3M 05917 Weld-Thru Coating II (12.75 oz) is a professional automotive product from 3M’s collision repair and refinishing line. Engineered to 3M’s automotive-grade quality standards for professional body shop use in collision repair, surface preparation, and vehicle refinishing.
- Brand: 3M
- Size/Volume: 12.75 oz
- Country of Origin: USA
- Part Number: 05917
Application guidance: apply a thin, even coat to both mating metal surfaces and allow to tack (typically 5–10 minutes) before assembly. Too thick a coating creates weld contamination and porosity — a thin, consistent film is the target. After welding, inspect the weld zone for proper fusion and re-coat any bare metal areas exposed by grinding or heat discoloration before applying sealer and primer. Weld-Thru Coating II is compatible with MIG and resistance spot welding processes used in OEM-procedure structural repairs.








