Any advice on removing stubborn rust stains from stone after removing an old railing?
Asked by Wenseslao Molina 
3 months ago
Last Updated: June 28, 2024
Hey, remember my post about taking down the railing? Quick question – does anyone have tips on getting rid of the stains left on the stone from the old rusty railing? I’m putting in a new one soon, but it won’t completely hide the leftover marks and it’s not a good look.
I haven’t personally tested it out, but I’ve heard that pouring some coke on the rust and letting it sit could do the trick. Not sure if it will stain the stone, but it might get rid of the rust.
Consider trying Vanitrol or Muriatic Acid
Suggested using diluted muriatic acid (pool acid) and making sure to protect the surrounding areas.
I would suggest starting with CLR first. You can find it at most hardware stores, including Home Depot. 👍
I used a product called Rust-out to get rid of rust stains on concrete from an old trailer. I found it at Ace, but I think I’ve also seen it at Home Depot or Lowe’s.
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Randy atley Haha!!!
That was my initial observation 🤷🏼♂️
Randy atley Same here
Randy atley I noticed that too!
Hey there! rinding wheels for concrete grinders can be found in diamond and carbide options.
Hey David! Are you referring to using it on the metal pieces sticking out?
Hey there! An anonymous participant mentioned that you can use it to grind concrete, but recommended smoothing out the bolts first with a regular grinding disk.
You can find a variety of concrete grinding wheels on Amazon, with less success in regular stores
I’ve even tried using an angle grinder with a basic disk in it.
Ive Iron Out a try. It’s likely to remove most of the staining.
Create a paste using Iron Out, which can be found in the laundry aisle.
Before using any of the suggested chemicals, be sure to test a small, inconspicuous spot. Some chemicals may damage certain types of stone.
Head to the hardware store and pick up some CLR to pour over it… then rinse it off. If you can’t remove it, consider fitting a larger base plate to cover it!
I think the same thing. Try CLR (Calcium Rust Lime) remover. I suggest leaving it on for 15-25 minutes before scrubbing with a wire brush and rinsing. You could also consider renting a power washer. Another option is using a muratic acid/water solution (just be very careful to avoid contact with skin, clothes, or inhaling the fumes). Test a small area first.
And great minds think alike.
No matter what you use to clean this area, some level of discoloration will likely persist
Consider getting some rust aid and applying it generously.
Using pool acid can be beneficial for cleaning purposes.
You can purchase muriatic acid from a pool store.
Oh, that’s the technical name for it. It’s also known as hydrochloric acid.
Mix 3 parts water, one part muriatic acid, and 10 parts elbow grease for a powerful cleaning solution.
CLR is great for removing tough stains.