Grease; Type L

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
Main area of
application
High Temp
Melting Point:
ASTM.D 566
°C
°F
42-52
108-126
Working temp. range °C
°F
10-30
50-86
Vapor Pressure
Torr @20°C
7x10-11
Relative Density 20°C 0.896
Radiation Resistance Yes
Outgassing
Characteristics
ASTMS .E
595-90
TML
CVCM
<1.0%
<0.1%
Lubricity 4 Ball Test
ASTM .D 2763
(IP 239), Kg
150
Viscosity of molten
grease, cP
50°C
100°C
766
62.3
Coefficient of
expansion per °C
over 20°C-30°C
0.00076
Thermal conductivity,
w/m°C
0.216
-
Latent heat of fusion,
cal/g
15.1
Fusion Peak °C 32
Vol. resistivity, cm 1.2x1016
Permittivity 2.3
Loss tangent <0.0001
Surface breakdown
at flash over, kV
24
Electric strength, V 730

*Too close to room temperature to measure

Apiezon Grease; Type L

Grease L is a petroleum hydrocarbon grease, containing no additives. Very low vapor pressure (@20°C of 8x10-11 torr), high vacuum grade. Type L is widely used in the stationary phase of gas liquid chromatography, and may be used on all ground joints in a vacuum system (not for stopcocks). Its solubility is as follows: in Ethanol at 20°C-0.003%; 60°C-0.005%; 100°C-0.011%; 150°C-0.011%. Grease L softens and melts at about 47°C and it is not recommended for joints where temperatures exceed more than 30°C in use. Grease T is recommended for these higher temperatures.

Manufacturer: Apiezon
Products specifications
Attribute name Attribute value
Hazard Hazard - Requires an additional shipping cost.
Cat # Description MSDS Pack Price Quote Quantity
Cat #: 60702 Description: APIEZON GREASE, TYPE L Pack: 25 g Price: $128.00 Add to Quote:
Cat #: 60702-01 Description: Apiezon Grease Type L, 50G Pack: 50 g Price: $176.00 Add to Quote: