So I want to hit the top and bottom of the floor of the Corvair with POR 15 and now that I see how expensive it is, my first question would be: how far does a can go? They have them in pints, quarts, and gallons.
My next question is, is there an alternative? My dad told me about something Eastwood has in a spray can with a rust inhibitor.
Any info would be appreciated. 
Chassis Saver is the same thing for about 25% less.
The Eastwood stuff works pretty well, my neighbor shot the bottom of his TV tower with it six years ago and the rust hasn't restarted. It was bad enough to need repaired in my opinion....
I just used the Eastwood stuff on the small parts of my Barracuda that were rusty and it seemed to work well. I'm in Texas so it's a little tough to say what the long term fix will look like but first impressions were really positive.
Eastwood used to sell Corroless paint, which was awesome.
We need to have "stickies" so we can stop addressing this topic five times each month.
Rustbullet or Eastwood's stuff. I will say that Rustbullet is super super thick, get 2-3 times the brushes (or better yet sponge brushes) then you think that you'll need. After a few feet you'll be smearing it on more then brushing it on.
In reply to tuna55:
or a body work and paint section of the forum
Maybe just an FAQ sticky. Then again that requires people to constantly update the thing unless it never gets out of date, but inevitably they do.
Well, anyway, I use Chassis Saver, which works great, but I've never used POR15 to compare against.
Used both Coroless and POR 15, had similar results from both. The Jensen's floors are Coroless, after ~15 years no rust. POR15 does make probably the world's best fuel tank sealer, it's the only one that's E15 proof, AFAIK.
I’ve used POR15 in the past and recently tried Rust Bullet and have had better luck. Its thick, less prep work and chemicals needed, and can be sanded or top coated easily.
What would we talk about if everything just ended up in a FAQ? I don't like forums where everyone's first response is, "Use the search function!"
tuna55 wrote: We need to have "stickies" so we can stop addressing this topic five times each month.
Well if it's being posted about that much why haven't I seen a thread about it in the last 5 pages? 
It's on page 6, duh!
JK
POR does go a long way, you don't have to put much on and it goes on very nice. I have also tried Rust Bullet, but I really like the look of POR (looks exactly like black glossy powder coating). If you are going to paint over it (unlikely) rust bullet may be a better option.
I have used it on brackets in the engine compartment and it looks exactly like the powder coated shrouding (Corvair thing). I have never tried it on shrouding, but I suspect it would work great (clearly they would need to be very carefully cleaned, sand blasting is ideal)
BTW - Do NOT buy a gallon of POR-15. If you do buy a quart (which I am guessing would do the floors under an over) make sure you take what is left and put it in the smallest can you can find (least amount of air). POR will harden in the can (top down) if there is any amount of air in it.
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