TechnicianVision · Knowledge base
Repairer Driven News: Rust Under Body Filler
I-CAR · May 28, 2020
Summary
This article summarizes a 3M webinar explaining that rust formation under body filler is caused by environmental moisture, air, and contaminants rather than the filler itself. It highlights the importance of proper surface preparation and environmental control to prevent corrosion.
What to do on the job
Ensure complete removal of moisture and contaminants from the substrate before applying body filler, and control the shop environment to prevent condensation.
How to use it
Use this document to justify the necessary time and materials required for proper surface preparation, climate control, and corrosion protection steps prior to applying body filler.
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