Braided from continuous Acrylic blended fiber, Synthetic Yarn PTFE Packing is impregnated with PTFE and a proprietary inert lubricant. Synthetic PTFE Yarn Packing is also a non-staining and non-contaminating packing with excellent heat dissipation properties. A durable and resilient packing for general service applications such as centrifugal, rotary, and reciprocating pumps, as well as valve service. Our proprietary lubricant is used for extremely low friction at startup and during operation. Equivalent to Garlock Pack Master 1, Garlock 8922, Crane 1335 and Sepco ML-2225.