Common problems with natural stone countertops include surface damage, etching from acidic substances and staining. When you have damaged or pitted stones, these need to be filled in with a composite or epoxy resin, which is then polished smooth to match the surrounding area. If there is no damage, but your stone has lost its shine, it might just need to be re-polished. This restoration process can help extend the life of your stone & restore its beauty.