How to Remove Stains and Scratches from Tiles

Glazed porcelain cannot really be stained; the glaze is glass. What people call a stain is nearly always something sitting on the surface, absorbed into the grout, or a metal scuff — and each needs a different treatment.

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By stain type

MarkTreatmentNote
Grease and oilAlkaline degreaser, leave to dwellCommon on kitchen floors and splashbacks
Metal scuff marksMild abrasive cream or fine nylon padMetal transferred onto the glaze, not a stain
RustOxalic acid based removerNever on natural stone
Cement or grout hazeDilute acidic haze removerOnly on porcelain; rinse thoroughly
Hard water depositsMild acid or limescale removerAvoid on marble and limestone
Ink, dye and markerSolvent, then neutral cleanerTest on an offcut first
Coffee, tea, wine on groutOxygen bleach paste, dwell then scrubThe grout absorbed it, not the tile
Mould in groutDilute bleach or dedicated mould removerFix the ventilation or it returns
Rubber and shoe marksNeutral cleaner and a nylon padVery common at entrances

Metal scratches are not scratches

A grey line left by a chair leg, a ladder foot or a dragged appliance usually is not a scratch in the tile at all. Porcelain glaze is much harder than aluminium or mild steel, so the softer metal gives way and leaves a smear of itself on the surface.

That means it comes off. A mild abrasive cream cleaner and a fine nylon pad will lift it without touching the glaze. People replace tiles over marks that a few minutes of work would have removed.

A genuine scratch — from grit, which is harder than the glaze — is a different matter and cannot be removed. It can only be disguised. This is why entrance matting and matt finishes matter: matt surfaces diffuse light and hide the scratches that a polished floor displays.

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Can porcelain tiles be stained?

Glazed porcelain effectively cannot — the glaze is a glass surface with nothing for a stain to penetrate. What looks like a stain is almost always residue on the surface, something absorbed into the grout, or a metal scuff mark.

How do I remove metal scratches from tiles?

They are usually not scratches. Softer metals like aluminium leave a deposit on the harder glaze, and a mild abrasive cream with a fine nylon pad lifts it off without damaging the tile.

How do I remove stains from grout?

Grout is porous and absorbs what the tile repels. An oxygen bleach paste left to dwell for ten minutes then scrubbed along the joint handles most organic staining. Epoxy grout does not absorb at all, which avoids the problem permanently.

What removes cement haze from new tiles?

A dilute acidic cement haze remover, applied to a pre-wetted floor and rinsed off thoroughly. Wet the grout first so the acid cannot attack it, and never use an acidic product on natural stone.

Ask about stain-resistant specifications

Glazed porcelain with epoxy grout removes nearly every staining problem before it starts.

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