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Apiezon K Lubricating Oils

Apiezon K oils are high viscosity sealing oils which can be used in a variety of applications. These very high viscosities mean the oils are well suited for rotary glands in particular, a type of seal where the turning shaft protrudes through the inner diameter of the O-ring. Apiezon K is highly compatible where high viscosity and low vapor pressure occurs.

Overview / Uses
Technical

Apiezon K is compatible with a wide range of O-ring materials including:

Viton
Silicone
Nitrile (>30% nitrile content)
Nylon
Polyurethane
Polyethylene
Polypropylene

Due to their hydrocarbon base, Apiezon K is not compatible with:

EPDM (ethylene propylene diene M-class rubber)
EPR (ethylene propylene rubber)
Butyl rubber
PVC seals

Uses for Apiezon K Lubricating Oils

These oils are designed for use wherever a high viscosity oil is needed for sealing purposes. With low vapour pressures, these products can be used with confidence under vacuum environments and can provide an effective vacuum seal.

The main difference between the two products (Apiezon J and K) is in the higher viscosity of K oil compared to J oil; if a thicker oil is needed then K oil is the preferred choice.

These oils could also be used to seal fragile glassware in vibrational applications; however, they are liquid and should only be used in applications where the oil would have nowhere to flow to.

Specifications Table

Vapor Pressure	@20°C / 68°F, Torr: 1 x 10^-9
Pour Point	ASTM D97: -1°C / 30°F
Flash Point	Cleveland Open Cup: > 350°C / > 662°F
Fire Point	Cleveland Open Cup: > 370°C / > 698°F
Viscosity	Dynamic, cSt @ 40°C / 104°F: 5160
Specific Heat (Cal/g•°C)	@ 25°C / 77°F: 0.46 cal/g (1.9 J/g)
Kinematic Viscosity	cSt @ 40°C/104°F: 5710 @ 100°C/212°F: 177
Thermal Conductivity	0.169 W/m°C
Relative Density	@ 20°C / 68°F: 0.94

Looking for lower viscosity? Try Apiezon J

Easily removed

To remove the oil after use, scrape away larger amounts. Heat can be used to decrease the viscosity and make removal easier. Any deposits can then be dissolved away by using any aromatic hydrocarbon solvent (toluene, xylene), or removed using a vapour degreasing bath. Apiezon sealing oils are not soluble in alcohols (ethanol, IPA) or ketones (acetone, MEK) so these cannot be used for cleaning.

Shelf life

The shelf life of Apiezon K oil is ten years from date of manufacture, providing the product is in the original unopened packaging and has been stored at ambient (10 to 30°C) temperature.

Ordering Table

All dimensions listed below, unless otherwise stated, are in grams.

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	Description	Grade	Size	Safety Data Sheet	Part Number	Price	In Stock	Add To Cart
	Description	Grade	Size	Safety Data Sheet	Part Number	Price	In Stock	Add To Cart
	APIEZON K 500CC BTL VAC LUBE OIL	Apiezon K	500 cc		APKBB	$902.00