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Apiezon Greases high vacuumarrow13Vacuum Greases and Diffusion Pump Oils

arrow12Apiezon Greases:

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 AP101 AP100 H L M N T
Main area of
General Lubricating Cryogenic High Temp High Vacuum General Vacuum Medium Temp
Melting Point:
ASTM.D 566
does not melt 42-52
Working temp. range °C
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
Lubricity 4 Ball Test
ASTM .D 2763
(IP 239), Kg
450 450 250 150 140 150 -
Viscosity of molten
grease, cP
Coefficient of
expansion per °C
over 20°C-30°C
0.00066 - - 0.00076 0.00075 0.00072 0.00073
Thermal conductivity,
Latent heat of fusion,
- - - 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

*Too close to room temperature to measure

msdsarrow12Apiezon 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.

60702 Apiezon Grease L 25g tube 128.00 Add to Cart
60702-01 Apiezon Grease L 50g tube 176.00 Add to Cart
msdsarrow12Apiezon Grease; Type M

Similar to grease type L, but it contains more wax. Grease M has an estimated vapor pressure @ 20°C of 2x10-9 torr, higher than Type L. Type M is recommended for applications where a grease of moderately low vapor pressure is required; such as for sealing ground joints on the backing side of oil diffusion pumps.

60700 Apiezon Grease M 25g tube 80.00 Add to Cart
60700-01 Apiezon Grease M 100g tube 152.00 Add to Cart
msdsarrow12Apiezon Grease, Type N

Similar to Type L and Type M, but Type N grease has a special additive which gives it a tenacious, rubbery consistency and provides an extra cushioning effect which absorbs vibrations in equipment, making N grease invaluable in fragile glass to glass joints, like burette taps, which continually risk fracture. Grease N is widely recognized and recommended as the cryogenic vacuum grease of choice.

60701 Apiezon Grease N 25g tube 196.00 Add to Cart
msdsAP100 Greasearrow12Apiezon Grease, Type H

Type H grease is designed for high temperatures (-10 to +240°C) in a wide range of applications in both science and industry. With good "friction", grease H is ideal for use with laboratory glassware, but combined with properties of high thermal conductivity, it is the perfect choice for the electronics and space industries where heat sink media require adhesion.
Grease H is a filled hydrocarbon which exhibits excellent thermal conductivity, and strong absorption properties. The capability to absorb greasy or chemical impurities on metal and glass surfaces is a value "tool" required by electronic industries.

60703 Apiezon Grease H 25g tube 168.00 Add to Cart
msdsarrow12Apiezon Grease; Type T

Type T is designed for lubricating glass taps and for general purposes. Has a melting point of 125°C and has an estimated vapor pressure @ 20°C of 5x10-9 torr. Although type T is useful at higher temperatures, it can also be used at ambient temperatures.
Temperature range: 0-120°C.

60704 Apiezon Grease T 25g tube 168.00 Add to Cart
msdsAP100 Greasearrow12Apiezon Grease, Type AP100

Apiezon AP100 Grease is a silicone-free vacuum grease and lubricant. Containing PTFE, AP100 exhibits extremely high levels of lubricity and has been shown to provide eight times the level of lubrication offered by standard, petroleum-based lubricating greases.

Apiezon AP100 is designed for use at ambient temperatures (generally between 10 to 30°C / 50 to 86°F). If you are looking for a grease capable of performing at higher temperatures, Apiezon AP101 or Apiezon H Grease may be more appropriate.


  • Has anti-seize properties, making it an effective protector and lubricant in ultra-high vacuums
  • Exhibits extremely high levels of lubricity
  • Demonstrates an extremely low vapor pressure of 7 x 10-11 Torr at 20°C
  • Recommended for use at ambient temperatures
  • Does not suffer from contamination problems associated with silicone based greases such as "creep" or "carry over"
  • Easy to clean and remove using hot water and an aqueous glassware detergent, hydrocarbon or chlorinated solvents


The unique properties of Apiezon AP100 lubricating vacuum grease mean it is frequently used to protect stepping motors and gearboxes from corrosion and abrasion, particularly when they are subjected to high load conditions. AP100 is also used to prevent seizure in stopcocks, taps and small metal fastenings.

The creep resistance of Apiezon AP100 benefits scientific and semiconductor users alike. AP100 helps to increase the accuracy of analytical techniques and improve yields in semiconductor manufacture by contamination avoidance. In addition, AP100 is used for surface coating applications where silicone contamination can lead to poor surface adhesion and incomplete coating defects.

