Print
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 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 under: Information ➤ Repair ➤ General Information ➤ 8. Body And Interior ➤ 81 Body Frame ➤ 810. General ➤ Welding, General. Volvo states:
- "Always use welding primer between welded panel flanges."
- Volvo 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 sacrifices the safety and quality of the repair.
For additional Volvo information, check out the Volvo OEM Information page.
Additional I-CAR Collision Repair News you may find helpful:
- Step-By-Step: Accessing Volvo Repair Information
- Weld-Through Primer Guidelines
- Welding And MIG Brazing Hotspot
Related I-CAR Courses
Article validated in 2024