VNIINP-282 grease (TU 38.1011261-89) is a perfluoropolyether thickened with an inorganic thickener. The main performance characteristics of the grease: inert towards strong oxidants, compatible with polymers and rubbers, water resistant, good extreme pressure properties, not prone to heat hardening; outperforms most chemically resistant greases in oxygen resistance. VNIINP-282 grease has the sealing properties. It is efficient within the temperature range from -45 to + 150°С. VNIINP-282 grease is a soft white or light gray ointment with a smooth structure. Unlike SK-2-06 grease, it is thickened with silica gel. It is used in friction units operating in contact with gaseous oxygen at pressures up to 25 MPa, in threaded joints at oxygen pressures inside the pipeline up to 100 MPa.
VNIINP-282 grease is widely used in oxygen breathing apparatus. It is recommended for movable rubber seals, due to the inertness of the grease towards rubber of various chemical composition. The grease has good viscosity-temperature properties, thermal stability, low volatility allows the grease to be used at temperatures from -45 to + 150°C. it keeps operating in threaded and other fixed connections, in particular in contact with oxygen, up to -60°C.
Physical and chemical indicators of VNIINP-282 grease (TC 38.1011261-89)
|Name of the indicator||Norm GOST (TC)|
|Appearance||Homogeneous ointment with smooth structure of white to light gray color|
|Effective viscosity, Pa-s|
|at 50°C and mean gradient of strain rate 1000 s-1, not less than||1,6|
|at -30 °C and mean gradient of strain rate 10 s-1, not more than||1200|
|Tensile strength at 50 °C, Pa||200 - 700|
|Colloidal stability of allocated oil, %, not more than||5|
|Corrosive influence on metals||Withstands|
|Content of mechanical impurities with a diameter from 0,075 mm||Absence|
|Evaporability at 150°C, %, not more||5|
|Penetration at 25°C, mm||Not normalized|