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Polypac Copper Filled PTFE Seal — Reliable Hydraulic Sealing Solution

Polypac Copper Filled PTFE Seal delivers low friction, excellent wear resistance and strong mechanical support for hydraulic and industrial applications. Manufactured in advanced facilities with customization options for demanding environments.

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Product Description

Product Overview

What is Copper Filled PTFE Seal?

Copper filled PTFE seals combine the self-lubricating, chemically resistant properties of PTFE with copper particles that improve strength, thermal conductivity and wear resistance. This hybrid material offers dependable sealing performance in hydraulic cylinders, pumps, valves and rotating or reciprocating shafts where durability and low friction are essential.

Key Features & Benefits

Low friction: Reduces wear on mating parts and improves efficiency.
Enhanced strength: Copper filler increases structural support and anti-extrusion performance under pressure.
Wide chemical compatibility: Resists fuels, oils and most industrial chemicals.
Thermal stability: Performs reliably across a broad temperature range common in hydraulic systems.
Long service life: Lower wear rate means longer intervals between maintenance.
Customizable: Sizes and geometries can be tailored to meet special working conditions.

Applications

Copper filled PTFE seals are ideal for hydraulic cylinders, industrial pumps, rotary and reciprocating shafts, piston seals and valves. They are particularly suitable where metal-to-polymer contact, high pressures or elevated temperatures demand stronger material support without sacrificing low friction.

Why Choose Polypac?

Proven Manufacturing and R&D

Polypac is a scientific and technical hydraulic seal manufacturer and oil seal supplier. Since 2008 we have specialized in filled PTFE seals and expanded to a full range of sealing materials. Our factory spans over 10,000 m² with 8,000 m² of production space and advanced testing equipment. We work closely with universities and research institutes to ensure materials and designs meet real-world demands.

Quality & Customization

We offer precise machining, strict quality control and tailored solutions for special working conditions. Whether you need standard sizes or custom profiles for extreme environments, Polypac provides reliable sealing solutions backed by industry experience.

Ordering & Support

Contact Polypac for technical consultation, samples and custom quotes. Our team will recommend the optimal copper filled PTFE seal design to improve system efficiency, reduce downtime and extend service life.

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Q&A

What does "AS568" mean?

AS568 is the Aerospace Standard that defines the dimensions for over 360 standard O-ring sizes. It is the most widely accepted sizing system in North America and globally. An AS568 number (e.g., AS568-214) specifies a precise inside diameter and cross-section.

How important is surface finish on the metal parts that contact the seal?

Extremely important. A rough surface will abrade and wear out the seal quickly, causing leaks. A finish that is too smooth can prevent a lubricating film from forming. A typical recommended surface finish for dynamic applications is 0.2 to 0.8 μm (8-32 μin) Ra.

How do I choose the right material for my sealing application?

Material selection depends on four key factors: Media: What fluid or gas will the seal contact? (e.g., petroleum oil, water, chemicals, steam) Temperature: What is the minimum and maximum operating temperature? Pressure: What is the system's operating pressure? Are there pressure spikes? Application: Is it a static, dynamic, or rotary seal? Example: NBR (Buna-N) is excellent for standard hydraulic oil, while FKM (Viton®) is needed for high temperatures or aggressive chemicals.

What is the purpose of the metal spring in a rotary shaft seal?

The garter spring in a shaft seal (e.g., FSKR, SPGO types) provides a constant radial force on the sealing lip. This ensures consistent contact with the rotating shaft, compensating for minor wear, eccentricity, and vibration to prevent lubricant leakage.

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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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