Metal Plating Failures: Causes, Examples, and How to Prevent Them

Most plating failures are caused by poor pretreatment, incorrect coating thickness, or chemistry that’s out of spec.

When plating fails, the issue usually isn’t the final step—it’s something earlier in the process that wasn’t controlled properly.



These problems are avoidable, but they require attention to detail at every stage, from surface prep to final inspection.

Peeling & Delamination

Adhesion issues typically come from poor surface preparation.

If a part goes into the process with:

• Contamination
• Residue
• Improper cleaning



The coating won’t bond correctly. The result is peeling or delamination, sometimes shortly after the part is put into use.

Cracking from Over-Coating

Applying too much coating can create its own problems.

Every process has a defined thickness range. Exceeding that range can lead to:

• Cracking
• Stress in the coating
• Reduced durability



Staying within those parameters is critical for long-term performance.

Dull or Burnt Finishes

Finish quality is directly tied to the condition of the chemistry.

If solutions are:

• Out of balance
• Overused
• Not maintained properly



The result can be dull or inconsistent finishes.

Poor Quality Control Practices

Rushing a job increases the likelihood of failure.

Trying to push a process faster than it should be run can lead to:

• Missed steps
• Incomplete processing
• Parts that need to be stripped and redone



In many cases, that rework takes longer than doing it correctly the first time.

Most plating issues trace back to process control—surface prep, chemistry, and staying within the correct parameters. When those are managed properly, failures are far less likely and results stay consistent across runs.

Frequently Asked Questions