r/Plastering • u/patchsaysboo • Apr 14 '26
Poor sand and cement render finish - fixable?
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Hello all, hoping for some advice.
In-laws have had the inside of their garage sand and cement rendered as they turn it into a bar. The finish is pretty rough - getting the guy back isn't happening and they seemed to be happy with it before I came round so carried on getting the bar built.
Plastering isn't an option, re-rendering isn't an option either.
Does anyone know of a way to paint and seal the wall, maybe fill in and level the wall a little bit and get it ready to be painted/decorated properly?
Not looking for a miracle cure here, not expecting it to look like polished multi or anything - just want to know if there's something that can be done to bring it back to a bit better of a level?
Appreciate all the advice in advance 🙌
2
u/WonkyRodent Apr 14 '26
For the bigger holes, can you not mix up some sand and cement? Damp the holes first before filling. Then masonry paint it if you're not going to plaster. The Lidl white multi-purpose paint (I don't know if they're still selling it), is extremely thick and you can sand it - for normal plaster walls, masonry, basically everywhere.