These pads are the same thing as Silpat nonstick baking sheets, yes?
in a word, No. They are very similar... they look basically the same, say for the color.
This is what were talking about yes?
http://www.amazon.com/Silpat-Non-Stick-Baking-2-inches-Sheet/dp/B00008T960
The big difference here is the Silpat is made of food grade silicone.
The Oil Slick Pad is made of: USP6 "Medical" grade Silicone. keeping in mind that even on the slick pad website it says it is only solvent resistant. that would be the one big plus with the sheets made of PTFE. They are 100% non-polar solvent resistant
On a total side note about the slick sheets. I can be sure cause i have yet to try and am a little leary about doing so, but i will speculate that the sheet will also be difficult to use in alcohol purging because of its textile like design... it seemed to be ok with non-polars, but i wonder if something like a polar solvent would seep through... hard to say...
A final word about the silpat's, I can only speculate... but from what i can tell there is no reason to choose a silpat for price reasons... the question looming over the silpat wouldn't spur me (personally) into buying a silpat over an oil slick since i know that the slicks work...
however, If you are having trouble buying oil slick products then it might be worth a try... never will know til you do try, but i don't know how hard it is to get an oil slick pad outside of the US... it seems rather difficult seeing that people were having such a hard time finding one in Canada... I think that is a bummer... maybe FC needs a worldwide distributor of Oil Slick products...