85berlinetta2.8

well i invesigated some of the rust i found on my car, and im just doing as much work to it as i can... seeing how i have nothing but time on my hands being off work to go to school this summer.

a little bored... but anyway

took out the battery a bit ago.. that one bolt holding it in was a buggar.

this is what i found





and the evap canister im unable to remove at the moment... its tight down there to the 2 bolts. i dont have a small extension long enough yet'




so im about to sand off a bit of the rust directly under where the battery sits, then brush on rust inhibiting primer and then painting on some fiberglass liquid incase the metal is too thin... then brushing on body colour.
the underside of this battery tray is covered in rubberizer from when i udercoated the car a few months back. ill leave it for now...

ill try the evap canister later.

Petes 84Z28

That's a perfect spot to use POR-15.

JamesC

iTrader: (5)

Pete's right: Por-15 all the way.

JamesC

85berlinetta2.8

can i get that in canada at any retail stores?

85berlinetta2.8

ah i might get some of this

deadbird

Por-15 is only a band-aid fix to the problem.
Por-15 does not get rid of rust, it mearly encapsulates it (or seals it off). Even on their website, the say you should treat rust prior to using Por-15.
You can chemically or physically remove the rust.
Chemically, muratic acid (commercially available) or using a phosphoric acid (such as Oxisolve from www.eastwoodcompany.com). After either, you will want to use a wash of TSP or similar product (to neutralize the acid and wash any contaminates away). Then, use a cold galv compound (like ZRC available at most welders supply stores or galvaprime) to restore the original zinc finish on the metal and then, use your choice of sealer... Por-15, epoxy primer, etc. Then topcote with a touchup paint (Duplicolor, plasticote, etc) for cosmetic purposes.
Physical.. sand blast, wire wheel or whatever means to remove all the rust possible. Then, follow with the cold galv and sealer.

Just masking the problem is asking for more trouble down the road. If you just want to hide the rust and pretend it's not there.. you could just use something like Brewers cote... it's a tar mix patch for roofing... it will hide the rust just the same as Por-15 for much less $$. I've seen the cote use at a rust patch/sealer quite a few times... band-aid fix.

After all your labor, invest in a sealed battery or a Optima/Champion to prevent future problem such as your current.

85berlinetta2.8

i think the rust was caused by sant salt and moisture having a place to sit when the car was driven in the snow

jaredjames

my battery tray is the same way but not AS bad. im gonna sandblast mine once i get an air compressor, then im just gonna selfetch it and paint it, and ill call that good. i would conversion coat it except that stuff has to be rinsed w/ water and ya know, ( bare metal, water, uh ). and deadbird it is nice to see someone else who knows what in the hell they're talkin bout. im an auto body/ paint and refinsh student for 1 1/2 yrs now and damn alot of ppl dont know a friggin thing when they think they do.