Material

Radiator

Radiator 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 radiator can and cannot take

  • Heat Avoid
  • Water and soaking Use with care
  • Acids, including vinegar Avoid
  • Strong alkalis Avoid
  • Solvents Avoid
  • 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 radiator

Use a soft cloth or sponge with non-abrasive pH-neutral detergent, wipe off all residue and dry. Avoid aggressive chemical, solvent and abrasive pads that can damage the paint film.

Check the label

Turn the heating off and let the radiator cool fully. Confirm factory powder coat, decorative paint and nearby wall or floor finishes.

Stains on radiator

Radiator 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 a soft cloth or sponge with non-abrasive pH-neutral detergent, wipe off all residue and dry. Avoid aggressive chemical, solvent and abrasive pads that can damage the paint film.

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. Stelrad radiator care advice manufacturer

    Radiator manufacturer guidance recommends warm water with non-abrasive pH-neutral detergent, thorough rinsing and a soft cloth or sponge, and excludes aggressive chemicals and abrasive pads.

    Checked 2 September 2026

  2. 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