Gland Packing /Valve Pump Packing Rope Pure PTFE 5mm~25mm Valve Shaft Stem Seal

It has good corrosion resistance, good self-lubrication and anti-sticking properties. It is flexible and adjustable due to solid braiding., So it can work well with shafts, stuffing boxes, etc. No adhesion, low surface tension in solid materials, no adhesion of any substance.

eBay