Many fertilizers on the market today contain a small percentage of iron. Fertilizers with iron are commonly used to create a greener, healthier lawn by preventing and correcting yellowing from iron or manganese deficiencies.
We have a product that is specially formulated for removing rust stains on concrete. Singerman Concrete Rust Remover works extremely well at getting rid of rust stains on concrete including those caused by lawn fertilizer. Sold in a 22 oz. powdered concentrate, it can simply be mixed with water to form a gel that will cover approximately 60 square feet of concrete. After standing for approximately 15 minutes it can simply be washed away with a hose. More importantly it will not harm your grass or vegetation. For very large areas we recommend the 60 lb. Concrete Rust Remover Drum.
Get answers to frequently asked questions about our Concrete Rust Remover.