New plaster sanding

I have had walls plastered and most of it is ok but there are small areas down the edges which have been left quite rough. They are in the corners and about 1" wide and. I don't know how to deal with these. Should i mist coat first or sand them down first? I am not a diy natural ( am also a woman!)so i am quite stressed about trying anything.

25 Answers

united build ltd
0 Reviews
you have to sand down first then apply mist coat.

United Build
27th Jan 2018
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Leedec services ltd
7 Reviews, 100% Positive
Sand back smooth,mist coat then if there still not perfect use decorator's caulk that will fill the void that your plasterer has left unfortunately.
13th Nov 2017
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M.M Construction
8 Reviews, 88% Positive
just use a very fine sandpaper don't rub to hard, may take a bit of time.
1st Jan 2018
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Hi personally I would just give them a good rub down before any painting starts hope this helps Danny.
9th Dec 2017
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SOS Buildings UK Ltd
19 Reviews, 100% Positive
You can try to sand it down with 80 sanding paper.
21st Nov 2017
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You can sand of if required that do some filing use quick dray filler and send again. Than you can paint.
19th Dec 2017
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Patchett & Sons Property Solutions
2 Reviews, 100% Positive
I personally would bet some medium and fine sand paper and start just gently rubbing it down until you have it how you require it then lightly use the fine paper to smooth it off before decorating.
27th Dec 2017
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B&D Plastering
1 Reviews, 100% Positive
Hi there this is where the plasterers have used a brush in the corners , all us plasterers do it but normally trowel it out . but shouldn't be that much of a problem if you just lightly run a little sandpaper down the edges first before the mis coat .. if it's really bad and still isn't smooth after that then this would mean it is a poor job ... call them back if you are not happy with it . I'd always gladly give advice to all my customers and help them where I could , or go back if necessary...
hope this helps
B&D Plastering
25th Jan 2018
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Ab.services
7 Reviews, 100% Positive
Hi hope I can help use a straight scraper with that u can scrap any high lumps off but be careful not to dig the plaster or you will need to fill. Use a square sanding block to get tighter in to edge remover your ppe ie: dust mask eye protection. When painting use a cheap white emulsion 70% paint 30%water mixed together as a base coat.
31st Jan 2018
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TCD plastering
2 Reviews, 100% Positive
The rough areas down the edge of the beads are a result of the plaster not being applied thick enough and probably because s/he only ran the float one way over (up and down, or just sideways) instead of both ways, a light sand with really fine paper will make these hollows less noticeable depending on how deep they are, without seeing them and presuming that they are deep, I'd suggest filling them with a light filler (one strike) and then using a fine sand paper when dry.
19th Feb 2018
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L&L solutions
1 Reviews, 100% Positive
You should give the walls a light sand first then a apply a mist coat this should show any problems then sand where needed :)
27th Feb 2018
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MartinB
0 Reviews
Hi. Either way of doing it is correct but applying mist coat first (paint mixed with water and let it dry for a few hours) will make rough/imperfect areas more visible for you to sand them down so I prefer second option. Also keep in mind that after sanding those areas will loose all of the colour and become raw plaster again so all you need to do is paint over them again (paint&water) before applying a proper coat of paint.
My number is 07857083147 if you have any further questions you can text or call. Regards
2nd Jan 2018
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Hi I would sand the worst of it first then mist coat that will give you a general look at what it will look like before the finishing coats go on
24th Feb 2018
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Smoothplasterer
0 Reviews
Just sand it before painting
19th Jan 2018
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Jmc property services
2 Reviews, 100% Positive
It sounds like the plasterer had not brushed the edges in.
Try filling the holes with a filler and then sand them down
You should be ok then
If painting the walls make sure your first coat of paint is watered down also
27th Nov 2017
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TSDecorating renovation specialist
5 Reviews, 100% Positive
you can do it either before or after,doing it before will be easier to sand
26th Feb 2018
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G .R BUILDERS
1 Reviews, 100% Positive
crack filled and paint
5th Apr 2018
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J.Still property maintenance
32 Reviews, 100% Positive
Hi, Yes just smooth with say a 120 grit sandpaper, and prime and paint. You may possibly need some filler just to skim over it first if the plaster is still pitted after rubbing down, powder filler that you mix water with will be best.
8th Jan 2018
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Hi yes light sand with 120grit sandpaper, builder merchants will sort that out for you, is fine and actually recommended. Buy no nonsense plaster paint from screw fix with this paint there is no need for a mist coat and it only takes two coats 👍
25th Feb 2018
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hello you need to sanded down to bring it flas with the wall then you need to clean the wall from dust and after you can put the paint again
3rd Feb 2018
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No you will have to sand first and then fill and then sand again, this is down to bad work by your Plastrer
6th Feb 2018
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Midlands home maintenance
9 Reviews, 100% Positive
I would sand any rough bits you see before you paint, a mist coat usually brings out more defects that was hard to see before, they should be sanded or filled and sanded also, the plasterer should not of left it like this in any case
15th May 2018
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K B Services
3 Reviews, 100% Positive
mist coat first, it will be easier to see where you need to sand.
13th May 2018
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Weaves Interiors & Outdoors
34 Reviews, 94% Positive
I would mist coat you walls or ceiling which will help to identify any imperfections that are really noticeable. Circle them with a pencil fill using a light filler if slight or a deep fill if to big leave and sand. Apply your mist coat to sanded areas and paint to a perfect finish.
30th Jun 2018
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Pipe Dreams Services Ltd
1 Reviews, 100% Positive
Just get some sand paper and rub them down or alternatively get plasterer back and say not happy with finish and can they correct. Probably take them and hour or two to sort out
30th Mar 2019
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