I have been trying for three days to find some information about this. I've Googled, Google Grouped, and Froogled. Other than Monsanto (apparently the registered trademark of Cerex), which I also searched, zip is what I get. There is an auction on eBay I'm interested in. It is for 18" x 100 yards of very, very lightweight polyester interfacing. Auction does not say whether it is woven or not.
The seller also says it is suitable for pattern tracing, which is what I am after, as I am running out of the 40 yards of non-woven Pellon 910. (Just remembered that I bought the Pellon nearly three years ago and didn't report how it worked for me - Cea had told me to report....sorry it's soooo late!....it works very well for pattern tracing).
Here is the auction so you can look at it and hopefully you kind souls (with way more experience than I have) can tell me if it is indeed suitable. I'm not in a hurry, as it seems to be offered often.
I will continue searching for information (later today. bedtime now, it's 2:23 a.m. central) but I appreciate what help I may receive.
Thank you very much!
Missy in the Icebox of the Nation, Northern MN, USA