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Surface-Coating Mock-Ups: Keep the Approved Sample Available Through the Project

An approved mock-up is most useful when it remains identifiable and available during the full project. A photograph or a remembered description may not preserve every appearance detail needed for later comparison.

Updated · NANOLAB Knowledge

The key distinction

Define how the sample will be stored, handled and referenced after approval. Record the surface, preparation, product and relevant observation conditions. If the sample changes through cleaning, damage or exposure, note that history rather than treating it as an untouched reference. Keep the approval scope attached to the sample so it is not used for unrelated finishes.

Practical checks

  1. Assign the sample an identifier and link it to the written acceptance observations.
  2. Store or display it under conditions suitable for the material and the intended comparison.
  3. When production or site conditions differ, record the difference and ask whether a new representative sample is needed.

Example

Illustrative example: an approved metal sample is later cleaned with an undocumented product and used to judge a new installation. Its current appearance may no longer represent the original approval. Preserving its history prevents a changing reference from becoming an unexplained acceptance target.

Scope and limits

Do not describe a mock-up as a permanent material standard or laboratory reference unless it is managed as such. It supports a defined project decision. Product changes, different substrates or altered service conditions may require a fresh assessment rather than reliance on the old sample.

Related guidance

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

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Glass-Coating Mock-Ups: Include the Final Viewing Distance

A small sample viewed at arm's length may not answer how a coated glass installation will look from its normal viewing position. Include the intended distance and angle when agreeing the appearance assessment for a project.