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Skimmming over glue spots from polystyrene tiles on ceiling

Discussion in 'Plastering and Rendering' started by MrTeeny, 16 Dec 2007.

  1. MrTeeny

    MrTeeny

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    Anything special I should be doing before just skimming the ceiling ? Luckily they were a bit tight with the glue so the old blobs left behind aren't thick so I guess there's no need for me to try and get all the glue off before skimming. Is it just a case of pva and a coupe of coats of plaster ?

    Thanks
     
  2. roughcaster

    roughcaster

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    MrTeeny,
    PVA and then plaster,just as you said.... I did a kitchen ceiling not long ago where they WEREN'T tight with the glue. I scraped off the loose bits,(nothing too fussy) gave the ceiling a coat of neat pva with a roller as I went, and plastered straight onto it while it was tacky. I use bonding-coat plaster first when skimming and then multi-finish. With bonding plaster,you can put on thicker coat to cover any bad areas,and you also get a better surface to finish on,a bit more work, but each to his own. Just have a good look at your ceiling first before you do anything, just to see if there are any cracks that need to be taped over,or bad/loose areas of plaster. These tiles were often used to cover up cracks/faults, maybe not always,but still worth a good look.

    Roughcaster.
     
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  4. Richard C

    Richard C

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    It may depend on the type of adhesive; I had a bit of a problem where someone had stuck foil on the wall behind a radiator. I removed all the foil but couldn’t get all the adhesive off (it was a contact type); PVA’d as normal but the skim kept bubbling where the bits of adhesive were & took ages to go off, probably because it was impervious to water. I was just using straight Multifinish though & managed to finish it off OK in the end but it was a bit of fiddling; wouldn’t like to have had the same problem with the whole wall, let alone a ceiling!
     
  5. MrTeeny

    MrTeeny

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    Thanks all , I considered using bonding as I've done that before with a ceiling that was covered with textured paint to level it out. To be honest I found the bonding more of a pain than skimming as it goes on thicker and not being a pro it's a real hassle to bond the ceiling.

    The ceilings in good nick as it'd been plasterboarded over the old lathe/plater and whoever did it had done good job, no cracking of joints etd, only for someone else to come along and glue tiles over it :( I guess it must have been fashionable at one time to risk sticking plastic tiles in a kitchen.

    I'll see if I can scrape the old glue off as best as possible and just pva + skim as I'm fine skimming onto a flat surface and luckily the kitchen isn't that big. Thought there may have ben some magic way of removing the glue spots :)
     
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