How-To Videos

How to Join Seams in Granite Countertops

By: Danny Lipford

granite countertop

Seams in granite countertops are glued together using two-part epoxy. A special clamping system, known as a seam puller, uses a vacuum pump to attach blocks to each half of the countertop. The two sections are then pulled together with lever operated clamps until the glue sets.


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20 Comments on “How to Join Seams in Granite Countertops”

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  • Official Comment:

    Thomas Boni Says:
    August 5th, 2018 at 4:05 pm

    Hi, Lee,
    Thanks for reading! We’re glad to hear you enjoyed this project.
    We are always working on projects, and receive tons of similar requests for plans, records and PDFs; unfortunately, we do not have individual documents available for distribution.
    Take care,

  • Lee Says:
    August 4th, 2018 at 5:12 am

    I want to read your historical data proving sealant joints quality you have been used for a long time about 10 yeas. We are going to use silicone sealant for joints of big granite building. Please send me this data proving your granite sealant for joints, for example building picture, video and PDF….. Thank you in advance.

  • Official Comment:

    Thomas Boni Says:
    July 7th, 2018 at 11:50 pm

    Hi, Suzanne,

    Danny says, “It is very common to seam granite countertops at the sink. It is less obvious, inconspicuous and it hides the seam better because it’s simply shorter. It rarely proves problematic. That’s what I have at my house!

    Good luck!”

  • Suzanne Says:
    March 13th, 2018 at 7:05 am

    I am having a granite countertop installed and it has to be pieced. The installer wants the seam to be in the middle of the sink opening. That seems problematic to me. Where is the best place for a seam on a long countertop?

  • stan Says:
    April 19th, 2017 at 11:11 am

    want to build a small bathroom vanity for a vessel round sink .6″ hx18″x20″ will epoxy hold this together it will be wall mounted,

  • Trevor Says:
    August 29th, 2012 at 8:43 am

    I’m having the same problem as Jeanie, but her question was not answered, please help:

    “water is leaking at the seams of our granite countertop in our kitchen .what is the best product to repair this problem? thamk you!”

    In my case, I can see that the seam is cracked. How do I repair this problem? Thanks,

  • John Hayward Says:
    May 21st, 2012 at 12:09 pm

    I am having trouble locating a place which rents seam setter/seam puller.
    I’ve checked several rental places and one recommended a tile store – no luck.

    Chicago area or Benton Harbor/Kalamazoo MI area
    Any pointers would be appreciated.

  • KC Says:
    January 16th, 2012 at 10:21 am

    I had a granite countertop install that went wrong & had to be removed. The installer separated the seam by heating the seam from underneath using a propane torch, this basically melted the epoxy in the seam until it dripped like wax & any remaining epoxy was ground off before reinstallation of the granite. FYI


  • Liz Bradt Says:
    December 22nd, 2011 at 8:27 am

    How can I clean over build of epoxy from granite counter after it has dried for a spell.

  • Official Comment:

    Ben Erickson Says:
    December 12th, 2011 at 9:16 pm

    Hi Jamie,
    I don’t know of any solvent that dissolves cured epoxy, but I’ve heard you can heat granite with a heat gun then apply outward pressure with vacuum clamps or by driving wood shims in the joint to separate them, but I haven’t tried it myself.

  • Jamie Says:
    December 12th, 2011 at 3:12 pm

    Jamie says
    will I ever get an answer to my question from anyone?

  • Jennel Says:
    December 11th, 2011 at 10:09 pm

    I want to know the specific name of the epoxy that is used to join the granite seams. We are redoing our kitchen and working with a very tight budget so we are going to do the installations ourself.

  • Jamie Says:
    October 21st, 2011 at 3:03 pm

    what is the best way to break a seamed joint on a granite counter top with out damaging as I want to reuse countertops but reconfigure them?

  • Official Comment:

    Ben Erickson Says:
    June 30th, 2011 at 9:02 am

    Hi Kathleen,
    I don’t see why you couldn’t join the granite together using standard two-part epoxy glue, if you clamped it securely while it dried, though I have never tried it. You could probably add a bit of powdered universal colorant to the glue to make the seam less noticeable. Good luck with your project!

  • kathleen orloff Says:
    June 22nd, 2011 at 1:21 pm

    I am looking for an inexpensive way to get a granite look. I have found tiles 18 x 31 with polished edges. Can these be seamed by using the 2 part epoxy or do I have to use grout? I am trying to make it less noticeable.

  • Gregg Kennedy Says:
    January 15th, 2011 at 10:18 pm

    I am relocating a kitchen with granite tops. Is there a way to separate the seams to move the tops? Thanks

  • jeanie Says:
    December 22nd, 2010 at 11:41 am

    water is leaking at the seams of our granite countertop in our kitchen .what is the best product to repair this problem? thamk you!

  • AL Says:
    February 27th, 2010 at 11:48 am

    Can you use some of the Silestone(ground up)in the epoxy to hide the seems in the counter tops?

  • Tom Says:
    July 15th, 2009 at 3:17 pm

    I have no alternative but to replace kitchen base cabinets and want to salvage the granite countertops. What is best way to remove granite tops that are seamed together so as not to break granite.

  • countertop maker Says:
    June 11th, 2009 at 9:05 am

    That tool is one of our favorites. Nothing gets seams tighter. Thanks Danny

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How to Join Seams in Granite Countertops