Apiezon L ultra high vacuum grease (previously M009) (EMS)
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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: 29-04-2024
M1-L-00025-X Apiezon L ultra high vacuum grease (previously M009) (EMS) 25g See above $336.00 AUD