Polypac Custom Seals — Reliable Hydraulic Seals & O-Rings

Product Overview

GSI Seals presents Polypac, a scientific and technical manufacturer specializing in hydraulic seals and oil seals. Founded in 2008, Polypac delivers filled PTFE seals and a wide range of O-rings made from NBR, FKM, silicone, EPDM and FFKM. Our products combine proven materials with precise manufacturing to provide dependable sealing performance for industrial, mobile and hydraulic systems.

Key Features

Advanced Materials

Polypac started with filled PTFE compounds including bronze, carbon, graphite, molybdenum disulfide and glass fillers. We now offer elastomers and high-performance materials that suit oil, fuel, hydraulic fluids and extreme temperatures. Material choice is optimized for wear resistance, low friction and chemical compatibility.

Precision Manufacturing

Our factory covers over 10,000 square meters with 8,000 square meters of production space and modern testing equipment. Tight tolerances and consistent quality control ensure seals fit and function reliably under pressure and repeated cycles.

Customization and Testing

We work closely with universities and research institutes to develop custom solutions for special working conditions. Polypac offers tailored rubber rings, O-rings and PTFE parts to meet specific dimensions, compounds and performance requirements. Every custom product undergoes rigorous testing to verify sealing performance and durability.

Applications

Polypac seals are used in hydraulic cylinders, pumps, valves, compressors and rotating equipment. Typical industries include construction machinery, agriculture, mining, energy and general industrial manufacturing. Our seals are designed to minimize leakage, reduce maintenance and extend equipment life.

Why Choose Polypac

Choose Polypac for technical expertise, advanced production capabilities and reliable materials. As one of Chinas leading seal manufacturers, we combine research partnerships with real-world experience to deliver products you can trust. Fast response, custom options and consistent quality make Polypac an ideal partner for sealing needs.

Get Started

Contact GSI Seals to discuss your sealing challenge and request samples or drawings. Polypac provides clear technical support and tailored solutions to keep your equipment running smoothly.