Products

Radiation Resistant Lubricating Oil and Greases

Exhibits stable lubrication performance over a long period in nuclear power related facilities

A higher level of reliability than normal is required for the apparatus operating in nuclear power related facilities. MORESCO-HIRAD exhibits stable and superior lubrication performance. These products guarantee great possibilities for future technology.

Polyphenyl ether type

This type is suitable for use as the vacuum oil and gear oil in a particle accelerator, which is subjected to large amounts of radiation, and as the bearing oil in facilities such as 60Co gamma-ray radiation facilities and remote control equipment.

MORESCO-HIRAD
Product No. Dynamic viscosity
mm2/s
(40℃)
Density
g/cm3
(15℃)
Flash point Appearance Product guide
(PDF)
RP-42 125 1.17 260 Colorless transparent
RP-42R 240 1.02 310 Colorless transparent
RP-42S 42 1.04 250 Colorless transparent

Alkyl diphenyl ether type

This type is suitable for use as the operation oil and turbine oil on seismic isolation devices and nuclear power related apparatus.

MORESCO-HIRAD
Product No. Dynamic viscosity
mm2/s
(40℃)
Density
g/cm3
(15℃)
Flash point Appearance Product guide
(PDF)
RA-15 15.8 0.945 214 Light yellow transparent
RA-32 32.3 0.922 226 Light yellow transparent
RA-100 102 0.895 286 Light yellow transparent
RA-150 154 0.896 280 Light yellow transparent
RA-320 325 0.896 280 Light yellow transparent

Radiation resistant grease

This is suitable for use as the lubricant in nuclear power related equipment such as on the seismic isolation devices for fast-breeder reactors and light-water reactors, in 60Co gamma-ray irradiation facilities, remote control equipment, electron accelerators, and reprocessing plants.

MORESCO-HIGREASE
Product No. Consistency
(25℃)
Consistency
number
Dropping point Oil separation
30H
(100℃)
Appearance Merits and
applications
Product guide
(PDF)
GK-1 325 No. 1 consistency 250 or higher 1.0% Dark gray color Excellent heat resistance, lubricating performance and radiation resistance. An extremely small amount of thermal decomposition gas under high temperature and high vacuum conditions. For textile machinery bearings, papermaking machinery bearings, and for nuclear power and semiconductor manufacturing equipment.
MORESCO-HIRAD
Product No. Consistency
(25℃)
Consistency
number
Dropping point Oil separation
30H
(100℃)
Product guide
(PDF)
RG-42-1 325 No. 1 consistency 300 or higher 4.0% or less
RG-42R-1 325 No. 1 consistency 300 or higher 4.0% or less
RG-42S-1 325 No. 1 consistency 300 or higher 4.0% or less