Grease benzinoupornaya (GOST 7171-78) is a jointing paste (sealing compound); oxidized castor oil thickened with zinc soap of the castor oil acids. The application requirements: Practically insoluble in organic solvents and water.
Operating efficiency at temperatures ranging from –10 °C to +40 °C.
Applications: sealing of plug type valves and threaded connections of fuel and oil systems.
Appearance and color: Homogeneous ointment from light brown to dark brown color.
Effective viscosity, Pa•s, at -30 °C, not more than: —
Breaking strength at 20 °С, Pa•s, not less than: —
Dropping point, °С, not below than: 55
Colloid stability, % of extracted oil, not more than: —
Mass fraction of abrasive mechanical impurities, %, not more than: n/a
Penetration at 25 °C, mm, 10-1: 30-80
The solubility of the grease in a mixture of gasoline and benzene, % , not more than: 20
Water content, mass %, not more than: 2
