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Glass Coating Tests: Distinguish Etching from Removable Deposits

A visible mark may be material on the glass or a change in the glass surface. Coating over it does not resolve that distinction.

Updated · NANOLAB Knowledge

Practical approach

Use the glass manufacturer's appropriate inspection and cleaning route. Document the condition after cleaning and before treatment.

A deposit that clears under approved cleaning presents a different task from a persistent altered surface.

Decision limits

Do not promise restoration from a photograph or assume a protective coating will hide permanent damage.

Related guidance

Discuss the intended surface with NANOLAB. Use the current product documentation for formulation-specific instructions.