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MDF WINDOW BOARDS AND MOISTURE

  • 14-01-2013 10:56pm
    #1
    jimmytom
    Registered Users, Registered Users 2 Posts: 31 ✭


    Dear All,

    I have Primed MDF window boards installed. I have noticed now that my internal plaster is drying out that 3 of the boards have a bubbled effect on their surface like a small swelling. I think that this was caused my excess moisture in room from plaster drying out as windows were not opened. Can i use a fine grade sand paper like say 240 grade and lightly sand back these blemishes to create a smooth finish once more and then reapply a primer and final paint coat or can this be done with MDF. Any advice would be most welcome.

    Kind Regards

    Jimmytom


Comments

  • #2
    isup
    Registered Users, Registered Users 2 Posts: 649 ✭✭✭isup


    i have got a window scraper, and used the balde to skim off anything that is raised, then finely sand and i lightly coated the bare mdf with some pva (polybond) and used filler when needed, it worked ok, but because its mdf theres only so much you can do


  • #3
    woodturner
    Registered Users, Registered Users 2 Posts: 879 ✭✭✭woodturner


    They should have been cut from moisture-resistant MDF. If MDF gets wet at all it will swell a LOT.


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