Heavy-weight sew-in interlining. Ideal for creating sturdy pelmets & other furnishings. Pelmet remains pliable making this weight ideal for curved bays or other than straight projects. Also ideal for adding extra weight & body to creative sewing projects. The interfacing is ideal for bag bases as it adds a solid stable base which is washable so can be sewn in place permanently. For purely creative pieces the interfacing can be painted, stitched through and its rigidity means it is a super backing or base textile for creative works. Washable at 30°C. Dry cleanable. Moderate to hot iron. Certified OEKO-TEX 100 Class 1. Also ideal for adding extra weight & body to creative sewing projects. The interfacing is ideal for bag bases as it adds a solid stable base which is washable so can be sewn in place permanently. For purely creative pieces the interfacing can be painted, stitched through and it?s rigidity means it is a super backing or base textile for creative works. Washable at 30 degree