Can you paint bathroom tile?
Yes, on walls. Tile is glazed and non-porous, so adhesion depends entirely on mechanical abrasion plus a bonding primer — ordinary primer slides off it. Use a bonding primer. Prep decides whether the finish is still attached in two years, so it is worth more of your time than the colour choice.
Short version
- Yes, on walls.
- Prepare it: degrease thoroughly, then abrade the glaze with sandpaper until it is uniformly dull. clean the dust off before priming.
- Prime with a bonding primer.
- Most common failure: chipping at edges and grout lines, and coating failure in constantly wet areas.
How to prepare the surface
Degrease thoroughly, then abrade the glaze with sandpaper until it is uniformly dull. Clean the dust off before priming.
Then prime with a bonding primer. Priming is not optional on this substrate — it is the step that decides whether the finish is still attached in two years.
What to watch out for
Wet areas and floors are a different proposition. Constant water and foot traffic defeat most coatings on tile, and a shower floor is the least likely place for a paint job to survive.
How this job usually fails
Chipping at edges and grout lines, and coating failure in constantly wet areas.
Common mistakes
- Skipping the primer because the existing surface "looks fine" — adhesion is decided by the substrate, not by appearance.
- Recoating on "dry to touch" rather than the recoat time on the product's data sheet.
- Using wall paint on a surface that gets handled or walked on.
- Painting in direct sun or on a hot surface, which stops the film levelling.
Related questions
Sources
- Sherwin-Williams. Product technical data sheets (accessed 2026-08-17).
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