Polypac O-Ring Kits — Reliable, Custom Sealing Solutions

Polypac O-Ring Kits provide durable, ready-to-use O-rings in NBR, FKM, silicone, EPDM and FFKM. Manufactured in advanced facilities with customization options for special working conditions.
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Product Description

Product Overview

Polypac O-Ring Kits deliver a practical, high-quality solution for maintenance, repair and assembly across hydraulic, automotive, industrial and general-purpose applications. Each kit includes a selection of commonly used O-ring sizes and materials chosen to resist oils, fuels, high temperatures, chemicals and aging. Backed by Polypac’s 15+ years of sealing expertise and large-scale production capacity, our kits offer consistent performance and long service life.

Why Choose Polypac O-Ring Kits?

  • Ready-to-use assortments: save time with organized kits that cover routine needs for field service and workshops.
  • Proven materials: available in NBR, FKM, silicone, EPDM and High Quality FFKM for extreme conditions.
  • