Clear-coat delamination requires a full panel repaint when peeling is widespread, continues beyond the visible edge or leaves no stable boundary for a durable local repair. A full repaint is also appropriate when removing failed clear exposes or damages the basecoat across much of the panel. One isolated defect may sometimes be repaired locally, but polishing cannot reattach clear coat that has separated.
How the repair scope is assessed
A body shop will inspect the roof, bonnet, boot lid or door under strong lighting and gently check whether surrounding clear lifts during sanding or air cleaning. On a Proton X70 roof, several peeling patches may indicate that adhesion has failed across the panel even if some areas still look glossy. The technician should identify the separation layer and consider contamination, insufficient sanding, an expired recoat window, prolonged weather exposure or incompatible refinishing materials. These are possible causes rather than confirmed faults until the coating layers are examined. Full-panel work normally involves removing loose and unstable material, feathering sound edges, applying primer or sealer where required, restoring the colour coat and then applying a compatible 2K clear coat. Blending clear within the middle of a large exposed panel can leave a visible or vulnerable edge, whereas refinishing to natural panel boundaries provides a defined stopping point. Adjacent panels do not automatically need repainting; colour matching and the location of the repair determine whether basecoat blending is necessary.
