Apiezon L ultra high vacuum grease (previously M009) (EMS)

A well-proven and recommended high-vacuum grease for electron beam instruments. Grease L is a petroleum hydrocarbon grease, containing no additives. Very low vapour pressure (@20°C of 8x10-?? torr), high vacuum grade. Type L is widely used in electron microscopy where moderately high column temperatures and high vacuum requirements demand a vacuum grease with extraordinary characteristics. Type L is also 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.Typical PropertyAP101AP100HLMNT...

A well-proven and recommended high-vacuum grease for electron beam instruments. Grease L is a petroleum hydrocarbon grease, containing no additives. Very low vapour pressure (@20°C of 8x10-?? torr), high vacuum grade. Type L is widely used in electron microscopy where moderately high column temperatures and high vacuum requirements demand a vacuum grease with extraordinary characteristics. Type L is also 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.

Typical Property AP101 AP100 H L M N T
Main area of
application
General Lubricating Cryogenic High Temp High Vacuum General Vacuum Medium Temp
Melting Point:
ASTM.D 566
°C
°F
>200
>392
42-52
108-126
does not melt 42-52
108-126
40-60
104-140
42-52
108-126
112-137
233-278
Working temp. range °C
°F
-40-180
-40-365
10-30
50-86
-10-240
14-464
10-30
50-86
10-30
50-86
-269-30
-452-86
10-120
50-248
Vapor Pressure
Torr @20°C
<1.0x10-5 7.0x10-11 1.7x10-9 7x10-11 1.7x10-9 6x10-10 4.6x10-9
Relative Density 20°C 0.981 1.042 0.918 0.896 0.894 0.911 0.912
Radiation Resistance No No No Yes Yes No No
Outgassing
Characteristics
ASTMS .E
595-90
TML
CVCM
-
-
<1.0%
<0.1%
<1.0%
<0.1%
<1.0%
<0.1%
-
-
<1.0%
<0.1%
-
-
Lubricity 4 Ball Test
ASTM .D 2763
(IP 239), Kg
450 450 250 150 140 150 -
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
0.00066 - - 0.00076 0.00075 0.00072 0.00073
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 - - 25 32 34 31 *
Vol. resistivity, cm - - - 1.2x1016 2.6x1016 2.0x1016 3.3x1012
Permittivity - - - 2.3 2.1 2.3 2.3
Loss tangent - - - <0.0001 <0.0001 <0.0001 <0.0001
Surface breakdown
at flash over, kV
- - - 24 28 27 24
Electric strength, V - - - 730 850 820 730


Code Title Pack Size Availability Price Updated: 19-05-2024
M1-L-00025-X Apiezon L ultra high vacuum grease (previously M009) (EMS) 25g See above $336.00 AUD