The Silicone Round Cord from Grainger is a silicone rubber cord that is round in shape. It has a temperature range of -100 to 500°F and comes in multiple diameters from 1/16 inch to 3/4 inch. The cord has good flexibility and chemical resistance. It can be used for a variety of applications including gaskets, seals, vibration dampening, and more. The cord meets Mil Spec MIL-R-6130 Type II, Class I. It comes in standard lengths of 25 ft and 50 ft.