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P
tube welding
Number of products: 2
Application: tube welding
Metal: steels [P]

WEDOLiT FW 7651

Water-miscible, fully synthetic coolant

WEDOLiT FW 7651 is suitable for the manufacturing of welded steel tubes. It fulfills the requirements regarding lubrication and cleanliness of the tubes and rollers as well as the corrosion protection of the tubes and the system (in a concentration of 4 - 6%).

  • Due to its thermal stability, the product can be used in the whole production line (forming, welding, calibration, sawing)
  • No emulsification of mineral oils and engine lubricants. Therefore, the application of an anticorrosion oil is possible (e.g. on the Turk’s head of the tube welding engine in the manufacture of profiled tubes)
  • Can be centrifuged without loss of active substances
  • Removable with organic solvents or alkaline industrial cleaners
  • A bright workpiece surface is obtained after annealing


  • Recommended mixing ratio
  • Tube welding:  from 4 - 6%


WEDOLiT FW 7840

Water-miscible, semisynthetic coolant

WEDOLiT FW 7840 is suitable for the manufacturing of welded steel tubes. It fulfils the requirements regarding lubrication and cleanliness of the tubes and rollers as well as the corrosion protection of the tubes and the system (in a concentration from 7%).

The product is approved by Daimler Chrysler (QSO 040305) under the name WEDOLiT K 911.

  • Due to its thermal stability, the product can be used in the whole production line (forming, welding, calibration, sawing)
  • Can be centrifuged without loss of active substances
  • Removable with organic solvents or alkaline industrial cleaners
  • A bright workpiece surface is obtained after annealing


  • Recommended mixing ratio
  • Tube welding:  from 7%