dbde24e1-4012-47b6-8db4-e89ee4ca5a70 - Polypac

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Polypac Complete Seal System — Reliable Custom Hydraulic & Oil Seals

Polypac's Complete Seal System delivers durable, custom hydraulic seals and O-rings made from PTFE, NBR, FKM, FFKM, silicone and more. Advanced factory, rigorous testing, and tailored solutions for harsh conditions ensure dependable sealing performance.

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Product Description

Overview of the Complete Seal System

Polypac’s Complete Seal System is a practical, ready-to-deploy range of hydraulic seals, oil seals and O-rings designed for demanding environments. Built on years of material research and precision manufacturing, this system provides dependable sealing performance with fast customization to fit your equipment.

Why Choose Polypac?

Founded in 2008, Polypac combines scientific research with advanced production. Our custom rubber ring and O-ring factory spans over 10,000 m² with 8,000 m² of dedicated production space. We use industry-leading equipment and maintain close ties with universities and research institutes to keep materials and processes cutting-edge.

Key Benefits

Reliable sealing for hydraulic and lubrication systems.
Wide material selection: PTFE (bronze, carbon, graphite, MoS₂, glass-filled), NBR, FKM, FFKM, silicone, EPDM.
Custom design for special working conditions—temperature, pressure, chemical exposure.
Advanced testing ensures consistent performance and long service life.

Practical Applications

The Complete Seal System fits many industries: hydraulic equipment, oil and gas, construction machinery, automotive, and industrial valves. Whether you need standard O-rings or filled PTFE seals for extreme wear and friction, Polypac provides parts that reduce downtime and maintenance cost.

Fast Customization and Support

We value our customers and offer clear, practical support. From material selection to prototype testing, Polypac delivers timely samples and scalable production. Our team helps choose the best seal solution so your system runs reliably under real-world conditions.

Conclusion

Polypac’s Complete Seal System combines proven materials, modern manufacturing, and tailored engineering to deliver seals that work when it matters most. Choose Polypac for seals engineered for durability, performance, and peace of mind.

Detailed display

Question you may concern

What is the difference between NBR and FKM materials?

NBR (Nitrile/Buna-N): A general-purpose, cost-effective material with excellent resistance to petroleum-based oils and fuels. It has a standard temperature range of -30°C to +100°C (-22°F to +212°F). FKM (Fluoroelastomer/Viton®): A premium material with excellent resistance to high temperatures (up to 200°C+), chemicals, and oils. It is used in more severe environments but is more expensive than NBR.

When should I use a spring-energized seal instead of a standard elastomeric seal?

Consider a spring-energized seal (e.g., GSF, SPN types) for demanding applications involving: Extreme Temperatures (below -30°C or above +200°C) Aggressive Chemicals that elastomers can't handle Very Low Leakage or "Zero Leakage" requirements Poor Lubricity or dry running conditions The internal spring maintains constant sealing force, compensating for wear and system variables.

Why did my O-ring fail prematurely?

Common causes of O-ring failure include: Chemical Incompatibility: Swelling, softening, or cracking due to fluid exposure. Improper Sizing: Using an incorrect size leads to over-compression or inadequate sealing force. Abrasion: Wear and tear from rough surface finishes or contaminated fluid. Extrusion: The seal is forced into the gap between metal parts under high pressure. Installation Damage: Nicks, cuts, or twists during assembly.

What is the difference between a static seal and a dynamic seal?

A Static Seal is used between two surfaces that do not move relative to each other (e.g., pipe flanges, end caps). O-rings and gaskets are common static seals. A Dynamic Seal is used between surfaces that do move (e.g., piston and cylinder, rotating shaft). Rod seals, piston seals, and rotary shaft seals are designed for this purpose.

Get in Touch

PRODUCTS

dbde24e1-4012-47b6-8db4-e89ee4ca5a70

Polypac Industrial Technology Co.,Ltd

+86 189 2463 6168

rose@dmsseals.com

No. 5, Hegui Mid Road, Hegui Industrial Park, Lishui Town, Nanhai District, Foshan City, Guangdong Province, P.R. China.

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