Symptom • Edge mapping / repair telegraphing
Edge mapping / repair telegraphing
Repair-edge or seam outline showing through topcoat. Body-repair + coating cure issue, not booth-mechanical.
Repair-edge or seam outline showing through topcoat. Body-repair + coating cure issue, not booth-mechanical.
Quick answer
Edge mapping / repair telegraphing is a medium-severity paint-booth symptom. The most common root causes catalogued for this symptom are 3 distinct mechanisms. A 3-step diagnostic sequence is published below to isolate the cause.
Edge mapping / repair telegraphing FAQs
What causes edge mapping / repair telegraphing?
3 catalogued root causes for this symptom: under_cured_filler_primer: Filler or primer not fully cured before topcoat. Topcoat solvents penetrate and reactivate the partially-cured undercoat, producing wrinkling around the repair edge. — surface_roughness_mismatch: Body filler and OEM substrate sand to different smoothness; the topcoat shows the line. — inadequate_feather_or_isolation: Feathering of the repair edge did not extend far enough, or transition was not isolated with a sealer. Topcoat shows the seam outline.. The diagnostic sequence below walks through isolating each in order.
Do I need a service tech for edge mapping / repair telegraphing?
Usually no — this symptom responds to coating-system tuning, ambient-condition control, sensor calibration, or body-repair technique rather than filter replacement or booth service. The diagnostic sequence below walks you through the corrective actions. Escalate to WERCS only if the issue persists after working the diagnostic steps.
Sources
Primary references cited on this page.
- Automotive Coatings: Application Defectshttps://www.paint.org/coatingstech-magazine/articles/automotive-coatings-application-defects/
- Back-To-Basics: Contour Mappinghttps://rts.i-car.com/crn-904.html
- Shrinkage/Edge Mappinghttps://generalpaint.biz/support/painting-defects?defect=Shrinkage/Edge+Mapping
- Edge Mappinghttps://vmrpaints.com/pages/edge-mapping