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Doyle, I've used the POR-15 process for several tanks, large and small. It's an air cure epoxy sealer that is used after the tank has been thoroughly cleaned and prepared. Buy the whole kit from POR-15 and follow the instructions closely and you will have a great job. The kit starts with a good detergent mixed with hot water to clean any old fuel residue. Cover or plug the openings and slosh around many times over a period of time (I think they recommend 1/2 hour, but follow THEIR instructions, not my faulty memory). After rinsing, add their rust kill treatment and slosh around as instructed, then rinse with water. Then the tank must be completely dried before adding the sealer. I set my tank in the sun for a couple of days, or you can use the warm air discharge from a vacuum cleaner to help - but the inside must be BONE DRY. Then add the sealer and slosh around until all surfaces are covered and drain out excess. It must sit and dry for at least 2 or 3 days before use - I usually wait a week if I can. Like any good job, the proper preparation is 98% of the job. Follow their instructions and it will work for you. You can order the product directly from them, local distributors if available, or check your local auto paint store - that's where I get mine. Good luck on the job. It's pretty much a no brainer, just do it right. David
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