Our cable ties are manufactured from the toughest of materials, pure virgin nylon 6/6. Harsh environment grade nylon is insoluble in common solvents, alkalis, dilute mineral acids, most organic acids and most petrochemicals. Operating temperature range is 100% capacity up to 65 deg C (149 deg F), 50% capacity from 65 deg C to 185 deg C (149 to 365 deg F).