Ran across this ezine article while reading usenet news.

http://www.imcool.com/articles/aircondition/ac_sealants_p1.htm

It's basically a comparison of the claims/literature/features of four a/c sealing products. Three of them appear to be moisture activated epoxies, while the fourth just swells rubber seals.

What I found intersting is some data from SSR, which manufactures cryochem, one of the epoxy based solutions. They warranty the repair, refunding the cost if it does not work as claimed. As such, they have visibility as to what/how/when the product is used. What I found amazing is that 1 in 6 applications of their product is to Mercedes Benz automobiles! Apparently that many evaporators get leaky, and that many owners get sticker shock at the replacement cost. I didn't realize our cars sucked so badly.

That said, I used cryochem on my 124 with leaky evaporator. It appears to have worked perfectly, so I'm quite satisfied.

- Jim

Congratulations!
 

You have found one of the best sources for unbiased information on automotive air conditioning and engine cooling systems on the internet.

Cool Profits Magazine was the first journalistic source to write about Mercedes-Benz Antifreeze Anticorrosion Agent containing Glysantin G-05, and is an excellent source of information on all aspects of engine cooling and climate control. The magazine is published by John Hess out of his home in Petaluma, CA, and is directed towards professional radiator and AC shops.

I have had several conversations with John, and he is aware of MercedesShop, and the lengthy discussions we have had regarding Mercedes antifreeze vs "the green stuff".

Here's another example of why this resource is so great!

Thanks Jim!!:D:D