how can i fix these rust spots?

[99grandprixGT 5,000+ posts]

i got a couple rust spots i want to try and fix before it gets worse, and i hate how it looks. so any tips, or write ups? i read a couple off google but any suggestions would be appreciated, ill have pics in a minute.

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[99grandprixGT 5,000+ posts]

 

[dman4486 5,000+ posts]

knock off the loose stuff and hit it with a rust converter. the converter will turn it into a black iron oxide and then all you have to do is paint over it

 

[NDMstang65 10+ year member]

Sand the paint off with a DA, tape your car off really well and get a can of por-15 and put it on the rusty spots with a foam brush.

http://www.por15.com

Get a small tin of that and put it back over the rust..when it is still sticky get a good grade of U-pol catalyzed primer, you must shoot it when the por15 is still a little tacky otherwise you would never get the primer to stick..

After that, sand the whole panel, another coat of primer, knock it back down with 400 and 600 grit and paint back to original color...

 

[99grandprixGT 5,000+ posts]

knock off the loose stuff and hit it with a rust converter. the converter will turn it into a black iron oxide and then all you have to do is paint over it

ya when i went to order my paint color online it had a rust converter i can buy. thanks./

Sand the paint off with a DA, tape your car off really well and get a can of por-15 and put it on the rusty spots with a foam brush.
http://www.por15.com

Get a small tin of that and put it back over the rust..when it is still sticky get a good grade of U-pol catalyzed primer, you must shoot it when the por15 is still a little tacky otherwise you would never get the primer to stick..

After that, sand the whole panel, another coat of primer, knock it back down with 400 and 600 grit and paint back to original color...

alrigh thanks ill look into that stuff.

 

[ShiningBuick 10+ year member]

The one under your gas filler looks like its just waiting to turn into full blown cancer, better keep an eye on it.

 

[pokey_159 10+ year member]

Do not use POR15 on the body, use on the frame and other suspension parts, but for ur minor rust problems knock off the off paint with a DA 80grit and see if the rust is all the way though if not, make sure u clean it out and then use 180grit (DA) and feather edge around ur area (like 5-7inch) and tape prime and wet sand and paint/ blend ur panels...PM me if got any Questions

 

[99grandprixGT 5,000+ posts]

The one under your gas filler looks like its just waiting to turn into full blown cancer, better keep an eye on it.

ya it pisses me off evertime i see it:crap:

 

[cj407]

just sand with a 220 grit sandpaper and use a self etching or regular sandable primer from autozone or advance auto...shouldnt come back...thats all i've done and i do paint on my own cars and my roomate and i do customer's all the time...

 

[pokey_159 10+ year member]

O ya forgot u might need to mud some of it lol...good luck

 

[pokey_159 10+ year member]

just sand with a 220 grit sandpaper and use a self etching or regular sandable primer from autozone or advance auto...shouldnt come back...thats all i've done and i do paint on my own cars and my roomate and i do customer's all the time...

you use the auto zone-paint on customers cars? dude might wanna step up ur game lil bit if ur looking for more then just a 5 week fix

 

[99grandprixGT 5,000+ posts]

Do not use POR15 on the body, use on the frame and other suspension parts, but for ur minor rust problems knock off the off paint with a DA 80grit and see if the rust is all the way though if not, make sure u clean it out and then use 180grit (DA) and feather edge around ur area (like 5-7inch) and tape prime and wet sand and paint/ blend ur panels...PM me if got any Questions

alright thanks. stupid question but what the DA you refer to?

 

[pokey_159 10+ year member]

dual action....so that it doesnt just spin and cut into the body it like has a vibration for it..smell what im steping in?

 

[cj407]

you use the auto zone-paint on customers cars? dude might wanna step up ur game lil bit if ur looking for more then just a 5 week fix

yea 5 week fix using nason or chromobase paints from finishmaster....//content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

 

[hdj20 10+ year member]

i have similar rust spots on my 97 grand prix, glad i didnt have to start my own thread.