We received hundreds of phone calls and requests in 2014 for help to remove oil stains and dark stains around faucets and soap dispensers on granite and marble countertops.
Many people look for solutions on the Internet. Some of the “solutions” are poultices made with bread flour and hydrogen peroxide, among many other concoctions. Why rely on urban myths and dubious home remedies when chemists and stone professionals from Europe have formulated professional products made specifically for natural stone?
HMK Stone Care from Germany has developed R52 Stain Removing Poultice. This professional grade poultice has proven successful for more than a decade.
Directions: (my 35 years of experience is slightly different than manufacturer directions)
For best results, pre-treat stains with a solution of R55 and water (1:4) pouring solution over stain and allowing to dwell on stain for 15-20 minutes. Next, rinse well with warm water. Blot dry with a paper towel. Immediately apply R52 Poultice to stain, maintaining a thickness of 1/4″-3/8″. Cover area with plastic wrap, and tape down edges of plastic with masking tape. Allow poultice to dry for 48 hours. (save R55 solution for washing poultice later)
Check to make sure poultice is dry before removing. If dry, scrape off with a plastic scraper or spatula. Wash area thoroughly with reserved R55 solution, allowing to dwell on granite for 10 minutes. Rinse VERY well with warm water. Allow to dry completely and observe to see if stain has been completely removed. Repeat applications may be needed if stains are deeply embedded.
While nearly all common stains are effectively removed (or reduced), there are some stains that cannot be removed. We received a call from a frantic homeowner who spilled fountain pen ink on white granite and tried numerous “remedies” before contacting us. Some home remedies can actually cause more damage by causing stains to “set”. We suggested using R54, R52, and R55 and they were able to diminish the stain.
For questions about removing specific stains, email firstname.lastname@example.org or call us during business hours (Mountain Time)