Scrim binder is a thin polypropylene binder used in making quilt batting. The cotton fibers are punched with hundreds of needles through the strong, thin scrim to prevent tearing, shifting or migration. The scrim binder provides additional strength which enables the product to be quilted up to 8 to 10 inches apart, or used as the outer layer for crafts projects. This batting is primarily used for machine quilters and crafts, but can be hand-quilted.