Tiling over bonding?

Repaired bathroom walls using bonding as removing tiles pulled plaster off. Had quotes from plasterers for skimming but it’s just way out of budget as we are getting someone in to do the tiling. Will tilers tile over a bonding coat?

Asked by Sian on 23rd Sep 2025
Expert Trade Answers
"It's too porous to tile straight onto. Shoukd be a coat of skim really on top of it, or at least a suitable primer"
Answered on 23rd Sep 2025 - Member since Sep 2024 - report
"Yes tiling over bonding is fine as long as it flat enough"
Answered on 23rd Sep 2025 - Member since Sep 2023 - report
"Yes you can but I would liquid waterproof the bonding first plus’s the bonding might be a little rough to tile over so a tricky one to give you a 100% answer without seeing it thanks"
Answered on 23rd Sep 2025 - Member since Apr 2023 - report
"Yes you can tile straight onto a bonded wall. (as long it's flat)
I would also add a coat of PVA over it as well.
If you do have the wall skimmed with plaster, then it's an absolute must to PVA over the skimmed wall. Or the tile adhesive won't stick to a skimmed wall."
Answered on 23rd Sep 2025 - Member since Jan 2022 - report
"Yes you can tile onto bonding however you need to prime it first with an acrylic primer ( not a PVA) so that the adhesive adheres correctly . They and get the wall as flat as possible so the tiler has a good chance of getting your tiles flat when fixing them."
Answered on 23rd Sep 2025 - Member since Sep 2023 - report
"Yeah nothing wrong with tiling over bonding,
Done it many times"
Answered on 23rd Sep 2025 - Member since May 2025 - report
"Hi, yes you can definitely tile over bonding. Just make sure the surface is level and applied adhesive evenly."
Answered on 23rd Sep 2025 - Member since Sep 2025 - report
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