Do not trash it. Yes you can quilt with it just make sure your weights are, if not the same then close. I have had one of my double knit polyestor quilts for over 30 years and it is still warm and bright. I do need to put on a new backing, this poor quilt is well loved and used in the house, on the lawn, camping, makes a great tent for the grands, there parents remember using it for the same thing.LOL I do tye my poly quilts and yes I use batting. good luck and enjoy.