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AVAILABLE AT |
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Apiezon® waxes are designed for sealing joints of a permanent nature. Three grades of wax are available, all similar, but with differing degrees of hardness and softening points. Wax W is used in most applications, but a softer wax is used where it would simplify application or where there may be vibration problems. |
Specification chart |

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For your free copy of the NASA research paper on Apiezon® N or more product information contact info@inlandvacuum.com. |

Specification chart |
APIEZON® Wax |
APIEZON® sealing compound q |
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Apiezon® Sealing Compound is a putty-like substance used to seal joints and fill holes and gaps on the rotary side of a high vacuum system. It is suitable for sealing the edges of flat, underground joint in test equipment where parts of the system must be blanked off temporarily. A further example is the sealing of glass jars to metal plates to produce temporary vacuum enclosures. |




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Vacuum Performance Oils and Greases |
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Inland Vacuum Industries, Inc. |

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All stopcocks and moveable joints in a vacuum system must be satisfactorily lubricated while remaining leak proof. The ideal lubricant for this purpose would have a low vapor pressure and be stable, chemically inert, non-toxic, and easily applied/removed. Apiezon® greases have these qualities. A wide range of greases are available for various applications. |
APIEZON® GREASES |
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The Superior quality of Apiezon® AP201 gives longer oil service life and reduces the frequency of oil changes and cleaning time—therefore cutting equipment down time and service costs. Furthermore, its technical properties ensure that fewer top ups are required and less total oil used. These factors make Apiezon® AP201 the only cost effective choice of fluid for vapor booster pumps. |
APIEZON® AP201 Vapor booster pump fluid |
Typical properties |
The advantages of apiezon ap201 |
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Highly resistant to oxidation- Reduced carbonaceous and tarry deposits Easier and faster servicing and cleaning Reduced drainage time from reservoir Longer service life of oil |
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Minimal volatile components- Better ultimate vacuum achieved faster Reduced top ups Reduced backstreaming |
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Apiezon® is a registered trademark of M&I Materials Ltd..
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Product |
Vapor Pressure @ 20ºC (Torr) |
Melting Pt. (ºC) |
Average Molecular Weight |
Specific Gravity @ 20ºC |
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Apiezon® Grease H |
2x10-9 |
Does not melt |
1000 |
0.918 |
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Apiezon® Grease L |
7x10-11 |
47ºC |
1300 |
0.896 |
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Apiezon® Grease M |
2x10-9 |
44ºC |
950 |
0.894 |
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Apiezon® Grease N |
8x10-10 |
43ºC |
1300 |
0.911 |
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Apiezon® Grease T |
4.6x10-9 |
125ºC |
n/a |
0.912 |
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Specifications |
WAX W |
WAX W100 |
WAX W40 |
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Approximate Softening Pt. ºC |
85 |
55 |
45 |
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Temperature for Application ºC |
140 |
110 |
95 |
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Maximum Temperature for Use ºC |
80 |
50 |
40 |
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Specific Gravity @ 20ºC/15.5º |
1.055 |
1.025 |
1.017 |
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Specific Gravity @ 30ºC/15.5º |
1.048 |
1.018 |
1.010 |
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Average Molecular Weight |
1214 |
1160 |
1140 |
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Coefficient of Expansion per ºC over 20-30ºC |
0.00062 |
———- |
0.00063 |
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Thermal Conductivity Btu/in/fte2/ºF |
1.31 |
1.81 |
1.23 |
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Thermal Conductivity w/m/ºC |
0.189 |
0.170 |
0.177 |
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Specific Heat 25ºC, cal/g |
0.43 |
0.70 |
0.51 |
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Specific Heat 25ºC, Joule/g |
1.8 |
2.9 |
2.1 |
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Loss Tangent |
0.015 |
0.016 |
0.015 |
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Permittivity |
2.8 |
2.7 |
2.9 |
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Volume Resistively, ohm/cms |
6.31x1015 |
1.64x1015 |
5.05x1015 |
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Specifications |
COMPOUND Q |
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Approximate Softening Pt. ºC |
45 |
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Temperature for Application ºC |
Ambient |
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Maximum Temperature for Use, ºC |
30 |
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Vapor pressure @ 20ºC, torr |
4x10-6 |
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Specific gravity @ 20ºC |
0.885 |
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Viscosity, cSt @ 20ºC |
76 |
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@ 40ºC |
22 |
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Flash point, ºC |
196 |
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Fire point, ºC |
>200 |
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Pour point, ºC |
-30 |
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Boiling point, ºC @ 1 torr |
165 |
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Autoignition point, ºC |
>320 |