I found the receipt!
Contact info:
dba Consumers Petroluem Co.
13507 Auburn
Detroit MI 48223
313-272-3800
(it's near Schaefer and Schoolcraft for any of you locals)
Product No: 01TERC 35TEXACO RUSTPROOFING COMP. L
They make a number of compounds (undercarriage, painted surfaces). Concensus was that Texaco Rustproof Compound L is the best all around material to spray on the car. It has the consistency of grease. It must be mixed with mineral spirits before spraying on the car. The mineral spirits carry it through the spraying process then dries off, leaving the rustproofing compound on the car.
A lot of the rustproofing shops use this compound. That's where I found out about it. I actually visited with an engineer that manufactured Polyoleum and wasn't impressed with that product. The stuff hardens to a waxy consistency and is probably prone to flaking and actually making corrosion worse in the long run. Also, when I was an engineer at Chrysler 20 years ago, the corrosion engineers pointed to this compound as being the best.
Speaking from 20 years experience with this Texaco material, the compound does not harden, but it does need to be refreshed every 2-3 years, especially in the high wash areas, as it slowly dries out over time. The low wash areas, such as blind door cavities, are good for much longer. Some shops using this material usually inform their customers that a revisit for refreshing the application should be done for a minimal fee and encourage such a program. I don't believe in any rustproofing material that is advertised as "good for life" with a single application.
Also from experience I can say this material does an excellent job of protecting all surfaces that are covered. I keep my cars a long time. And Michigan is about as bad as it gets for auto body corrosion. The only rust problems I've had are where corrosion starts from the outside inward, or blind areas like the A or B pillar that are practically impossible to rustproof.
