Will WD 40 remove rust stains from concrete? 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.
Does vinegar remove rust from concrete? White vinegar and a little scrubbing with a brush is a very effective, eco-friendly way to remove rust stains from concrete—even those that are decades old. Pour the white vinegar directly onto the stain, allow the liquid to penetrate the area for 20 minutes, and scrub with a stiff-bristled brush.
Can you pressure wash rust off concrete? Conclusion. It’s not enough to pressure wash a rust stain from a concrete surface. Rust stains penetrate deep into the concrete’s porous surface. You need to apply a concrete stain remover for the best results and then rinse it off with a pressure washer.
Will CLR remove rust 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.