The copper pinhole is crying due to "idle time."
Copper materials oxidize quickly, so they should not be left unattended. Immediate painting after polishing maintains adhesion.
Copper materials have a characteristic of rapid oxidation, making them prone to pinhole formation. If left uncoated for a long time after polishing, an oxide film forms, which reduces the adhesion of the coating. In particular, in high humidity environments, the oxidation reaction accelerates, and there are cases where gasification occurs during baking. Even if the appearance is clean, surface reactions are still progressing. As countermeasures, it is important to paint immediately after polishing and to shorten storage time. Additionally, managing air blowing after degreasing also affects adhesion. We provide detailed examples of improvements in copper materials in publicly available documents.
- Company：永和工芸
- Price：Other
