Urgent! corner cracks and hairlines on all two/half walls

Hi, I'm repainting the bedroom to freshen up but before I do that I need to fix the cracks and hairlines caused by seasonal change movement, and I'm a novice in this area. So forgive me if it sounded stupid. I have looked up various solutions to cover the cracks, such as crown moulding, caulking etc. For caulking, which material do I use for the wall - acrylic or silicone? -any recommendations for which product/brand is best for this problem? Also, should fibreglass mesh be used for the cracks??

17 Answers

Maybe you have been demolition something in the house , or the tape at the joints has not been place correctly
18th Oct 2022
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Quality Interior Solutions,Ltd
18 Reviews, 100% Positive
Use only and only painters caulk. Do NoT silicone it because you can’t paint silicone
2nd Oct 2022
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South West Decor
2 Reviews, 100% Positive
You can use easiefill40. This allows you roughly 30 minutes before it starts to set allowing time for you to make sur the cracks are properly sealed.
Although, the cracks appear small you have to rake them out. This will potentially make the larger so best to use a filler you have to make up and have time to play with.
This product will cost from £13-£20
22nd Sep 2022
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Best solution for cracks would be to rake them out to give them some depth and open them up slightly, then you want to put your tape on.. be it crack tape, skrim tape, fibreglass tape etc.. apply your filler on top, thin first coat then bring it out wider on the second coat giving a better blend when sanded and painted. If you were going to go down the caulking route do not use silicone, this will make a barrier for your paint and your paint will not stick to it.
5th Jan 2023
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JJB Builders
2 Reviews, 100% Positive
Try using a drywall joint compound or a flexible polyfilla. I'd personally suggest trying the latter first though as this will more than likely solve your issue.
9th Oct 2022
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Bozgoru
0 Reviews
yes, fiberglass mesh is the best
2nd Dec 2022
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Chop out cracks back to brick/block work. Apply Eml then bond over then plasterer. This will stop surface cracks coming back when movement occurs
31st Jan 2023
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WM plastering
1 Reviews, 100% Positive
The best remedy would be to plasterboard tape (scrim tape) over the cracks and reskim and feather it in.
13th Dec 2022
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Crack are easy enough to repair with scrim and filler
6th Feb 2023
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use fiberglass mesh
28th Apr 2023
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PL Plastering
0 Reviews
Two ways to sort this problem use a Stanley knife make the crack wider and fill with filler or skim the whole wall if cracks start to show again
3rd Jul 2023
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Hi do not use silacone to fill cracks because wen it comes to paint over the paint won’t cover so just filler or cork
5th Aug 2023
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ALM Plastering
0 Reviews
I always use a Stanley knife and score out the cracks to open them up a bit more in v sort of shape as small cracks the filler can’t tend to cling to anything, then give them a coat of easy fill, overfilling the area, then once dry sand back to flush and once painted it will be lovely, stay away from using caulk so fill wall cracks as it can’t be sanded to a nice finish and silicone products can’t be overpainted
21st Aug 2023
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Filler/ caulk should so the trick but it won’t fully fix the problem. If it’s cracked before it will crack again. Don’t use silicone as you don’t be able to paint over it. Decorators caulk
20th Dec 2023
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Paxton
0 Reviews
You can apply mesh tape then skim over
8th Jan 2024
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AW Plastering
0 Reviews
British gypsum do a powered filler called Easyfill
Painter's use it to prep a room before painting
6th Mar 2024
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WPA Plastering
0 Reviews
Make the cracks deeper using a scraper line the cracks with fibre mesh and apply a couple of coats of filler once dry sand and paint
8th Apr 2024
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