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Polypac PTFE BRT Seals — Durable, Low-Friction Hydraulic Seals

Polypac PTFE BRT seals offer low friction, long service life, and excellent chemical resistance for hydraulic and oil sealing. Manufactured in China with advanced equipment and customizable options, they deliver reliable performance in harsh conditions.

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Product Information

Polypac PTFE BRT Seals — Reliable Sealing for Demanding Services

Polypac PTFE BRT is a filled PTFE sealing solution designed for hydraulic and oil applications where low friction, wear resistance, and chemical stability matter. Made by Polypac, a specialist in seal manufacture and material development, PTFE BRT combines proven PTFE properties with reinforced fillers to extend service life and reduce maintenance.

Key Features

Low friction surface for smooth dynamic movement
Improved wear and extrusion resistance compared with pure PTFE
Good chemical and temperature tolerance for varied fluids
Available in custom sizes and profiles to fit special equipment

Benefits for Your Operation

Choosing PTFE BRT from Polypac reduces downtime and total cost of ownership. The low friction lowers heat and energy loss in hydraulic systems. Reinforced fillers enhance durability, meaning longer service intervals and fewer replacements. Polypac’s careful manufacturing and testing ensure consistent quality so your equipment runs reliably.

Common Applications

PTFE BRT is ideal for piston seals, rod seals, guide rings, and valve components used in mobile hydraulics, industrial presses, injection machines, and other high-demand environments. It performs well with hydraulic oil, many chemicals, and across a broad temperature range.

Why Polypac?

Founded in 2008, Polypac began with filled PTFE products and now offers a broad range of seals and O-rings. Our facility covers over 10,000 m² with advanced production and testing equipment. We collaborate with universities and research institutes to keep materials and processes at the cutting edge. Customization is core to our service — from special compounds to tailored part dimensions.

For engineers and procurement teams seeking a dependable PTFE sealing material, Polypac PTFE BRT provides a practical, cost-effective option. Contact us for samples, material data, and custom design support to match your application requirements.

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Question you may concern

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.

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 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.

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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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