60709 Apiezon Grease AP 100 50 g 185.00 Add to Cart
msdsarrow12Apiezon Grease, Type AP101

Type 101 is an excellent general purpose, hydrocarbon grease, which is intended for a variety of industrial and scientific applications.

  • Anti-Seize Properties: The AP 101 contains "PTFE" which confers superior anti-seize properties providing long lasting lubrication and ensuring smooth operation of stop cocks and taps. The value of AP 101 anti-seize properties are not limited to laboratory or glassware use, but are equally effective when used on metal equipment which may be subject to seizure or corrosion
  • Non silicone Grease: Being hydrocarbon based AP 101 does not suffer from the problems of "creep" or "carry over" which is traditionally associated with silicone greases. It reduces sample contamination and the risk of interference in analytical techniques such as infra-red and mass spectrometry
  • Solvent resistant: Both "PTFE" and the lithium stearate gel base in AP 101 are insoluble in most solvents. They ensure that AP 101 shows resistance to water, alcohols, ketones and esters. In addition AP 101 resists attack from aqueous acid and alkali solutions, alcoholic alkali solutions and corrosive gases
  • Wide temperature range: It can be used over a very wide range of temperatures, possessing its optimum consistency over the -15 to +150°C temperature range, but is usable down to -40°C and, for limited periods, up to +180°C
  • Under vacuum: AP 101 exhibits good vacuum properties, down to 10-4 torr
  • Easily remove AP 101 by wiping it with a soft cloth. Any residues of grease can be washed away with an aqueous glassware detergent
60706-01 Apiezon Grease AP 101 50g 85.00 Add to Cart
60706-40 Apiezon Grease AP 101 4 kg 2,528.00 Add to Cart
msdsPFPE 501 Greasearrow12Apiezon Grease, Type PFPE 501 Grease

PFPE 501 is a chemically inert, high temperature and extreme pressure lubricant. With an upper operating temperature of 250°C and vapor pressure of 1.3 x 10-12 at 25°C, it is robust, versatile and can be used for sealing and lubricating under the most extreme operating conditions. This includes environments where aggressive chemicals and strong oxidising agents are regularly used.

Why Use Apiezon PFPE 501 Grease?

  • PFPE based
  • High temperature lubricant
  • Used in oxygen rich environments
  • Ultra high vacuum
  • Chemically inert
  • Extreme Pressure
  • Wide temperature range

Benefits of Apiezon PFPE 501 Grease

  • Extended equipment life
  • High temperature lubricant
  • Reduced equipment downtime
  • Lower service costs
  • Life-time lubrication
  • Guaranteed Apiezon quality
  • Expert technical support
60708 Apiezon PFPE 501 Grease 100g 225.00 Add to Cart

Apiezon WaxQ Compoundarrow12Apiezon Vacuum Sealing, Mounting, and Etching Waxes and Q Compound

Apiezon Vacuum Sealing, Mounting, and Etching Waxes

The Apiezon range of waxes features three products including the popular Apiezon Wax W, also known as 'Black Wax'. All three waxes in the Apiezon range can be used as permanent or semi-permanent vacuum sealants or mounting media. Apiezon Wax W is also a perfect etch resist.

Why use Apiezon Waxes?

  • Versatile products suitable for a multitude of uses
  • Etch resist (Wax W only)
  • First-rate vapor pressure characteristics
  • High purity combined with powerful gettering & clean meltdown properties
  • Excellent waterproof media
  • Easy to use and to remove
  • 10 year shelf life


  • Apiezon Wax W: Hard Vacuum Sealing / Mounting Wax, Etch Resist
  • Apiezon Wax W100: Medium Hardness Vacuum Sealant / Mounting Wax
  • Apiezon Wax W40: Soft Vacuum Sealant / Mounting Wax
  • Apiezon Q Compound: Vacuum Sealing Compound
Apiezon Q Compound

Apiezon Q Compound is an effective temporary vacuum sealant that is used as a short term solution in situations which do not allow for the immediate dismantling of a system for repair.

Why use Apiezon Q Compound?

