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Which products are compatible with Grout Brush?Updated 8 days ago

TL;DR: Pair Grout Brush with Universal Cleaner for everyday grout, Bathroom & Shower Cleaner for soap scum and limescale, or Kitchen Grease & Oil Cleaner for kitchen grease. It also clips onto Grout Brush Pole. Ideal on cement and epoxy grout. Go gentle on silicone sealant and polished stone, and spot test first.


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Koh Grout Brush on tile grout
Koh Grout Brush in use

Which grout types and surfaces does Grout Brush work on?

Grout Brush is ideal on cement-based grout, whether sanded or unsanded, on epoxy grout, and on textured stone or porcelain tile. Silicone and acrylic sealant is soft, so apply minimal pressure there. High-gloss marble, travertine and polished natural stone can scratch if over-scrubbed. Spot test delicate surfaces with light pressure before committing to a full scrub.

Koh Grout Brush bristle detail

✓ Ideal surfaces

Cement-based grout, sanded or unsanded, epoxy grout, textured porcelain and matte ceramic tile. The stiff but flexible bristles bite into the channel without scratching the surrounding tile.

Cement grout Epoxy grout Textured tile

⚠ Use with caution

Silicone and acrylic sealant is soft, so apply minimal pressure and short strokes. High-gloss marble, travertine and polished natural stone can scratch if over-scrubbed. Spot test in a hidden corner before you commit to a full scrub.

Silicone: gentle only Polished stone: spot test Light pressure

Full technique is in How to use: Grout Brush


Koh Grout Brush

Grout Brush

Long bristles for larger grout areas, short bristles for corners and tight spots.

Koh Grout Brush Pole

Grout Brush Pole

Clip Grout Brush onto it for floor grout and outdoor tiles. No bending, no kneeling.

Browse all Grout Brush articles

Last reviewed: August 2026 · Koh UK

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