Describe the condition precisely
Record the affected side, region, pad or contact reference, and relationship to the intended opening. Include scale and lighting that make the observation interpretable. Compare it with the released opening geometry. A photograph labeled poor coverlay does not explain whether the problem concerns appearance, insulation, joining access, or connector contact.
Coverlay observation categories
| Investigation item | Question | Evidence to retain |
|---|---|---|
| Opening shift | Which required area is lost or newly exposed? | Overlay with copper and drawing |
| Adhesive encroachment | Does material enter a joining or contact zone? | Close image and functional boundary |
| Separation | Which interface and region are involved? | Preserved sample and exposure history |
| Surface damage | Does handling or contact explain its location? | Stage and installation observations |
Check the functional consequence
For soldered pads, review the intended joining area and inspection access. For a terminal, compare the contact path and adhesive-exclusion requirement with the mating drawing. For covered conductors, determine what insulation boundary was specified. Use the contracted criteria and responsible technical review rather than inventing an acceptance limit from a visual impression.
Trace the observation back through the build
Compare the plotted geometry, material definition, alignment requirements, and processing records. Record whether the issue is isolated, repeated by panel position, or associated with later assembly handling. Preserve samples before cleaning, trimming, or reheating. If a drawing change is proposed, confirm that it improves the required functional area without exposing neighboring conductors or creating a new assembly problem.
Before you release the design
- Use separate terms for alignment, flow, separation, and damage.
- Identify the functional boundary on the drawing.
- Apply agreed acceptance criteria and record authorized deviations.
- Preserve the as-found condition before attempting repair.
Watch points
- Cosmetic appearance alone does not define every functional acceptance decision.
Practical questions
Is every visible adhesive edge a defect?
Judge it against the intended construction, functional exclusion areas, and agreed acceptance basis. Location and effect matter; a generic photograph cannot supply the criterion.
Can a larger opening solve adhesive contamination?
It is a possible design change requiring review. Check neighboring exposure, registration, mechanical support, and the actual process cause before adopting it.
Technical references
References support the material or design context. Check the exact grade, part number, document revision and project conditions before release.Updated 27 September 2026 · Technical content policy · Engineering guidance supports project review; the agreed drawing defines the build.