Grease VNIINP-263 (GOST 16862-71) is petroleum oil, thickened with modified silica gel, contains multi-functional additive.
The grease is water and freeze resistant, dries up at a temperature higher than +100 °C; provides sealing of the threaded connection at normal pressure and low vacuum. Operating efficiency at temperatures ranging from -50 °C to +100 °C.
Applications: provides sealing of threaded connections, facilitates the threads screwing in and screwing out.
Substitute product: R-416.
Appearance and color: —
Effective viscosity, Pa•s, at 20 °C, not more than: 50
Effective viscosity, Pa•s, at -40 °C, not more than: —
Breaking strength at 20 °С, Pa•s, not less than: 160
Dropping point, °С, not below than: —
Colloid stability under load of 300 g, %, not more than: 18
The content of free alkali in terms of NaOH,%, not more than: —
Penetration at 25 °C, mm, 10-1: 300-340
Evaporation at 150 °C within 1 hour, %, not more than: —