VNIINP-263 grease (GOST 16862-71) - petroleum oil thickened with modified silica gel; contains a multifunctional additive. Grease has a good water and frost resistance, dries at temperatures above + 100°С; ensures the tightness of the threaded connection at normal pressure and shallow vacuum. It is efficient within the temperature range from -50 to + 100°С. Provides tightness of threaded connections, facilitates thread screwing in and out. Substitute - R-416.
Physical and chemical indicators of VNIINP-263 grease (GOST 16862-71)
|Name of the indicator||Norm GOST (TC)|
|Drop temperature, °C, not lower than||-|
|Penetration at 25 °C, 10-1 mm||300-340|
|Effective viscosity at 20 °C and mean gradient of strain rate 10 s-1, Pa-s, not more than||50|
|Tensile strength at 20°C, Pa||160|
|Colloidal stability, %, not more than||18|