I did a quick sketch but the bold black areas are where my holes are and there is a crack in the back, was wondering whats the best way and the most cost effictive way to do a floor board, without sheetmetal and rivets, also cannot get a welder in the garage only 110 on base. Is there a kit? I have looked for floorboard repair kits online and they come up with something for motorcycles. Also what is the sealant they put on where can I buy that from?
If this is not structural, I guess it might hold for a while. A few years ago, POR 15 had some sort of patch kit to go over rusty floors/trunks to go along with their rust paint. I do not know if they still make the kit.
First off 110 is plenty for running a welder to do floor boards. I use a big long extension cord to reach out side on my 110 outlet and use a small portable welder with it. I've welded up to 70 amps without blowing a circuit breaker. You could go old school and braze it. The brazing rod with flux already on it is easier to use for a novice. Map gas should be able to heat up the floor enough to braze small cracks although you should really find out why it cracked in the first place. An oxy-acetylene torch would be better for brazing.
Eastwood has an epoxy kit that they claim is as strong as welding. http://www.eastwood.com/ew-no-weld-panel-repair-kit.html
"Best" and "cheap" is an oxymoron. The best way is to replace the floors with sheetmetal from PlyDo, which involves welding. The cheapest way is....well, I dont wanna go there. Unfortunately there is not much in between. If you're REALLY stuck, make up some sheetmetal patches and pop rivet them in (shudder.... I cant believe I'm saying that). That'll keep the wet out for a while, but it's neither safe nor permanent.
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