Heavy Iron On 1060HF (118 ratings) £1.00 Sorry this item is out of stock at the moment 0 in your basket View Basket Checkout Iron on Heavy Weight Interfacing. Available in White. It is a crisp, stable non-woven interfacing fabric used to give extra 'body' to fabrics light to coat weight. Fabrics that require a structured look. Fusible on one side. 68cm wide Washable and dry cleanable. Sold by the quarter metre.