Is Bathroom & Shower Cleaner safe for polished stone?Updated 7 hours ago
TL;DR: Generally yes on sealed stone, but always spot test first. Bathroom & Shower Cleaner is mildly alkaline at pH 8 and non-abrasive, which is gentler than the acidic cleaners that actively etch calcium-based stone. Sealants vary across stone types and ages though, and unsealed or porous stone can react unpredictably. Spot test in a hidden area, keep contact time short, and rinse thoroughly. For cherished or expensive stone, check the supplier's care instructions first.
Is Bathroom & Shower Cleaner safe for polished stone?
✓ Generally safe on sealed stone
Sealed marble, granite, travertine, limestone and engineered quartz. Bathroom & Shower Cleaner is mildly alkaline at pH 8 and non-abrasive, gentler than acidic descalers or scouring cleaners. Spot test first, keep dwell short, rinse thoroughly.
When should I avoid using it on stone?
⚠ Skip on these
Unsealed or porous stone. Old or worn sealants, typically five years or more without re-sealing. Honed or matte finishes where residue shows. Heritage or bespoke stone, where you should check with the stonemason. Anything you are not confident about. In those cases use a dedicated stone-safe cleaner or plain water on a microfibre, and save Bathroom & Shower Cleaner for the surrounding tiles and fixtures.
How do I spot test on stone?
✓ Four-step spot test
Pick a hidden spot. Corner of a tile, under a basin lip, edge of a worktop. Somewhere you would not mind if the test went wrong.
Spray, wait sixty seconds, rub gently. Soft microfibre only. No scrubbing, no abrasive pads.
Rinse and dry. Water rinse, clean dry cloth. Look at the spot under good light for dulling, discolouration or etching.
Check again in twenty-four hours. Some reactions appear slowly. If the patch still matches the surrounding stone after a day, you are clear.
What is the method for cleaning stone?
✓ Stone method
Spray onto a soft microfibre rather than directly onto the stone. Wipe gently. Rinse with a clean damp cloth. Dry. Applying to the cloth keeps contact time short and stops product pooling in seams or running into unsealed edges. Never let it dry on the stone, and skip the long dwell you would use on tiles or glass.

Mildly alkaline at pH 8 and non-abrasive, rather than the acidic chemistry that etches calcium-based stone. Twelve ingredients, made in Australia.

Universal Cloths 3pk · soft microfibre only
Stone wants a soft cloth and nothing else. Spray the cloth, wipe gently, then rinse and dry with a second clean one.
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Last reviewed: August 2026 · Koh UK

