Guidance by Scenic City Garage Coatings. Reviewed October 6, 2026. Planning information; onsite suitability is confirmed by the contractor.
Document the failure before disturbing it
Take one photo of the whole floor, then close views of each affected area. Include a ruler or another size reference. Mark the location on a rough sketch: tire path, door opening, drain, workbench or back wall. Record when you first noticed it and whether it changes after rain, cleaning or parking.
Keep the old invoice and product names if you have them. The installer needs to know whether this is a thin paint, a resin coating, a clear sealer or an unknown system. Avoid grinding or stripping the floor yourself before any existing warranty has been reviewed.
Separate wear from a layer lifting off
| Observation | Question for the assessor |
|---|---|
| The finish is scratched but remains attached | Is the issue cosmetic wear, and is a compatible refresh possible? |
| The clear layer lifts while the color stays below it | Is the failure between coats rather than at the concrete? |
| Coating lifts down to bare concrete | How will substrate bonding, contamination and moisture be evaluated? |
| Several areas lift beyond the visible patch | How much of the remaining system is actually sound? |
These observations organize a conversation; they do not diagnose the cause. Hempel’s floor-coating troubleshooting guide distinguishes delamination at the substrate from separation between coating layers and identifies preparation, contamination and moisture among possible causes. Its product-specific repair instructions are not universal instructions for your floor.
When a local patch deserves consideration
Ask the contractor to identify the boundary of the affected area, explain why the adjacent coating can remain, and name the compatible repair system. The proposal should cover removal of unsound material, preparation at the transition and the expected appearance of the repair.
A small area of damage does not automatically require replacing the entire floor. But a patch that leaves an unsupported edge or ignores the original cause can fail again. Ask what evidence supports the chosen boundary rather than accepting “we’ll touch it up” as a scope.
When removal becomes the more defensible option
Multiple lifting areas, a failed prior patch, soft or uncured material, and uncertainty about the remaining bond all justify closer investigation. If the base cannot support the new finish, putting more coating above it does not repair that missing bond. The contractor should explain whether removal will be local or across the floor and how exposed concrete will be prepared.
Read the old coating removal guide and the guide to coating over a sound existing floor. They address different starting conditions.
Compare repair proposals using the same boundary
- Which area is being removed, and what remains?
- What assessment supports keeping the remaining coating?
- What happens if more unsound material is found during preparation?
- How will color, gloss and texture differ at the repair?
- What return-to-service instructions apply to the repaired area?
For a Chattanooga-area request, include the existing system if known, approximate floor size, the location of the peeling and any previous repair. Request a coating assessment conversation before purchasing a patch kit or agreeing to a whole-floor replacement.
