How Can I Remove Rust Stains From Concrete. Allow the lemon juice to remain on the concrete for a time before hosing it off. The usual scenario is the customer has spread fertilizer gotten some on the concrete and now they have unsightly spots of rust.
Step 1 - Sweep the Stained Area. Avoid putting metal bottomed chairs or other furniture directly on the concrete. 20062011 A final scrub with a wire brush then rinse with a hose and.
Allow the lemon juice to remain on the concrete for a time before hosing it off.
Another natural option you might try is to cut a lemon in half and rub in on the rust stain. A pressure washer can. Rust stains penetrate deep into the concretes porous surface. Pour distilled white vinegar directly on the rust stain.