LOCTITE LB 8040- Lubrication LOCTITE® LB 8040 is a special mineral oil designed to free Lubricant - emergency repair. Shock freezing (-40°C). rusted, corroded and seized parts. The shock-freezing effect Releases rusted, corroded and seized components. Wicks will cool parts instantly down to -43 °C and cause directly into the rust by capillary action. microscopic cracks in the layer of rust. This allows the lubricating ingredients to wick directly into the rust by capillary action. The product leaves a thin film on the released parts that lubricates and prevents rust.