I did use Dinitrol on my car. its waxy stuff that newer dries completly. i have owned this car 3 years and so far its good nice black undercoat that dont get chiped if stone hits.
Dinitrol AV25 and AV100D these are great choices, one is a liquidy spray type, the other looks and has the consistency of peanut butter.
Corban in the spray form is great too
i work with aircraft, and corrosion is obviously a bad thing to have in these. the products Peelo57 and I mentioned are great to stop this problem we use these products at my work to disperse moisture and keep a barrier between it and the painted metal frames and skins of the aircraft. the worst places for corrosion on these are the frames under the lavatory, and the frames under the galleys.
i plan on using Corban spray inside the drain holes of all the framerails after i paint the undercarriage. i also plan on using some sort of spray in bedliner on the carpet side of the floorpan. floor pans rot from the inside out. soggy carpets from leaky windows that never dry out is what causes most of this damage.
