Pennsylvania Blue Mortar Removal

Discussion in 'Hardscaping' started by EagleLandscape, Sep 16, 2008.

  1. EagleLandscape

    EagleLandscape LawnSite Platinum Member
    Male, from Garland, Texas
    Posts: 4,347

    Hey guys,

    I subbed out a job to the mason that did the stonework on my house to lay a penn blue flagstone sidewalk for a customer we did a landscape project on. He left a little mortar on the face of the stones.

    Whats the best way to remove this? I've got dwf mondo surrounding the stones, so I'm hesitant to use any chemicals.

    Wire brush maybe? But that will probably scratch the face too much.

    thanks,
     
  2. Summit L & D

    Summit L & D LawnSite Senior Member
    Posts: 269

    If the chunks are big enough to flake off, you might try a putty knife (maybe a plastic one would scratch less). Otherwise, it's most likely going to involve chemicals...like muratic acid.

    I just remembered...a pressure washer might do the trick.
     
  3. EagleLandscape

    EagleLandscape LawnSite Platinum Member
    Male, from Garland, Texas
    Posts: 4,347

    k, ill give pressure washer a try, thx.
     
  4. tthomass

    tthomass LawnSite Gold Member
    from N. VA
    Posts: 3,497

    Careful with a pressure washer......you may see just how well he did or did not do his joints.

    Take a trowel, scrape/pop it off and finish with acid. Tell your guy next time to use a sponge. You can do the most beautiful and perfect job laying/setting stone but if your joints look like crap, it all looks like crap.
     
  5. shild

    shild LawnSite Member
    Posts: 9

    I have the same problem--what did you end up doing that worked? Thanks!
     
  6. burnthecouch

    burnthecouch LawnSite Member
    Posts: 19

  7. EagleLandscape

    EagleLandscape LawnSite Platinum Member
    Male, from Garland, Texas
    Posts: 4,347

    i had my mason use acid.

    problem solved.
     
  8. bullet4547

    bullet4547 LawnSite Member
    Posts: 8

    Been setting flagstone for years.I set the stone,then come back and fill the joints with a grout bag,then joint and sponge every thing..makes for a clean job and seals all the joints.Never have to acid wash.Mason for 41 years...Bullet
     

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