Tom, here's what I used. Relatively cheap, seems to work good, no odor. It's been in my car for over a year, I haven't put in carpets or upholstery yet and like I said no odor. I used it on the floor and all other panels (inside doors, trunk, roof, cowl) with no failures. The only extra step I did, was I sprayed contact cement on the roof and vertical panels just to give me piece of mind. Also, I plan on using jute padding under the carpet.Anyway, I don't know how well the expensive stuff works, but I like this stuff just fine. http://www.lowes.com/pd_154017-81326-PS625_0__?productId=1018733&Ntt=
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