Originally Posted by Quiltforme
whats a scrim?
It's a thin layer of fabric that the batting is needlepunched through for stability.
Needlepunched battings are more stable the non-needlepunched.
Battings that are needlepunched through scrim are the most stable and can be quilted with lines much further apart. Warm n Natural is an example of a batting needlepunched through scrim; quilting lines can be up to 10" or so apart, or the quilt can be tied.
My favorite batting is an old-fashioned one, Mountain Mist Blue Ribbon 100% cotton. This batting is not needlepunched, and therefore should be quilted with lines not more than 2" or so apart. It would not be a good batting to use for a tied quilt (pieces of the batting would ball up).