How to hide fine hairline crack re appearing after painting

hi there Robert! those cracks are quite annoying ey. (1)-so what i usually do is cover them with mesh tape and apply joint cement, not the ususal polifila as its quite weak and dos not work well with movements; joint cement is lots harder so it holds better. apply thin layers, initially to cove the tape and then to smoth up the edges. (2)-other way is: apply some flexible filler (solvent based) apply a small ammount an the cracks and rubb it in with your finger and use a cloth damp in solvent to remove the excess. make sure its all clean, wait 24 hours to allow it to dry propperly and happy days after that as it should be the end of it. obs: the tape is very good but depending on the extention of the cracks and how mush they move, the flexible filler is by far the best option. good luck alex

Simply filling over the crack isn't the answer here. You need to get a scraper or another sharp edged tool and rake the crack out, give it a good clean out with a dust brush and then refill you may need to sand the first fill down and apply a second fill depending on how deep you rake it out then it will be ready for the emulsion. Hope this helps! Kind regards Joe Perrin.

Hi there try racking out the crack all the loose bits refil and paint see how you get on with that .

check that you have used a flexible compound when filling due to general movement of the home. Always over fill allow to dry fully before sanding miss coat and repaint wall to remove the repair area.

Hi,chroma response is nearest to solving this one,I'd rake out and pva areas to be filled ,base fill, fiba-tape over cracks,easy fill 20 or 45 minute ,finish using joint cement or lightweight joint cement,lightweight preferable,each coat should be spread out further than the previous coat,this will avoid repairs being noticeable and raised.Then depending on previous application method of paint blend repairs by building paint on repairs,this will take flashing and visibility out of repaired areas,read feedback on Derek 8 July 2014. After remedials from house builder failed on numerous occasions ,this method worked and never fails,hope this covers you're request,regards,W .J.D.

Hi Robert If you have opened the crack with the edge of your scraper just to make it more visible . Mix your filler and make sure it goes into the crack and not just over it . When that dries , sand it down and then apply another layer of filler over the top . Sand that down when dry and then seal with a mist coat of emulsion ( a thinned coat ) When filling please make sure you dont end up with a mountain effect ,, that is a large bunch of filler at one side and completely missed the area to be filled Forget using mesh tape -- not needed Regards Wullie