Hi Lupe. I'm Cindy. A thick paste made with lemon juice mixed with salt will remove rust.
What is the rust on and how bad?
You can scrape of loose rust. Then spray with Rustolem that prohibits rust. You can also sand if metal thick enough. What is the rust on?
You don’t say what it’s on if it’s on Crome use brasso it cleans rust great it’s a cream
My rust is on marble - have tried several things 😢