Plasterboard Joints Showing up after Painting

Hi. This i more common than you think. Tape and jointed plaster board finish is ok.....but only if it is done correctly. Often its not. But 'appears' to look ok because its finished with ' builders paint'. Effectively this is contract matt, cheap and disguises imperfections partly due to it being completely matt ( dull) If youve painted with a retail emulsion even the ones that are labelled 'matt' will if they are 'vinyl matt' have a degree of sheen level. This means that more light is reflected than before you painted, from the surfaces of your walls So.... You can fill these areas. The technique is called surfacing. Using a wide blade artex caulking tool a thin layer or filler is applied and sanded smooth. Not any filler however. Either easifill or toupret. I see toupret now market ready mixed tubs of filler and the tool to do this. Albeit its mainly targeted at problematic walls in older properties it would be suitable for this. The areas you have filled will now be more porous than the rest of the walls so will need priming and the whole area re-painted a few times. If these 'lines' you can see are apparent when you look 'down' the wall as opposed to looking at it directly, then if this is a wall that was 'dot and dabbed' then what you are seeing is that the joints are proud of the rest of the wall. This again is down to poor building skills, the boards have taked a convex shape and the proud joints are virtually immpossible to eliminate

It all depends on how much the tape is showing. In most cases you can cut the tape out and apply filler(easy fill recommended), once dried smooth sanding, will usually use between 120 and 160 grade abresive paper, for fien finish. After sanding, make sure to wipe and clean surface free from dust. As this is purous it will need priming before painting.

Use easy fill sand clean water down paint apply 2 coats then when going to paint go to Brewers paint shop and by Dulux TRADE paint a lot better quality than you get from retail shops if all fails get a plasterer to come and skim it many thanks Barrie Randell

Easy fill the joints, sand, touch up, then recoat the walls in the finish required, easy as that