vilene S520 Heavy Weight Interfacing - Equivalent to Pellon Peltex 71F Vilene S520, 30cm wide S520 is a fusible, heavy weight interfacing UK equivalent of Pellon Peltex 71F one metre £5.00 Quantity: at £5.00 each Add To Basket 43 in stock. Vilene S520, 30cm wide S520 is a fusible, heavy weight interfacing UK equivalent of Pellon Peltex 71F one metre Vilene S520 is washable and dry cleanable and will not lose it's shape. Use it to make bags, hats, belts and other craft projects where a firm outcome is required Firm Fusible Vlieseline Information Washable and dry cleanable pelmet interfacing Smooth, fabric look & finish. Retains shape. Comfortable to iron-on Instructions For Use Place the interfacing with the coated side on the wrong side of the fabric. Then cover with a damp cloth and press each area for about 15 seconds, being careful not to move the iron. Allow the pieces to cool flat for about 30 minutes, so that the adhesive can set properly.