Preparing a Car When the Existing Coating Is Unknown
Handle an uncertain protection history through records, inspection and a confirmed preparation process before applying a new coating.
Updated · NANOLAB Knowledge
A used vehicle may arrive with strong beading but no reliable coating record. That observation does not identify the product or establish that a new coating can be applied directly over it.
Look for useful records
Ask for installation invoices, aftercare cards and previous detailing information. Record local repairs and any recent maintenance products. A seller’s general statement that the vehicle is "ceramic protected" may be incomplete rather than a technical specification.
Inspect the clean surface and note differences between panels. Do not assume uniform treatment across a vehicle with repaired or partially wrapped areas.
Choose an approved preparation route
Discuss the uncertainty with NANOLAB before selecting a new system. The process may require removal of existing protection and appropriate correction, but the method must respect paint condition and surface material.
Avoid layering a new product over an unknown one simply because a small area initially looks glossy. Immediate appearance does not establish long-term compatibility.
Document the new starting point
Record the preparation performed and any limitations that remain. Identify the exact new product, covered surfaces and installation date at handover so the next maintenance decision is better informed.
Use old-coating removal guidance and wax and sealant preparation. If the paint history or removal process cannot be assessed confidently, obtain a professional inspection before proceeding with full-vehicle application.
