Roberts Anti Fraying spray comes in 600ml cans used by carpet fitters to stop fraying of carpets at the cut edge. Recommended for Axminsters , Wiltons and natual sissel, coir ,sea grass to use this product you must mark a cutting line on the back of the carpet, then spray the area 4 cm wide so that the backing becomes saturated up to the pile anchoring. Then allow the spray to dry completely before cutting. The Anti fray spray dries transparent and non sticky. Coco mats are also sprayed from the top side at close distance.