how to wash sand stone ore in india
How to Remove Rust From Sandstone | eHow UK. Jul 14, 2020· Wash your sandstone surface with the sponge dampened with water before drying it with a clean cloth. Dampen the site of the rust stain with distilled water to prepare it for the stain-removing poultice. Lift the poultice with the plastic scraper and remove it from your sandstone ...