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Architectural Coating Projects: Track Runoff Across More Than One Material

A cleaning or coating process can contact adjacent materials through runoff even when the applicator stays on the intended panel. Map that route before work so compatibility decisions cover the actual exposure area.

Updated · NANOLAB Knowledge

The key distinction

Look at the assembly from the point where liquid is applied to the point where it is collected or removed. Include seals, frames, decorative metal and surfaces below the work. An approved method for the main panel does not automatically approve contact with every neighbouring material. Access and containment arrangements must also be appropriate for the site.

Practical checks

  1. Identify the main treatment surface and the materials along the likely runoff path.
  2. Check the product and component instructions for those contacts and agree protection or sequencing measures with the responsible team.
  3. Trial the permitted process on a representative area and inspect adjacent surfaces as part of completion.

Example

Illustrative example: glass cleaning liquid drains onto a decorative metal panel below. The glass result is satisfactory, but the metal was not included in the compatibility review. Mapping the runoff would have made that second surface part of the work plan before application.

Scope and limits

Do not improvise chemical containment or drainage changes that conflict with site requirements. Where a safe, approved route cannot be established, revise the method or scope. A neat application boundary on the drawing does not define every real product-contact boundary.

Related guidance

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