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Copper Filled PTFE Seal — Polypac Advanced Sealing Solutions

Copper Filled PTFE Seal — Polypac Advanced Sealing Solutions

Product Overview

Copper Filled PTFE Seal from Polypac is a high-performance filled PTFE solution engineered for extreme wear, friction and thermal demands. Combining PTFE’s chemical inertness with copper filler’s improved thermal conductivity and load-bearing capacity, these seals are ideal for hydraulic cylinders, rotary shafts, compressors and other dynamic applications requiring long life and stable performance.

Key Features

Low friction, excellent dimensional stability, and enhanced heat dissipation are at the core of our Copper Filled PTFE Seal design. The copper-filled matrix reduces creep and extrusion under high pressure, improves break-in behavior, and extends service intervals. Our formulations maintain chemical compatibility across oils, fuels and many aggressive media while retaining a wide operating temperature range.

Performance Advantages

Polypac’s Copper Filled PTFE Seal delivers superior wear resistance and reduced coefficient of friction compared with unfilled PTFE—resulting in lower energy loss, reduced heat buildup and quieter operation. The copper filler also boosts thermal conductivity to better manage localized heat at seal interfaces, which increases reliability in high-speed and high-pressure systems.

Applications

Typical applications include heavy-duty hydraulic cylinders, rotary shafts, pumps, compressors and industrial valves. The Copper Filled PTFE Seal is especially effective where combined demands for low friction, contamination tolerance and thermal management exist, such as in mobile hydraulics, aerospace actuators and industrial machinery.

Customization & Manufacturing

Polypac offers custom sizes, profiles and blends to match specific gland designs and operating conditions. Our 10,000+ m2 facility, advanced production equipment and long-term partnerships with universities and research institutes ensure tight tolerances, repeatable quality and scalable supply for prototypes through mass production.

Quality Assurance & Support

Every Copper Filled PTFE Seal undergoes rigorous dimensional, material and performance testing. Polypac provides technical consultation, application optimization and rapid prototyping to help you select the right seal and material. Trust Polypac for engineered sealing solutions that balance performance, cost and longevity.

Copper Filled PTFE Seal Display

FAQ:

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.

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.

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.

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.

Table of Contents

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Copper Filled PTFE Seal — Polypac Advanced Sealing Solutions
Product Overview
Key Features
Performance Advantages
Applications
Customization & Manufacturing
Quality Assurance & Support
Copper Filled PTFE Seal Display

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