Granite counters are beautiful, natural, and full of variation. It’s not uncommon to find counters that not only have unusual markings, veining, or coloration, but that also have small pits or fissures as well. For the most part, these small pits and fissures are just natural parts of the stone that don’t detract from the beauty or their function. Occasionally, however, a small pit or fissure does become larger over time, particularly if the stone has sustained a sharp impact or a thermal shock. In this case, a larger pit could be cause for concern, simply because it may compromise the integrity of the stone, as well as become a catching place for dirt and debris. Thankfully, these pits can be filled.
Very large cracks or fissures may be best filled by a professional using a color-matched epoxy, particularly if the crack goes right through the stone. Small pits and fissures, however, can be easily filled at home usually within a few minutes.
The key is to use a light-curing, clear acrylic filler. Light-curing acrylics require no mixing and usually come in pre-packaged syringes so you can easily apply them right to the crack or pit. Because the substance is clear and remains clear even as it dries, the natural color and variation of your stone will be visible through the repair. This means you don’t need to try to match the color or the veining of your stone. The acrylic also dries to a high-gloss finish, which also makes the repair less noticeable, because light simply reflects off of both your granite and the repair. This is different than the way that light may hit an epoxy repair, where the fill is not as reflective as the stone surrounding it.
Light-curing acrylic fill should only be used on horizontal surfaces such as countertops, because it is fluid and does run. Used sparingly, however, it can help extend the life and beauty of your granite counters if a pit or fissure should occur.