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Silicon-free. Apiezon T grease is a filled hydrocarbon grease for general sealing and lubrication in the medium temperature range. It is not suited for highly stressed bearings but excels in sticking power, is suitable for high to low vacua and is not silicone based.
It is suitable for use between 10 and 120C and retains its best characteristics between 25 and 50C. It features a tenacious consistency and thus extra cushioning between mated surfaces. It is superb for delicate glass joints for example.
In its lower temperature range it is suited for high vacuum applications, down to 10-9 torr, at 100C it is still suitable down to 10-5 torr.
Apiezon T, like other greases in that family has a strong «gettering» action. It will absorb greasy or chemical contaminants from metal surfaces. The product has no contaminating effect on electrical equipment and is easily removed by hydrocarbon solvents.
Apiezon T has found a niche as a reliable barrier to oxygen transmission in both vacuum and non-vacuum applications.
Apiezon products:
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 <,1.0×10-5 7.0×10-11 1.7×10-9 7×10-11 1.7×10-9 6×10-10 4.6×10-9 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 — — — 1.2×1016 2.6×1016 2.0×1016 3.3×1012 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
Технические характеристики
Main area of
application
