PCB conformal coating protects treated surfaces; dehumidification removes water from treated air. These address different conditions. A coated board does not establish a waterproof cabinet, and air control does not qualify a coating process.
Check the coating boundary
For the selected PCB coating, request the approved material, intended environment, coverage map, excluded areas and inspection criteria. Keep that evidence tied to the actual board assembly. This comparison concerns PCB conformal coatings, not cabinet-shell paint.
Verify the finished assembly
Review the coating’s inspection and compatibility evidence for the finished assembly, including any rework. Removing water from cabinet air does not demonstrate coating quality or correct an assembly defect. Follow the approved process for the selected coating and board.
Compare the evidence
| Protected object | Remaining issue | Evidence |
|---|---|---|
| PCB surfaces | Exclusions or defects | Coverage, adhesion, inspection |
| Cabinet air | Ingress and cold surfaces | Load, dew point, drainage |
| Both | Combined suitability unproven | Separate records and acceptance |
Assess the cabinet conditions
The enclosure corrosion guide relates risk to humidity, cold surfaces and contaminants. For recurring moisture ingress, review the removal requirement using the cabinet selection guide. Check actual temperature and humidity, leakage, operating conditions, airflow and drainage. A humidity target alone is not an equipment selection or a guarantee against corrosion.
Record the decision
Record only unresolved comparison questions: coated areas and exclusions, cabinet-air duty, supporting evidence, reviewer and follow-up. Label supplier statements, measurements and assumptions separately; keep missing evidence visible. This page compares coverage and air duty; it does not define a coating process or approve a project.
For Yakeclimate equipment discussions, bring the reviewed cabinet conditions and open integration questions. This comparison provides no application procedure or project approval.