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BLOG ARTICLE / Colour testing

Comparing colour: assess spray-out cards against the vehicle

BUWO editorial team · 9 November 2026 · 2 min read

A coated card becomes useful through a clearly described comparison. Reference panel, sample condition and viewing situation must align. Assessment is a separate stage after spraying.

← Topic overview ↗
BUWO Classic coverall and test spray station in a workshop: Comparing colour: assess spray-out cards against the vehicle

Choose the reference panel

Define the vehicle area used for comparison. A colour code alone does not describe the actual condition of every surface. Keep the selected reference identifiable in the record.

Record the card and mix assessed. With several variants, a clear identifier is better than remembering which card stood on the left.

Include sample condition and system requirements

Assess the sample at the stage specified by the coating system. Drying and coating build belong to its documentation. General blog advice cannot replace these across all materials.

Distinguish observation from approval: an initial preparation check is not automatically the final decision for the vehicle job.

Do not vary lighting and angles accidentally

PPG’s spray-out SOP includes different viewing angles. Consult the requirements of your own system, particularly for effect colours whose appearance changes with position.

Describe the viewing conditions actually used. A different location or light should not silently be interpreted as a material difference.

Keep the result usable

Keep observations assigned to the card and job. Variant, date and vehicle reference make later assessment more traceable and support further tests.

Relevant BUWO products

Enquire about a test spray station for your workshop

Tell us your paint system, card format and intended workflow. We can clarify connections and the version using product documentation.

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Sources and information date

Product data: BUWO catalogue, export dated 20 October 2026. Editorial information: 9 November 2026. Confirm the actual version and documentation when enquiring.

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