Polishing Quality Module

The Polishing Quality module evaluates how well a high-gloss surface has been polished by simultaneously quantifying gloss, haze, sharpness/DOI and polishing defects such as scratches, swirls and holograms. It turns what would normally be a subjective visual judgement into objective, repeatable numbers that closely reflect how clean, sharp and defect‑free the surface appears to the human eye.

Purpose of this module

  • Optimise and control polishing processes by measuring the presence and severity of fine scratches, swirls and holograms together with gloss, haze and sharpness.
  • Provide perception‑aligned metrics that allow OEMs, body shops and suppliers to agree clear pass/fail limits for polishing quality, reducing rework and disputes.

Where this module can be used

  • High‑gloss automotive exterior and interior components, including clearcoats, spot repairs, piano black trims and high-end refinish work.
  • Premium consumer goods, furniture, glass and plastic parts where ultra‑smooth, scratch‑free finishes are critical for perceived quality and brand image.

What this module measures

  • Gloss, haze (including LogH / LogH C) and sharpness/DOI to characterise overall reflectivity, depth of finish and image clarity of the polished surface.
  • Scratch and polishing defect metrics such as scratch length, scratch count, total area and visibility giving a detailed map of swirl marks and micro‑scratches.

How to use this module

  • In Rhopoint Appearance Elements, select the Polishing Quality module, choose the correct adaptor or stand for the part geometry, and calibrate on the supplied reference tile as recommended.
  • Position the Aesthetix sensor over the area of interest (for example a polished panel or spot repair), trigger one or more measurements, then save the numerical results and images into the relevant job, batch or template.

How to interpret the results

  • Use gloss, haze and sharpness/DOI values to confirm that the overall level of mirror‑like finish meets specification, and to detect over‑ or under‑polishing with the haze parameters.
  • Review scratch length, area, count and visibility values (and corresponding images) to decide whether swirls, holograms and micro‑scratches are below acceptable thresholds, and to compare different polishing compounds, pads or process steps.