Steel wool and crumpled up tin foil also remove rust in a gentle way.
Grinding rust off metal.
So you ll first want to put on your dust mask and then remove any large chunks or loose bits of rust corrosion with the steel wire hand brush or bench grinder wire wheel if possible.
With or without a machine sanding removes rust from most surfaces and it s the best option if it s important to leave delicate surfaces smooth.
Then drop the item into the vinegar and let it soak anywhere from 10 minutes to 6 hours depending on how rusty it is.
For the smoothest paint job finish sanding with 400 grit wet dry paper.
After it soaks put on a pair of rubber gloves and scrub the metal with steel wool or a stiff bristled brush.
Some are acid based using either muriatic or hydrochloric acid.
Whichever tool you choose always start with the coarsest abrasive to for how to remove rust from metal and pockmarks.
If you want to remove rust from metal marred not only by corrosion but also a great deal of flaking paint there s really no substitute for good old fashioned elbow grease.
A grinding pad also works for thicker layers.
These work well but they re highly toxic and give off lots of fumes.
Bear in mind that this.
Grind the rusted area right down to the shiny metal and work outwards with less pressure into the painted area until you have feather edged the shiny area slightly into the painted parts.
The best option is to attach a wire wheel brush to the grinder and use this to grind off the layer of rust from the metal.
Switch to a 120 grit self adhesive sandpaper disc and go over the freshly rust removed area and smooth out the area and any remaining deeper scratches from the 40 or 80 grid discs.
If grinding and sanding isn t for you there are several chemical rust removers that work well.
The chemical removal method.
Sanding the surface of.
Once the rust is gone switch to a finer grit to smooth out the swirls and grooves caused by the coarse grit.