Guidance by Scenic City Garage Coatings. Reviewed October 6, 2026. Planning information; onsite suitability is confirmed by the contractor.
Map the history of the stain
Mark repeated leak locations and one-off spills separately. Tell the assessor whether the source is still active. Photograph the area and keep names of any cleaners or degreasers used.
Ask what the preparation must achieve
The scope should explain how contamination will be addressed and how suitability will be evaluated afterward. Ask what happens if preparation reveals deeper contamination or unsound concrete. Do not apply an unknown cleaner or sealer to hide the stain before the visit.
Keep appearance and bonding separate
A remaining discoloration and a condition that prevents bonding are different questions. Ask what evidence supports the installation decision, what may remain visible and whether repair allowances could change.
Read the preparation scope and mechanical profiling guide. If an existing coating is already lifting, use the failure assessment guide.
Include the stain history in your project request. The final removal or treatment plan belongs to the contractor and selected system.
