Rust stains on concrete deck

[geh]

Rust stains from two mushroom heaters and a fire table. These are from Home Depot products I bought during the pandemic and were just recently thrown away. Deck seems to be color tinted stamped concrete (bought the house in 2017, pool was built by original owner around 2010). I re-sealed the deck with Foundation Armor sealant a year before I bought these heaters but it is ready for a new treatment of sealant. Is there any product I can use to remove/ minimize these stains before I re-seal? Or some touch up color-tinted paint or stain?

 

[geh]

Second photo

 

[Texas Splash]

Try some Vitamin C tablets. Take few of them, crush them up into a moist/damp paste, and brush it on those area. See if that does the trick.

 

[geh]

Would naval jelly or some kind of rust treatment possibly work?

 

[Texas Splash]

Would naval jelly or some kind of rust treatment possibly work?

You certainly could try, but we know iron reacts to Vitamin C tablets that are generally cheap and easy to work with. But whatever you have handy, sure.

 

[Bperry]

Would naval jelly or some kind of rust treatment possibly work?

That contains phosphoric acid, itll etch the concrete.

 

[geh]

You certainly could try, but we know iron reacts to Vitamin C tablets that are generally cheap and easy to work with. But whatever you have handy, sure.

That is great. I will try that.