Weld-Through Primer Guidelines: Jaguar Land Rover

Weld-through primers are generally a zinc-based product that are applied to the mating surfaces prior to welding. Corroding zinc forms zinc oxide which protects the steel. This is called sacrificial corrosion. For a quality weld to be made it’s required that the weld-through primer be removed from the direct weld zone before welding the joint when GMA welding. Many OEMs have a position on when and how to use weld-through primer or when it shouldn’t be utilized. Let’s see what Jaguar Land Rover (JLR) recommends and where this information can be found.

Per the JLR Workshop manuals:

  • "Apply JLR approved ‘weld through’ primer to all areas to be welded. Adhesives should not be applied to these areas."
  • "The welding primer must be allowed to dry before welding is carried out."

Both Jaguar and Land Rover recommend weld-through products from 3M and Teroson.

Jaguar Land Rover approved weld-through primers:

  • 3M part number 50410 or 05917 Weld-Thru II Coating
  • Teroson part number 333170

If you see 3M part number 09113 or 50410, those are U.K. part numbers. However, we have confirmed with our contacts at 3M that U.S. part number 05917 is the equivalent.

Use the vehicle-specific Workshop manuals to determine which type of welding is required for the repair you are performing. Failure to follow OEM procedures sacrifices the safety and quality of the repair.

For additional JLR information, check out the following pages:
Jaguar OEM Information
Land Rover OEM Information

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