How to Repair Chipped Limestone

Written by lane cummings
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How to Repair Chipped Limestone
Limestone gives your home a more rugged appearance. (Hemera Technologies/AbleStock.com/Getty Images)

Using stone fixtures inside homes is becoming more and more popular as quartz and granite pop up as countertops or fireplace mantles. If you'd like a more rustic, edgier look, consider using limestone, which has a remarkably coarse texture with a varied appearance. Like marble, quartz and granite, limestone comes in a range of colours--from hues of cream to shades of red, green, grey and blue. While limestone is a sturdy rock, it can chip. Fortunately, chips are simple to repair.

Skill level:
Moderately Easy

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Things you need

  • Paper
  • Pencil
  • Measuring tape
  • Limestone epoxy
  • Paper plate
  • Paintbrush
  • Limestone patch kit

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Instructions

    For Large Chips

  1. 1

    Place a piece of paper over the chip and outline the shape of the chip onto the paper, using the pencil.

  2. 2

    Remove the paper and estimate the depth of the chip. Use a measuring tape for large chips.

  3. 3

    Visit a limestone company and ask for a replacement piece to fit the shape of your sketch at a designated thickness. A worker will cut the limestone to match your tracing. Alternatively, you can purchase a small piece of limestone and cut it down to size at home on a flat surface, using a wet circular saw and protective eyewear as cutting limestone will create a lot of dust. This is ideal for small chips.

  4. 4

    Squeeze out a nickel-sized portion of limestone epoxy onto a paper plate. Dip your brush into it and dab onto the chipped limestone.

  5. 5

    Press the replacement chip onto the chipped limestone and hold it in place for two minutes. Allow it to set overnight.

    Limestone Chip Repair Kit

  1. 1

    Mix a quarter-sized amount of the stone patch gel on a piece of cardboard, using a wooden tongue depressor. Select the colour that best matches your limestone.

  2. 2

    Shake in a tiny amount of a powdered colour such as cream, grey or charcoal to best match the nuances of the limestone. Mix in the colour well with the tongue depressor.

  3. 3

    Apply the gel to the chipped limestone with the tongue depressor. Run a razorblade over it to smooth it out. Allow the gel to harden for 24 hours, then run a pumice stone over it to smooth it out.

Tips and warnings

  • A limestone patch kit comes with a patch gel, paint, scrap cardboard, tongue depressor and pumice stone.

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