How to completely remove rust from a rust spot?

[ProV1]

I want to remove all of the surface rust before I apply primer and basecoat on my trunklid. Will sanding alone remove all of the rust? Or do I need to apply some sort of chemical before applying primer on it? thanks..!

[ProV1]

for example, i`ve heard i can rub potato skins dipped in baking soda, or reynolds aluminum foil dipped in coke will remove any traces of rust that sanding won`t get to???? is this a joke??

[BigJimZ28]

a grinder has always worked for me

[BobD]

You are going to need to grind it out. The BEST way to completely get rid of rust is to cut it out and weld a patch in. But a grinder to get down in the metal and some body filler will do the trick for now.

[Scott P]

Check out Eastwood Company (eastwoodco.com I tink) for some of their rust conversion and removal products. They have some nice liquids that should work well enough for what you are looking for.

[Grimm]

What he said. They sell Rust Encapsulator that will keep it from rusting again. I read a test that said it worked a little better and was more user friendly than POR-15.

[E-Jag]

The best rust removal product I`ve ever used is Naval Jelly. Put it on, agitate it a little, let it sit for a few minutes and rinse off. Rust is gone, guaranteed, but it won`t do a thing for whatever is under it.



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E-Jag

[ProV1]

thanks guys. grinding is a good idea, i`ll also try some diluted phosphoric acid. this is the stuff in naval jelly, but i`ll use the pure acid.. carefully of course!!