Ceramic Coating High Spots: What They Look Like and What to Do
Recognise excess coating residue and understand why the appropriate correction depends on the product and how far curing has progressed.
Updated · NANOLAB Knowledge
Look for uneven residue
High spots are areas of excess or uneven coating that remain visible after application. They may appear as darker patches, rainbow-like areas or streaks when viewed at an angle. Dark paint often reveals them readily, but lighter finishes can hide them until lighting changes.
Do not assume every mark is a high spot. Polishing haze, water deposits and towel residue can create different problems that need separate treatment.
Timing affects correction
Fresh residue may respond to the product’s approved levelling or recovery process. Once material has cured, correction may require controlled polishing and local reapplication. The transition is formula-dependent; there is no universal rescue solvent or waiting time.
Avoid scrubbing a stubborn patch or spreading more coating over it without confirming the method. That can enlarge the area needing correction.
Prevent the same issue next time
Use a test section, appropriate lighting and clean towels. Inspect edges and curves before completing each work area. Replace loaded towels and revise section size when conditions change. Record any correction and check the finish again before release. Early identification makes the response more manageable and helps distinguish application residue from later contamination.
