Porcelain · Hard water & limescale

How to remove hard water stains from porcelain

  • Time10 to 20 minutes
  • DifficultyEasy
  • SurfacePolished or matte porcelain

By the Stone Film Sydney team · Updated

Before you try anything: always speak to a professional before cleaning, treating or applying any product to your stone. Every slab is different, and the wrong product can cause permanent damage. Contact us or a qualified stone restorer first.

Quick answer

Porcelain is acid-resistant, so limescale comes off with an ordinary bathroom descaler or a 50:50 mix of white vinegar and water. Leave it a few minutes, wipe, rinse and dry.

First, check what you are dealing with

  • White crust around taps: limescale.

What you need

  • White vinegar or descaler
  • Microfibre cloth

Step by step

  1. Apply

    Wipe on a 50:50 vinegar and water mix, or a descaler, over the scale.

  2. Wait

    Leave three to five minutes to dissolve the minerals.

  3. Rinse and dry

    Rinse with clean water and dry.

What not to use on porcelain

  • Scourers, steel wool and abrasive creams on a polished surface.
  • Mixing cleaning chemicals, especially bleach with anything else.

When to call a professional

A porcelain repairer can fill chips with colour-matched resin; scratches through the printed layer cannot be polished back.

Understanding hard water and limescale on porcelain

Porcelain does not react with kitchen acids, so it does not etch.

Porcelain problems are usually residue, metal marks, chips on edges, or scratches through a polished glaze.

A porcelain repairer can fill chips with colour-matched resin; scratches through the printed layer cannot be polished back.

Good to know

Porcelain is one surface where an ordinary bathroom descaler or diluted white vinegar is perfectly safe.

Stop it happening again

Whether yours is large-format marble-look and concrete-look porcelain slabs, repairing it fixes today's mark; protecting it stops the next one. Our clear Stone Protection Film sits over the surface, so marks stay on the film, not the surface. Choose Gloss for polished porcelain or Matte/Satin for honed and matte finishes. The protection is identical. It is installed across Sydney with a 10-year written warranty.

How we protect porcelain · Cleaning natural stone · Hard water & limescale on every surface

Frequently asked questions

Yes. Porcelain does not react with kitchen acids, so it does not etch.
Dry around taps and the sink after use.
The same method works: it is mostly minerals bound with soap.
A clear protection film over the porcelain stops liquids and acids ever touching the stone. Stone Film Sydney installs it across Sydney in Gloss or Matte/Satin with a 10-year warranty.

Protect your porcelain before the next spill.

Request a free quote online or by email. We will call to arrange an on-site visit or a quote over the phone.