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EV-Silicon Oil-730

For diffusion pumps
 EV-Silicon Oil-730 (Phenyl-Methyl Silicone) is an excellent compromise oil having a mid-range boiling point approaching 704. Extensively used in heat treatment and investment casting applications where a high auto-ignition oil temperature is desirable. EV-Silicon Oil-730 provides exceptionally high resistance to oxidation and thermal stability when compared with mineral diffusion pump oils.

EV-Silicon Oil-730 is a bespoke diffusion pump oil that may be used as a direct replacement for the discontinued Wacker AN30.
EV-Silicon Oil-730 is an intermediate upgrade between EV-Silicon Oil-702 and EV-Silicon Oil-740 for those who want extra performance and faster pumping speeds than traditional 702.


EV-Silicon Oil-730 is available in:

1 kilo – article number: 100620
5 kilo – article number: 100622
20 kilo – article number: 100623

For larger quantities please consult Eurovacuum BV or one of our dealers.

Technical data

Saturated Vapour Pressure @ 25ºC: 5.0 X 10-7 torr
Average Boiling Range @ 5.0 X 10-1 torr: 20ºC
Mid Range Boiling @ 5.0 X 10-1 torr: 185ºC
Initial Boiling Point @ 5.0 X 10-1 torr 155ºC: <0.1gr: = 0.025% Wt.
Molecular Weight (typical): 470g/mol
Flash Point: >230ºC
Viscosity @ 40ºC Nominal: 28.5 cst
Viscosity @ 25ºC Nominal: 54 cst
Specific Gravity @ 25ºC (Typical): 1.07
Colour: Water white
Oil Type: Phenyl-methyl

Safety Data Sheet

Not yet available