How to Seam Granite

Ensure that all the granite edges are smooth and straight and line up properly before you seam granite., Apply masking tape along the edges of the two pieces that you’re seaming., Add tint to clear, knife-grade, two-part epoxy to approximate the...

12 Steps 2 min read Medium

Step-by-Step Guide

  1. Step 1: Ensure that all the granite edges are smooth and straight and line up properly before you seam granite.

    If the seams don’t line up properly or are rough, remedy the problem.

    Don’t grout your granite until you’re happy with the edges and fit.
  2. Step 2: Apply masking tape along the edges of the two pieces that you’re seaming.

    Some epoxies claim that they don’t stick to polished granite, meaning you shouldn’t need tape.

    Check the directions on the epoxy you’re using, but if you’re not sure, go with the tape when you seam granite. , Mix the tint into the epoxy resin before adding the hardener.

    To ensure the best results, check the color by letting a small amount of epoxy dry.

    You can adjust the color accordingly based on the test.

    You can get color kits at any home improvement store.

    When in doubt, go with more subdued colors; you don’t want the seam to be brighter or more colorful than the granite.

    Try mixing a few different shades and seeing which one look the least obtrusive next to your granite. , You will use this to pull the two pieces of granite together as the seam dries.

    Leave room so you can work underneath the turnbuckle attachments. ,,, Don’t over tighten or you’ll pull the suction cups off the granite.

    Depending on your situation, you may also be able to use wedges to push the pieces of granite together. ,,,
  3. Step 3: Add tint to clear

  4. Step 4: knife-grade

  5. Step 5: two-part epoxy to approximate the color of your granite.

  6. Step 6: Attach one or two soft rubber suction cups on either side of the seam you are joining and attach turnbuckles between the suction cups.

  7. Step 7: Mix the hardener into your tinted epoxy.

  8. Step 8: Butter the edges of your granite with your activated epoxy.

  9. Step 9: Tighten the turnbuckles to squeeze the two pieces of granite together.

  10. Step 10: Pull a wet razor blade or putty knife along the edge of the epoxy to remove excess and to create a smooth seam that’s flush with the surface.

  11. Step 11: Wait for the epoxy to dry and remove the tape and suction cups.

  12. Step 12: Polish the countertop and seal for best results.

Detailed Guide

If the seams don’t line up properly or are rough, remedy the problem.

Don’t grout your granite until you’re happy with the edges and fit.

Some epoxies claim that they don’t stick to polished granite, meaning you shouldn’t need tape.

Check the directions on the epoxy you’re using, but if you’re not sure, go with the tape when you seam granite. , Mix the tint into the epoxy resin before adding the hardener.

To ensure the best results, check the color by letting a small amount of epoxy dry.

You can adjust the color accordingly based on the test.

You can get color kits at any home improvement store.

When in doubt, go with more subdued colors; you don’t want the seam to be brighter or more colorful than the granite.

Try mixing a few different shades and seeing which one look the least obtrusive next to your granite. , You will use this to pull the two pieces of granite together as the seam dries.

Leave room so you can work underneath the turnbuckle attachments. ,,, Don’t over tighten or you’ll pull the suction cups off the granite.

Depending on your situation, you may also be able to use wedges to push the pieces of granite together. ,,,

About the Author

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Gary Rivera

Committed to making pet care accessible and understandable for everyone.

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