by BillB1210 » Fri Jun 19, 2015 8:09 pm
My experience with POR-15 has been good. But remember, it encapsulates rust. That means in real terms, that the rust is still there and growing - like a cancer. It is in the metal. Growth can be retarded, but will not stop.
As Clyde mentioned, sandblasting is the key. If you can somehow sandblast a piece of metal on a day without too much humidity, coat it quickly, you might be able to defeat 95% of the rust. Problem is that even with the best pressure sandblasters, you can't really eradicate 100% of the rust. As soon as the blaster turns off, the metal begins to oxidize again. Make sure you drain the compressor of water, if it is humid, you are taking in water again and the surface will corrode.
POR-15 is probably the best you can buy(I haven't tried Eastwoods). It does a great job, seals the work and will usually give you years - if you don't drive in salt again. Otherwise, don't waste your time and money. Salt is the enemy. It is pervasive, gets into everything and starts it's destruction.
If you like cars, move from the "salt states". Move to the Pacific Northwest, South below I10, Oklahoma, Texas or the Southwest.
That's what I'm going to do!
Bill
1980 Monza 2+2 Purchased new in April 1980
ZZ2 GM Crate Engine 345 HP 350 CID 5-speed T5