Unfortunately, many of the rust stains that I had on my sink and tub didn't go away this easily. For those, this initial round made a dent in the stain, but I still had a ways to go. So, I'd put a ...

A: Oxalic acid is a potent but toxic cleaner that removes rust and stains caused by iron, water and tannic acid. It's available in dry crystal form, to be dissolved in warm water for use.

Of the premixed, ready-to-use rust dissolvers tested here, WD-40 Rust Remover Soak is a strong best stain remover value, checking out for around $24 per gallon.

Q. My concrete sidewalk and driveway have large brown rust stains that I haven’t been able to remove. I tried bleach and a chemical remover to no avail. Can you help?

I tried bleach and a chemical remover to no avail. Can you help? A: Rust stains on concrete seem to respond best to acids of various types. The classic treatment is oxalic acid, which is sold at […] ...

Rust remover. I don’t possess the patience for 10 days of poulticing the patio, so I turned to Iron Out, a plant-safe liquid containing oxalic acid.

Unlike most acid-based rust removers, POR-15–short for Paint Over Rust–not only melts away rust, but preps the metal underneath for paint by lightly etching the metal and leaving behind a zinc ...

Apply just one drop with a cotton swab to the stain. Allow the acid to work for 10 or 15 minutes. ... then you can begin to do the same process to try to remove the other surface rust stains.

And even silicates will be damaged if they are cleaned with a solution that includes hydrofluoric acid, which is commonly found in rust-removers and toilet bowl cleaners, according to the Natural ...

Simply apply lemon juice (or citric acid) to any rust stains on your kettle, leave it for five minutes, then wipe it off. For a polished and gleaming finish, rub your kettle with a bit of olive ...