Metal Surface Preparation Around A Local Aluminum Defect

Prepare only the defined area and keep tools and cleaning materials organized so residue is not spread across the part. Do not infer hidden integrity from a cleaned appearance. When coating identity, contamination, or the extent of damage remains uncertain, pause. Finish by recording the visible condition before the next repair step.

related metal surface preparation guide surface preparation around a local defect should preserve the information visible at the edge of the damaged area. Review the surrounding finish, contamination, loose material, and transition to sound-looking metal before cleaning. Remove detachable debris carefully while keeping the repair boundary clear.