if you want to use silks use a lightweight fusable tricot interfacing on the backs- keeps the fraying under control & also makes sewing (and cutting) easier. I love silks and have used them in many quilts- no reason not to if that's what you like & goes well with your project. it is important to have a new-sharp blade in your rotory cutter- and fuse the interfacing to the silk before cutting- (just ask at joannes or other store like that for the interfacing) it's not fusable web used for appliques- it is a lightweight thin white fabric (alot like a dryer sheet) that has fusable on one side- it stays inside as another layer. ..like what is in a collar or cuff- but lighter weight- soft not stiff.