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Plastering & Rendering

Plastering mistake - help needed!

Anonymous user 23/02/2024 - 3.31 PM

Hi everyone, I've accidently used Thistle Multi Finish as a bonding layer for some a small section of plastering in house (I had a complete blonde moment, used the wrong bag and am kicking myself for it!). I would say I've applied about 10mm of it (2 layers, PVA and water mixture as a sealant first) in total. I have the last 2mm to finish as the finishing coat. What would everyone recommend that I do? Should I wait a week to let the first 10mm dry, see if/how it cracks? Should I apply another PVA seal again? Any help would be recommended! PS it's on a small section of wall where a chimney breast used to be. The plaster has gone ontop of a cementitious coat which I used to seal brickwork.

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4 Answers

Anonymous user

Don't worry it will be fine, as long as it has bonded to the background then you will be fine. The only reason we normally use bonding coat (purple bag) is because it has exfoliated polystyrene in it which makes it lighter when its dry. No need to leave it to dry out, as long as it's set then you can apply the finishing coat. You can use multi finish for this also. The only back coat that you leave to dry out is sand and cement as it shrinks and cracks so you let all the shrinkage happen before you apply the finishing plaster, that way you won't get shrinkage cracks on the finished product. Multi finish doesn't shrink so no need to wait. Hope that helps 😊

Answered6 April 2020

Jones plastering solutions

Rating: 5 out of 5

Llanelli

we have all done that over the years , give it a couple of days to dry out , pva it as normal and then skim over it it will be fine

Answered6 April 2020

Emscote Plastering

Rating: 5 out of 5

Warwick

Apply pva use the rest of the multi finish and just get on with it stop flapping

Answered5 April 2020

NM Johnson plastering services

No reviews yet

Luton

I would chop it off and put on some hard wall or bonding and then apply the finish?

Answered6 April 2020