Hi All, I have these walls that have patchy paint all over as in the photo. How do I best prepare the wall for painting: Do I sand all the paint off so it's smooth? Fill in gaps with and sand? Or another option? I'd appreciate any advice? Thanks
Do I need to sand it right back or just feather the edges? Sanding too much takes it back to the plaster. Thanks.
Sand and fill or using a wallpaper stripper or hot air gun to remove the paint has worked for me on many occasions!
So fill in the gaps where the paint has come off and then sand to smooth it out or sand right the way back to the plaster? I tried Hot air gun and it just turned it to glue. Is it worth skimming the walls completely with joint compound to get them completely smooth or is this unneccessary?
Looks like wall wasn’t mist coated before painting as paint is peeling off leaving clean plaster So paint is sitting on surface of plaster instead of the mist coat soaking in and giving good adhesion to further coats I would sand wall with P120, can sand by hand but use a sanding block or hand sander Can use electric sander but dust and possibility of damaging wall Also use a wide blade scraper to remove loose flaky patches Don’t need to go back to plaster but remove all loose material and noticeable paint edges As to filling, just depends on thickness of paint film and if edges of patches are noticeable when you run fingers over walls. Close eyes and give the wall a good rub over with your hands .... what can you feel ? If you can feel edges of patches, then these will show through new emulsion coats - paint doesn’t really hide anything, you can’t just lash it on thicker and hope for the best Matt paint and ‘dead flat’ will help to hide imperfections whilst anything with a sheen will show up these areas Buy a tapping knife, around £8 from SF, great for filling large areas quickly and getting a flat surface So fill where you feel needed after scraping, sanding, dusting down. Either Easi Fill 20 or Toupret Interior, both good fillers and sand down nicely as well Blend in and feather all filler patches , P120 to sand down, and again give to wall a good rub over with closed eyes - you shouldn’t feel any noticeable areas between wall/repairs/filler Dust down then mist coat to seal wall and even out porosity Other function of mist coat is it will highlight any less than perfect repair areas that you’ve missed Can be frustrating but better spotted now than after wall colour has been applied So attack any dodgy areas again, sand/fill/dust down, etc Then spot mist coat these areas Now ready for top coat ...... Skimming complete wall ? Ok if you can do this and get a good finish but don’t want to end up making wall worse