Perfluoropolyether Oil RUI M2506 equivalent to Fomblin Y LVAC25/6 PFPE Oil

u Low vapor pressure

u Low toxicity

u Chemical inertness

u High dielectric properties

u High thermal stability

u Low surface tension

u Good lubricant properties

u Good radiation stability

u No flash or fire point

u Environmentally acceptable

u Good aqueous and non-aqueous solvent resistance

u Excellent compatibility with metal, plastics and elastomers

Typical Property

 Unit

RUI(PFPE) M

606

1406

1606

2506

Average molecular weight

a.m.u.

1800

2500

2700

3300

Specific gravity(@20℃)

g/cm³

1.88

1.89

1.89

1.90

Kinematic Viscosity

cSt

64

148

168

276

Vapor pressure

@25℃

torr

8×10^-7

1×10^-7

2×10^-6

6×10^-8

@100℃

torr

3×10^-3

2×10^-4

2×10^-4

6×10^-5

Pour Point

℃

-50

-45

-45

-35

Heat of vaporization(@200℃)

cal/g

11

8

8

7

Surface tension

dyne/cm

21

22

22

22

Evaporation loss, (22hrs)

%by wt.

2.8(120℃)

2.6(149℃)

3.9(149℃)

0.6(149℃)

Ultimate total pressure

torr

1.7×10^-3

1.4×10^-3

2.4×10^-3

1.2×10^-3

Specific oil consumption

cm³/hr

0.4

0.6

0.5

0.7

Typical

RUI(PFPE) M

RUI(PFPE) H

606

1406

1606

2506

1808

2509

40011

140013

Rotary pumps-sealing

& lubricant fluid

√

√

√

Turbomolecular    pumps-lubrication

√

Roots pumps-lubrication

√

√

Diffusion pumps-working fluid

√

√

√

√