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  • Seal cracks in concrete slab?

     Joe updated 2 months, 1 week ago 2 Members · 2 Posts
  • Matt Lavigne

    Member
    April 8, 2021 at 10:11 am

    Our house was built in 1975 and has, of course, settled a little bit. There are several cracks in the slab. They are very thin and there’s no big displacement. Should I seal the cracks before laying the floor. My planks call for a 6mil poly sheet and I am also using the optional underlayment pad made by the same manufacturer (Corelux). Any recommendations as to which sealant (e.g. Bluestar, Quikcrete, Crackweld)? Thanx!

  • Joe

    Administrator
    April 8, 2021 at 3:10 pm

    Yes, if they are open an 1\8 inch or more and you can use henry’s 549 feather finish. Anything less you will be good to go.

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