I would recommend visiting their website. They have quite a bit of information on different levels of repair possible, and the steps required for each. It's quite impressive just how much can be salvaged. If you have questions, don't hesitate contacting them. I did before I purchased, and the the guy I spoke with (I cant remember his name) was very friendly, helpful, and showed no pressure to purchase. When I mentioned Airstream, he was not surprised and seemed quite familiar with Rot Doctor's use in them.
Eric, Stacey, Easton, Annabelle, Gretzky (boxer), & George Bailey (basset hound)
1975 Tradewind - Family owned and operated since 1975
2005 Chevy Tahoe Z71