Ceramic Coating Supplier Trials: Use a Written No-Go List

The key distinction

Distinguish mandatory requirements from preferences before samples arrive. A mandatory requirement might be a documented application route for the intended substrate or an available packaging configuration. A preference might be a particular bottle appearance. Treating both as weighted scores allows a strong cosmetic result to conceal a fundamental mismatch.

Practical checks

1. Write the non-negotiable requirements in observable terms and name the evidence needed for each.
2. Review the list with the people who will install, package and support the product, not only the purchasing contact.
3. During the trial, record each item as met, unmet or unresolved. Keep unresolved requirements visible instead of awarding partial credit by default.

Example

Illustrative example: a distributor needs a system that can be supported by its existing installer network. A sample looks excellent, but the training requirement cannot yet be met. High appearance scores should not turn that unresolved operational requirement into an approval.

Scope and limits

Use a no-go item only for a genuine requirement, not as a way to favour a preferred supplier. If the requirement changes, document why and reassess every candidate on the same basis. This guide does not prescribe NANOLAB approval criteria.

Related guidance

• Moving a Private Label Coating Brand to a New Supplier
• A Supplier Interview for a Growing Coating Brand
• Coating Supplier Knowledge Transfer: Confirm the Receiving Team Can Use the Information
• Coating Bottle Ounces: Distinguish Fluid Volume from Mass

Discuss bulk supply and private-label requirements with NANOLAB. Use the current product documentation for formulation-specific instructions.