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Process Guide

2026-06-16 00:00 1 min read

Copper passivation vs. sealing treatment

Clarify the relationship between passivation, sealing and anti-oxidation protection.

Copper passivation vs. sealing treatment

Key takeaways

Copper discoloration is often linked to residue, moisture and air exposure time.

Sealing can strengthen oxidation resistance during storage and shipping.

Degreasing, passivation and sealing should be validated as one workflow.

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