... bacteria, mildew, wear, sunlight and abrasion. Azo free. Our bonded nylon thread remains unbroken, and plies stay together do not split ... tenacity and stretch than unbonded nylon thread. For many applications, such as luggage, shoes and leather, canvas, safe bag, car seat ... parachute and other heavy duty sewing. It contains the general nylon's character, low elongation's super quality, high strength, ...