A sturdy Rod Seal, which fi nds its usage in High Pressure Cylinders, as the materials used in its construction arrests any sort of extrusion possibilities. The RSE Seal is a single acting rod seal consist of a main sealing element TRIAFLEX® (NBR) elastomer with multiple lips to have a proper sealing and is supported by the rugged element in TRIAFLEX® with fabric reinforcement, performing the main sealing function and to avoid the extrusion it is again supported by TRIAMIDE® (POM) ring.