Hey guys the floors on my 1968 GTO are all solid, i just got done grinding off what paint and surface rust was there, my question to you is what have you used to paint the metal on the interior (floors, sides, roof)? Do i want a rust encapsulator?
I've used a bunch of POR15 variants, and a bunch of Eastwood's products to neutralize rust.
I think the POR15 is good if it's all bare metal/rust and you prep it correctly. When I used it, I had a few parts that bubbled up a little. It may have been my surface prep, or that I painted over some previous paint in parts. Also, it's expensive and I couldn't find any deals when I went to buy it.
Eastwood Rust Converter and Rust Encapsulator are my favorite as of now. The encapsulator covers well and acts a lot like normal paint. They're cheaper starting off, and they have killer deals all the time on thier products. Right now it's free shipping.
I then went with some e-dead brush-on deadener to insulate and deaden the sound.