Weld-Through Primer Guidelines: Audi
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 Audi recommends and where this information can be found.
This information, along with other part preparation guidelines, can be found in the General Information Body Repair, Body Collision Repair Manual. Audi states: "Always apply welding primer/structural adhesive (according to the repair manual) to both sides of the welding flange."
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 Audi information, check out the Audi OEM Information page.
Additional I-CAR Collision Repair News you may find helpful:
- Step-By-Step: Accessing Audi Repair Information
- Weld-Through Primer Guidelines
- Welding And MIG Brazing Hotspot
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