3500 PHENOLIC FIBER IMPREGNATED WITH PTFE BRAIDED PACKING
The phenolic fiber does not melt or burn in a flame at 2500℃. It has good thermal insulation performance and excellent corrosion resistance.

The base material and process are the same as MK8000, supplemented by a silicone rubber material as an elastomer at the center. The product has better compression compensation performance. It is suitable for pumps, valves and kettles with higher linear speed and higher pressure.