Weld-Through Primer Guidelines: Volvo

Weld-Through Primer Guidelines: Volvo

Weld-through primers are generally a zinc-based product that is 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 MIG 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 Volvo recommends and where this information can be found.

This information, along with other part preparation guidelines, can be found in the vehicle-specific repair manual, in the General area. Volvo states:

  • “for MAG welding use weld-through primer on all internal flanges.
  • for resistance spot welding apply weld-through primer between the panels.
  • does not specify a specific weld-through primer.”

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

For additional Volvo information, check out the Volvo OEM Information page.

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