure @ 20°C of 2x10-9 torr, higher than Type L. Type M is recommended for applications where a grease of moderately low vapor pressure is required; such as for sealing ground joints on the backing side of oil diffusion pumps.

Manufacturer: Apiezon
Cat # Description MSDS Pack Price Quote Quantity
Cat #: 60700 Description: APIEZON GREASE, TYPE M Pack: 25 g Price: $88.00 Add to Quote:
Cat #: 60700-01 Description: Apiezon Grease Type M, 100G Pack: 100 g Price: $167.00 Add to Quote: