How to Repair Chipped Limestone

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.

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

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

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.

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

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

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.

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.

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.