Dallas, yep Google works that way... type in words and it searches. I am skeptical that there is such a product as 240 degree pex and asked Nick for a part number or link to such product. None of the specs I can find exceed 200 degrees and since Nick is the expert I asked him to share his sources. So far you or no one else has come up with it... Google will come up with search results (as will Peanut butter Pex too!)
Why? I'm plumbing a hydronic heating system and want a loop to tie into my engine coolant. 200 degree plus coolant circulating and if there was such a thing as a "Heat Pex" rated at 240 degrees (as was the claim in one of the first posts of this thread) I'd like to use it. Seems to be like the mystical Hong Kong doctor, Dr. Chang, who rebuilds hymens. People talk about it, but nobody's seen it done!