Dealing with Rust, need expert advice.

[budnate]

Here is the Subject a í72 Buick with two holes in both quarters about 2.5î by 2.5.î
One is showing very slight blistering around the back half of the wheel well.

I plan on cutting out the holes and welding in patches, here are the questions -
I am looking for facts or proven methods.

I have dealt with rust before and it always comes back,
I had a very interesting talk with a fella that supposedly did what I had thought of doing,
Clean rusted area thoroughly and treat with ìQurox- a Polymeric Rust Converterî, I have used this brand in trunks and it seems to work fine and have used it extensively in the Commercial business treating piping in buildings before painting.

He then mixed some kind of stuff similar to JB weld, I forgot what he said he used, anyway he poured it along the inside of the wheel well and the quarter after treating it for rust, it needed to be a little runny to get down in that tight area, he then used a very slight amount of bondo to fix the wheel lip and repainted the car, he swears he owned the car for 8yrs after that and it did not come back, I had thought if you stopped the rust with the proper chemical let it dry then apply something that would prevent oxygen from getting at the area it would have no way to start up again.

Ok pros give me your wisdom.

Oh and donít give me to hard of time for buying a Buick, I couldnít help myself, it is a Grandma car that is really nice except for a cruddy repaint and little bit of rust in the rear, The interior could pass for just rolling off the assembly line yesterday!

Thnx Bud. [img]/ubbthreads/images/graemlins/flag.gif[/img]