Polypac EPDM O-Ring Kits — Reliable, Weather-Resistant Sealing Solutions

Polypac EPDM O-Ring Kits deliver durable, weather- and ozone-resistant sealing for hydraulic, plumbing, and industrial applications. Available in assorted kits or custom sizes with fast lead times and strict quality control.
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Product Details

Polypac EPDM O-Ring Kits — Durable Seals for Tough Conditions

Polypac EPDM O-Ring Kits provide dependable sealing where water, steam, hot and cold temperatures, and weather exposure are common. Designed for maintenance teams, OEMs, and field service, our EPDM rubber O-rings offer long service life, excellent elasticity, and strong resistance to ozone and aging.

Why Choose Polypac EPDM O-Ring Kits?

  • Broad compatibility: Ideal for water, steam, glycol, acids and alkalis, and many cleaning agents.
  • Weather and ozone resistance: EPDM excels outdoors and in fluctuating temperatures.
  • Reliable elasticity: Keeps sealing pressure stable under repeated compression.
  • Assorted kit convenience: Common sizes packaged for quick repair and routine maintenance.

Quality Manufacturing & Custom Options

Polypac is a scientific and technical hydraulic seal manufacturer and oil seal supplier with a modern factory over 8,000 sqm and advanced production and testing equipment. Since 2008 we have expanded from filled PTFE seals to a full range of materials, including EPDM. Our O-ring factory supports custom rubber ring production, fast tooling, and tailored sealing solutions for special working conditions.

What’s in the Kit

Each EPDM O-Ring Kit includes a selection of the most used sizes, neatly organized for quick access. Kits can be customized by quantity, hardness (Shore A), and special tolerances to meet your application needs. Bulk and OEM packing options are available.

Trusted Performance & Service

We run stringent quality tests and cooperate with universities and research institutes to improve compound formulations and durability. Polypac’s EPDM O-rings are produced to reduce downtime, lower maintenance costs, and deliver consistent sealing performance.

Choose Polypac EPDM O-Ring Kits for a practical, high-quality sealing solution. Contact us for custom sizes, certifications, or a quote—fast lead times and expert support included.

Product Images

  • ORing-Kit 007 Cat-A

FAQ

Can I reuse a seal?
We strongly recommend never reusing seals. Once compressed and used, a seal takes a "set" and its elastic properties are degraded. Reusing it almost always results in a leak. Always install a new seal during any maintenance or repair.
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 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.
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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Polypac Industrial Technology Co.,Ltd
No. 5, Hegui Mid Road, Hegui Industrial Park, Lishui Town, Nanhai District, Foshan City, Guangdong Province, P.R. China.
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Whether you need product details, technical support, or a custom solution, we’re here to assist.

Your privacy matters to us. We handle your data securely, in compliance with international quality and safety certifications.

With over 10 years of sealing expertise, we are ready to provide you with reliable solutions.

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Whether you need product details, technical support, or a custom solution, we’re here to assist.

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