Marble Stain Remover (Poultice)
Poultice attempt to remove stains from marble and other porous stone surfaces by re-absorbing the penetrant liquid from inside the stone. The entire process takes 48 hours, and even longer for stains deep within the stone. Covers up to 2 sq ft.
DIRECTIONS: Apply mixture to stain (about 1/4 inch thick). Cover with plastic wrap and tape down edges of plastic so that the poultice covered stain is airtight. Allow to stand for 24 hours, then remove tape and plastic, allowing poultice to dry for an additional 24 hours. Remove hardened poultice and wipe the area with a damp sponge.