We have a lot of customers coming instore for a suitable gravestone cleaner. Without a doubt the best cleaner we have found is the HG Headstone Cleaning Spray.
HG headstone cleaning spray effortlessly and thoroughly removes deposits, dirt and stains caused by weather or bird droppings. The product is suitable for marble, bluestone and other natural-stone headstones, plaster and walls. Half a litre is sufficient for approximately 3m2.
Spray the dirty marks with HG headstone cleaning spray from a distance of 5cm. Leave the product to absorb for approximately 25 minutes. Remove any remaining dirt with a cloth or a brush, and rinse the surface with plenty of water. Repeat the treatment after 30 minutes for stubborn stains.