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Paint cracking on decorator's caulk

  • 16-10-2018 3:21pm
    #1
    az2wp0sye65487
    Closed Accounts Posts: 1,931 ✭✭✭


    I painted a room over the weekend.

    I used decorator's caulk on some areas and let it dry overnight. When I painted over it the next day, the areas that had the caulk began to crack. The paint wasn't peeling off - but it finished in a kind of tortoise-shell pattern cracking.

    I used a white primer undercoat; and this is the one that cracked. When I painted over it with the final colour, it seems to have covered up the cracking.

    I'm wondering what's caused this.... Is the paint I used incompatible with the caulk?


Comments

  • #2
    dok_golf
    Registered Users, Registered Users 2 Posts: 1,090 ✭✭✭dok_golf


    Caulk wasn't fully dry and the paint on top split as the caulk underneath contracted


  • #3
    az2wp0sye65487
    Closed Accounts Posts: 1,931 ✭✭✭az2wp0sye65487


    dok_golf wrote: »
    Caulk wasn't fully dry and the paint on top split as the caulk underneath contracted

    How long should it take to dry? It wasn't very thick and I had sanded parts of it


  • #4
    dok_golf
    Registered Users, Registered Users 2 Posts: 1,090 ✭✭✭dok_golf


    Depends on the environment its in i.e. humidity levels etc. Some of them are over paintable in 3 or 4 hours, some take min of 24 hrs.


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