your best partner for vacuum

EV-Silicon Oil-702

For diffusion pumps
EV-Silicon Oil-702 provides a drop in replacement for popular products such as DC 702, where ultimate vacuum and pumping speeds are of prime importance, it is an enhanced version that can obtain higher than normal pumping speeds.
Extensively used in heat treatment and investment casting applications where high auto-ignition temperatures are desirable. EV-Silicon Oil-702 provides exceptionally high resistance to oxidation and thermal stability when compared with mineral diffusion pump oils


EV-Silicon Oil-702 is available in:

1 kilo – article number: 100600
5 kilo – article number: 100602
20 kilo – article number: 100603

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

Technical data

Saturated Vapour Pressure @ 25ºC: 2.5 X 10-6 torr
Average Boiling Range @ 5.0 X 10-1 torr: 30ºC
Mid Range Boiling @ 5.0 X 10-1 torr: 182ºC
Initial Boiling Point @ 5.0 X 10-1 torr = 155ºC<0.1gr: = 0.025% Wt.
Molecular Weight (typical): 450g/mol
Flash Point: >230ºC
Viscosity @ 40ºC Nominal: 17cst
Viscosity @ 25ºC Nominal: 32cst
Specific Gravity @ 25ºC (Typical): 1.07
Colour: Water white
Oil Type: Phenyl-methyl