Polypac Bidirectional Piston Seal Kit — Durable Hydraulic Sealing

Overview

The Polypac Bidirectional Piston Seal Kit is designed to provide dependable sealing for hydraulic pistons that operate in both directions. Combining advanced filled PTFE and high-performance elastomers, this kit reduces leakage, minimizes friction, and extends cylinder life in industrial and mobile applications.

Key Benefits

Reliable Performance

Polypac uses proven materials such as bronze-filled, carbon-filled, and MoS2-filled PTFE to deliver consistent sealing under pressure. The design prevents leakage in both extension and retraction strokes, keeping systems efficient and safe.

Low Friction & Long Life

Low friction materials reduce wear on mating surfaces, lowering heat and extending service intervals. The result is fewer replacements and lower maintenance costs over time.

Easy Installation

The kit includes piston seals, backup rings, and guide elements sized for straightforward replacement. Clear instructions and precise tolerances make installation fast for technicians of all skill levels.

Materials & Custom Options

Polypac began with PTFE solutions and now offers a wide range of elastomers including NBR, FKM, EPDM, silicone, and FFKM. If your application faces extreme temperatures, aggressive fluids, or special pressure profiles, Polypac provides customized seals and material selections to match those conditions.

Why Choose Polypac

Founded in 2008, Polypac is a technical seal manufacturer with a 10,000+ m² facility and advanced production/testing equipment. We collaborate with universities and research institutes to ensure product quality and innovation. Choosing Polypac means working with a partner committed to performance, traceability, and responsive customer support.

Applications

Ideal for hydraulic cylinders in construction equipment, agricultural machinery, industrial presses, and marine systems. The bidirectional kit is perfect where piston movement reverses frequently and reliable sealing is critical.

Order & Support

Contact Polypac for application evaluation, custom sizes, or bulk orders. Our team prioritizes your needs and helps select the right materials to extend equipment life and reduce downtime.