  • Temporary vacuum sealant
  • Versatile product suitable for a multitude of uses
  • Excellent waterproof medium
  • Easy to use and to remove
  • 10 year shelf life

Waxes and Q Compound Properties

Typical Property Wax W Wax W100 Wax W40 Q Compound
Approximate Softening Point °C
Estimated Vapor
Pressure @ 20°C / 68°F, torr
4.5 x 10-9 4.5 x 10-9 6 x 10-8 1 x 10-4
Temperature for Application °C
Working Temperature Range °C
Water Permeability
g/cm/hr/mm Hg @ 25°C
0.8 x 10-8 1.6 x 10-8 1.6 x 10-8 N/A
Pack N/A

250 g tin


250 g tin


1 Kg

Thermal/Electrical Properties
Thermal Conductivity @ 20°C,
w/m °C
0.189 0.170 0.177 N/A
Specific Heat @ 25°C, J/g 1.8 2.7 2.9 N/A
Loss Tangent 0.015 0.016 0.015 N/A
Permittivity 2.8 2.7 2.9 N/A
Volume Resistivity, Ω cm 6.31 x 10-15 1.64 x 10-15 5.06 x 10-15 N/A
60710 Apiezon Wax W msds 500g 160.00 Add to Cart
60711 Apiezon Wax W100   250g 160.00 Add to Cart
60712 Apiezon Wax W40   250g 160.00 Add to Cart
60713 Apiezon Q Compound msds 1kg 162.00 Add to Cart

msdsDow Corning® Vacuum Greasearrow12Dow Corning® Vacuum Grease

A silicone lubricant for glass-to-glass joints and glass-to-rubber connections. Resistant to most chemicals and is inert and heat stable.

60705 Dow Corning Vacuum Grease 150g tube 38.00 Add to Cart

Fomblin Vacuum GreasearrowFomblin® Vacuum Grease, AR555 Grade

Fomblin AR555 is a homogenous white grease with excellent rust inhibiting and solvent washout resistance properties. It is suitable for lubricating mechanical parts requiring boundary (extreme pressure) lubricating properties, and suitable for use in several operating conditions, high load, high speed, and where a wide temperature range is requred.

The operating temperature range is from -20°C to 250°C. Its properties make it suitable in "lubricating for life" applications. This vacuum grease is an excellent lubricant for sliding elastomer seals, and exhibits the chemical inertness typical of the Fomblin range.

It has a very low vapor pressure, <10-7 mbar at 20°C, and is suitable for use in the presence of gaseous and liquid oxygen under severe condition.

  • Very wide temperature range -20°C to 250°C
  • Excellent rust inhibiting properties
  • Excellent wear resistance properties
  • Excellent resistance to aggresive chemicals

Typical Properties

Thickener PTFE
Penetration worked after 60 strokes (ASTM D 217) mm/10 290
NLGI Class 2
Viscosity of base fluid at 20°C 1500
Viscosity of base fluid at 40°C 420
Viscosity of base fluid at 100°C 40
Viscosity Index (ASTM D 2270) cSt 135
Anti-Rust Additivation Yes
Evaporation (ASTM D 2595) Weight loss at 204°C/22h/120 l/h 1.2%
Range of continuous use temperature -20°C to 250°C
Oil separation FTMS 791 -321 Weight loss at 204°C/30 hrs 7.2%
Speedy Factor dm.n 250,000
60716 Fomblin® Vacuum Grease, 100g Syringe each 230.00 Add to Cart

TorrLubemsdsarrowTorrLube® ExtremeGrease

TorrLube ExtremeGrease is an advanced high vacuum grease that is chemically inert, nontoxic, nonflammable, and very smooth for an NLGI #2 grease. Translucent white in color and buttery to the touch, TorrLube ExtremeGrease uses our popular TLC 10 high vacuum, high temperature oil combined with an advanced lubricating, high heat, PTFE to create a vacuum grease with ultra-low outgassing, extreme temperature use, and excellent lubricating capabilities.

TorrLube ExtremeGrease has exceptional anti-wear properties and good shear stability that will help extend the life cycle of rolling element bearings. TorrLube ExtremeGrease shows superior chemical resistance to the aggressive chemicals used in Semiconductor applications, while also being non-toxic and displaying low acute toxicity.


TorrLube ExtremeGrease was developed for applications that require a high temperature, low outgassing, lubricating grease that doesn’t react with fuels, oxidizers, elastomers, most metals, or the harsh chemicals used in Semiconductor applications. TorrLube Extreme Grease is an excellent choice for lubricating fine mechanical devices, conditioning O-rings, and rolling element bearings.

Note: Although TorrLube ExtremeGrease is intrinsically inert, testing of material compatibility is always recommended, especially in severe operating conditions.

