HT PU 680 is a high-temperature grease with a synergistic effect of EP additives. It has excellent pressure absorption and excellent water resistance. Other properties are strong adhesion, good corrosion protection, high oxidation stability, good aging resistance, high pressure resistance <350 bar, good sealing effect, resistance to aggressive media.

HT PU 680 is used in iron and steel rolling mills for high-temperature lubrication using central systems for:
• Rolling bearings in continuous casting equipment (slabs and billets, rolling bearing calibration section)
• Conveyor equipment in continuous furnaces
• Annealing furnaces and foundry boilers
• Hot roller tracks in paper mills
• Asphalt machines in road construction
• Special applications in railways for the lubrication of spring bolts and as corrosion protection.