How do I remove rust stains from concrete? Simple dish soap should do the trick. After the surface is clean, start with pure lemon juice — not a diluted version, as the stronger the acid the better it will remove the stain. Once you’ve soaked the stain thoroughly with the lemon juice, let it sit. This is key.
What is the best concrete rust remover? If you need to get rid of rust from concrete, your best bet is to use some WD-40 Multi-Use Product, and some elbow grease. WD-40 is specially formulated to be a penetrant, so when you spray it on a rusted surface, it gets to work right away by getting under the rust.
Will CLR remove rust stains from concrete? The main ingredients in CLR, which include water, lactic acid, and gluconic acid, are effective at removing rust from concrete. And CLR is somewhat safer than the harsher chemicals we’ll get into below as it does not contain harmful phosphates.
Why does my concrete have rust stains? Rust stains appear on concrete due to deposits of iron and water. When it rains, iron from soft rocks within the concrete, fertilizers or metal can all be the cause of rust spots. The good news is that rust stains can be removed with cleaners and prevented with a sealant.