After reading through this thread from the first, I started to wonder about my batting choices and did a little research. I am pleasantly surprised, and I also learned something about basting spray.
Here is the conclusion of the study:
'Fusible battings appear to be an acceptable commercial adhesive-containing product for quilts intended as heirlooms or for sale to collectors or museums.
All the quilt-basting sprays, except Spray and Fix, were associated with significant yellowing or strength losses following both shorter and longer periods of heat-aging and light exposure.
Fusible webs, while acceptable for quilts intended to last for a lifetime, could not be recommended for quilts intended to be handed down from generation to generation or for studio art quilts intended for sale to serious collectors or museums.'
Here is the link to the entire study for anyone wanting more information:
http://cool.conservation-us.org/jaic...44-01-003.html