PPF, Glass & Other Surfaces2 min read

Aniline and Pigmented Leather: Why Finish Identification Comes Before Coating

Aniline and pigmented leather have different finish descriptions, so the word leather alone is not enough to select protection. Use the upholstery specification and care guidance to identify the exposed surface before proposing a coating.

Updated · NANOLAB Knowledge

The key distinction

Industry definitions distinguish leather with a visible natural grain and little or no pigmented surface finish from leather whose grain is concealed by a pigmented finish. Those definitions help frame questions, but they do not identify a seat reliably from one photograph or approve a particular aftermarket product. Construction, repairs and the component maker's requirements still matter.

Practical checks

  1. Locate the material specification or ask the upholstery supplier to identify the finish.
  2. Record existing treatments, repairs and any restrictions on cleaners or protective products.
  3. Evaluate only an approved treatment route, checking appearance and feel against an untreated reference where that assessment is permitted.

Example

Illustrative example: a customer wants the same protection used on a previous vehicle's pigmented seats. The new upholstery is described as aniline. The earlier result does not establish compatibility; the material change requires a new recommendation and an appropriate evaluation.

Scope and limits

Avoid universal claims that all automotive leather behaves the same way. A drop test or tactile impression is not a substitute for reliable identification. The source definitions explain terminology and do not certify NANOLAB products for any leather category.

Related guidance

Technical references: Leather Working Group definitions. These sources describe their stated methods or products; they do not certify NANOLAB products or establish compatibility with an unlisted surface.

Ask NANOLAB about the exact product and intended use. Use the current product documentation for formulation-specific instructions.

PPF, Glass & Other Surfaces2 min read

Wheel Cleaner Compatibility: Check Every Exposed Finish on the Wheel

A wheel can contain several exposed finishes, including paint, clear coat, bare metal, decorative pieces and repaired areas. Cleaner approval for one finish does not automatically cover every part of the assembled wheel.