Nylon is the strongest most popular material. It resists alkalis, has limited life in most acids. Approx. 6% stretch at rated capacity. Temperature limit is 200°F. Most web sling damage starts on the edge and progresses across the face of the webbing. Tuff-Edge, is designed to reduce edge damage. Independent lab tests prove it to be 67% more resistant to edge abrasion and 30% more resistant to edge cutting than standard sling webbing. Assures a soft, conforming grip of high tensile strength to lift without marring or damage to load surface. Easy to position, lightweight nylon web slings resist shock, have low moisture absorption, and resist many chemicals.