MM951

Hey-

I got a question bout POR-15. If I have a piece of rusty metal what I do is sand off all the flaky, loose rust, and slap that stuff on the way the directions say and it turns to a metal compound that wont rust again? Will it help the possible rust problem on my conquest 1/4 panel? I dont expect any rot on it, but I'm afraid. I'm just looking for a temp fix for now...

thanks!
mike

Skip

Absolutely - I've used it on old Jeeps for years - fyi, old Jeeps are made of rust! A favorite among the 914 crowd.

3M also has a similar product, maybe even better, but more $.

MM951

Heh, thanks and it'll be fine?

thanks skip! not the first time you've helped me!

Graufuchs

POR15 is the best stuff in the world....its the best on rusty metal just let it cure for about a full day and itll be rock hard...I used it on my rollbar and on the underside of the 44...-chris

trebor_quitman

What about acid resistance, good for a battery-box?

Zero10

From what I hear it is.
Time for me to shoot in a question about por-15.
I know the 944 panels are galvanized, so they have a zinc coating. Apparantly my coating has come off in several areas, as my car is rusting pretty badly. Does anybody know of a proper way to remove the paint without affecting the galvanized coating?
And finally, does anybody know about the effectiveness of por-15 vs a zinc paint on our body panels?

I don't wish to have my rust return, and for a repaint I would like to strip it to bare metal, but I know if I sand it, I will take the zinc coating off too.

MM951

POR-15 should work for a battery box as its used on examples- and apparnetly its next to impossible to remove as it bonds with the metal to form somethin else...

I was thinking about when I paint my car (Conquest)- if i do- to use hte POR-15 as a primer so it wont rust ya know? Maybe spray the frame too...I say go for it Zero10- it should work fine!

Jay W

I stripped a 924 with liquid paint stripper and a scraper, got as much of the paint off with the scraper and then used steel wool to clean off the rest of the paint residue left over. The steel wool cleaned down to the galvanized coating but didnt take it off. Then I put expoy primer onto the galvanized metal and then the final coat. Paint stayed on it for the 3 years I kept it, probably alot longer.

951Tom

I painted my battery tray with POR15 and it's holding up extremely well. It's worth your time.

jp944

POR 15 is about the only thing holding many vintage VWs together. Or at least the only thing keeping our batteries from falling out onto the freeway.

Zero10

Ok, so if I go easy on it with paint stripper and steel wool, I should not affect the galvanized coating.
I am just not sure whether to use zinc paint, or por-15.
Better yet, I am going to check if por-15 makes a zinc paint! lol.

Jay W, did you just use a paint stripper on your car?
I am wondering, I have had MANY people tell me to use aircraft coating remover to strip the paint, is supposed to work very well, very fast, I just worry about the zinc coating. Has anybody tried this?

Jay W

Forgot to mention that Aircraft remover is the ONLY liquid paint stripper I bother to use. There may be some newer types that work, but when I did this on nearly a daily basis after work 6 years ago, all the other brands of stripper barely worked. The aircraft stuff applied properly makes the paint practically fall off the car. Just follow the directions, lay it on thick and really only brush once in one direction when applying it. If you paint it on like when a person paints a house with many strokes, it loses its strength and wont do crap. My guess is that the stirpper has a wax-like component that serves as the outer coating holding the active (and smelly) ingredients on the paint. Brushing alot breaks this barrier and renders it useless. Have a bucket of water handy because WHEN you get it on your skin you will know in like 20 seconds and you can run over to the bucket to rinse your hands off. And the aircraft stripper didnt harm the zinc coating on the car. Oh and make sure the temperature of the metal you are stripping is over 65 degrees F or whatever the label says. I found it didnt work very well in the cold and just wasted a bunch of stripper.

Zero10

Very helpful Jay W.
However I have a problem now.
Por-15 does not make a zinc based primer. But they have a metal prepper that leaves a zinc coating, and etches the surface...
Perhaps I will use that, and the por 15 rust primer.
I dunno, it's a while off, so I guess I can worry about that part later, but thanks for the info!

88BlueTSiQuest

Don't worry about the body. Proper prep techniques will hold off rust.

I'd only worry about using POR15 in spots that would be unseen, inside body panels, battery trays, etc....

trebor_quitman

I know this was a POR-15 thread, but anyone recomend stripper thats safe for fiber glass? Allot of stuff I read says it is not for use on F.G.