description staburags nbu 4, 12 are lubricating greases based on mineral oil and barium complex soap. these products are resistant to very high specific surface pressure, thus ensuring good wear protection. inaddition, they are resistant to corrosion, water and many diluted alkaline and acid solutions application staburags nbu 4 has been used successfully on high-speed rolling bearings exposed to humidity or ambient media. it is suitable for rolls,spindles, cam rollers, tensioning rollers and motors.staburags nbu 12 is efficient on medium-speed rolling bearings subject to humidity or ambient media. it is used on water pumps, wheel bearings and motors; and in the textile industry, on all wet processing equipment such as washing,mercerising and dyeing machines. application notes these greases are applied by brush,spatula or conventional metering systems. minimum shelf life minimum shelf life is approx.60 months when stored carefully in dry rooms and unopened original packs. pack sizes 400 g cartridge 1 kg can 25 kg bucket