Because bluestone is such a durable and attractive stone, many homeowners like to use it in their kitchen countertops and even on their driveways. The downside of using bluestone pavers in these sorts of areas, however, is that oil that is spilt on them (either cooking or motor) is known to quickly cause a stain that is near impossible to remove. Follow these instructions to clean your pavers without causing them any damage:
Step 1: Blot away any remaining puddles of oil on the bluestone using an old towel. Make sure that you do not rub, as this will spread the oil out and cause further staining.
Step 2: Fill a bucket with about a litre of clean water and add in about two teaspoons of household ammonia. Mix the solution together using an old stick.
Step 3: Take a soft scrubbing brush that you have dipped into the ammonia solution and use it to scrub at the oil stains on your bluestone pavers. Once you’re finished, rinse the pavers with clean water and leave to dry.
Step 4: If the oil stain is still visible, pour some mineral spirits or some acetone onto the bluestone and leave to sit for a minute. Then, take the scrubbing brush and give the whole area a good scrub. Rinse with clean water and leave to dry.
If the oil stain that you are trying to remove is on bluestone pavers that are inside the home, you need to make sure that you open all windows and doors in the area to make sure that the room is well ventilated. You should also ensure that you wear rubber gloves when cleaning bluestone, as this will protect you from harmful chemicals.