Made in the USA

60750-20 TorrLube ExtremeGrease 30cc Syringe each 215.00 Add to Cart

TorrLubeTorrLubearrowTorrLube® TLC 10 Perfluoropolyether Oil

The most advanced fluorine synthesizing technology was used to modify the molecular chain of these PFPE oils to make them stronger as well as more effective under high temperatures and pressures.

TLC oils were developed specifically for critical applications that require high temperature serviceability in deep vacuum. They are safe in oxygen systems, are non-flammable, and are highly resistant to aggressive chemicals. Their intrinsic inert nature makes them non-reactive, and therefore, compatible with most materials used in Semiconductor and Aerospace applications.


  • Can handle very high temperatures
  • Very low vapor pressure
  • An excellent lubricant under both atmosphere and vacuum
  • Nonflammable
  • Non-Reactive
  • Chemical Resistance
  • Do not react with oxygen
  • Very low outgassing
  • O-Ring Conditioning
  • Infinite shelf life
  • Made in the USA
60750-01 TorrLube Oil TLC 10, 1cc Syringe each 116.00 Add to Cart
60752-01 TorrLube Oil TLC 10, 60cc Bottle each 765.00 Add to Cart
60752-20 TorrLube Oil TLC 10, 2 x 60cc Bottles 2/pk 1,450.00 Add to Cart

Diffusion Pump Oils

arrow12Invoil Oils (formerly known as Apiezon Oils)

Consists of esters or specially selected hydrocarbon fractions. They were developed for vapor-diffusion pump fluids:

  • High purity, very low pressure, very stable
  • Pressures lower than 10-7 torr obtainable
  • No need for cold trap
  • Good pumping speed
  • No corrosive deposits or vapors

Physical Properties of Apiezon Oils

  Diffusion Pump Oils
  Type B Type BW Type C
Vapor Pressure,vtorr @20°C 10-6 10-6 10-7
Boiling Point,°C @ 1 torr 220 225 225
Flash Point (open cup)°F 470 480 510
Pour Point(ASTM) °F 15 10 5
Density, g/ml @ 20°C 0.872 0.882 0.875
spacer.gif (48 bytes)@ 40°C 0.859 0.869 0.863
Viscosity, kinematic,cS @ 20°C 142 361 283
spacer.gif (48 bytes)@ 50°C 49.3 98.1 90
spacer.gif (48 bytes)@ 100°C 7.0 10.1 10.6
Coefficient of Expansion per °C over 20-30°C (ASTM) 0.00073 0.00070 0.00069
Thermal Conductivity Btu/in 0.91 0.89 0.96
msdsarrow12Invoil Oil B

Good for small or large vapor diffusion pumps. Good pumping speed and high backing pressure. If a cold trap is used, oil B can obtain a higher vacuum than oil C does.

60720 Invoil Oil B 500 ml 202.00 Add to Cart
arrow12Invoil Oil BW

A water-white oil with a higher pumping speed than oil B, although all other characteristics are similiar to B. Because it has an extremely high purity it is suitable for use in the evacuation of mass spectrometers.

60722 Invoil Oil BW 500 ml 265.00 Add to Cart
msdsarrow12Invoil Oil C

Obtains the highest vacuum pressure (10-7 torr) of all of the oils without the need of a cold trap.

60724 Invoil Oil C 500 ml 265.00 Add to Cart

msdsarrow12Santovac® 5

A Polymethyl Ether, designed for an ultra high vacuum range: 10-10 torr.

Ultra low vapor pressure results in low ultimate pressures; there is no need for a cold trap and it is suitable for diffusion pumps. Santovac 5 may discolor with use but it will maintain its physical properties.

Typical physical properties of Santovac® 5:

Vapor Pressure @ 25°C 4 x 10-10 torr A Polymethyl Ether, designed for an ultra high vacuum range
Boiling Point @ 0.5 torr 275°C
Density @ 25°C 1.198
Viscosity: cS @ 27°C 1000
spacer.gif (48 bytes)@ 38°C 363
spacer.gif (48 bytes)@ 99°C 13.1
spacer.gif (48 bytes)@ 149°C 4.5
spacer.gif (48 bytes)@ 260°C 1.2
Flash Point, open cup 288°C
Pour point 5°C
Autogeneous Ignition Temp. 590°C
Refractive Index, nD25 1.6306
60730 Santovac 5 100 ml 310.00 Add to Cart
60732 Santovac 5 500 ml 1,200.00 Add to Cart

arrow12For all other Oils and Greases

Please see Vacuum Pumps, Accessories, & Evaporation Supplies

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