Grease VNIINP-502 (TOR 38.101771-79) has high water resistance, adhesion, mechanical stability and conservation properties, electrical contact.
Operating efficiency at temperatures ranging from -40 °C to +100 °C.
Applications: low-current electrical contacts of modular switches. The substitute product — KSB.

Appearance and color: —
Effective viscosity, Pa•s, at 20 °C, not more than: 85-100
Effective viscosity, Pa•s, at -40 °C, not more than: —
Breaking strength at 20 °С, Pa•s, not less than: 350-470
Dropping point, °С, not below than: —
Colloid stability under load, %, not more than: 7
The content of free alkali in terms of NaOH,%, not more than: —
Penetration at 25 °C, mm, 10-1: 265-295
Evaporation at 150 °C, %, not more than: —