A couple of pictures using F9 BARC to remove rust on shingles and siding. The Best Rust Remover on the Planet, fellas! Spray on with a pump sprayer and watch it disappear. The process for shingles is the same for rust on stucco or siding.
We have very hard water in the area I live in Michigan. When I seen F9 demonstrated at SoftWashapooloza I was amazed. I have attached before and after photos of my sidewalk and a rock in my front yard.
-- Edited by John Orrico on Thursday 14th of March 2013 07:55:48 PM