Material

Aluminium

Aluminium needs stain treatment matched to its exact composition, coating and tolerance for moisture, chemicals and abrasion. Start with the mildest compatible route.

  • SurfaceNon porous
  • WashingSpot only
  • Colour run riskMedium
  • Reviewed2 September 2026

What aluminium can and cannot take

  • Heat Use with care
  • Water and soaking Tolerates it
  • Acids, including vinegar Avoid
  • Strong alkalis Avoid
  • Solvents Use with care
  • Chlorine bleach Avoid
  • Abrasives Avoid

Always test on a hidden area first and let it dry before you treat the visible mark.

General rules for aluminium

Use diluted mild detergent with a soft cloth, rinse and dry. Avoid strong acid, alkali, bleach, abrasive and prolonged degreaser contact because aluminium can pit, darken or lose its finish.

Check the label

Identify bare, anodised, brushed, painted or lacquered aluminium. The finish, rather than the base metal, sets the cleaning limit.

Stains on aluminium

Aluminium can be damaged by a cleaner that is harmless on another surface. Identify the substrate, coating, finish and adjacent parts before treating a stain.

Use the least aggressive route

Use diluted mild detergent with a soft cloth, rinse and dry. Avoid strong acid, alkali, bleach, abrasive and prolonged degreaser contact because aluminium can pit, darken or lose its finish.

Judge only when dry

A remaining patch may be residue, a changed patina, coating loss or absorbed contamination. Stop if a hidden test changes colour, gloss, texture, adhesion or strength.

Sources

What we checked and when. Where a manufacturer instruction disagrees with anything here, follow the manufacturer.

  1. Hem care instructions for metal finishes manufacturer

    Furniture manufacturer guidance covers chrome, copper, brass, powder-coated steel and stainless steel, using diluted mild detergent and soft cloths while excluding unapproved chemical and abrasive cleaners.

    Checked 2 September 2026

  2. Magnet kitchen owners manual for metal finishes manufacturer

    Kitchen manufacturer guidance covers stainless and brushed steel, chrome, copper and brass, recommending dilute liquid soap, immediate rinsing and drying, and warning against bleach, acid, solvent, alkali and coarse abrasives.

    Checked 2 September 2026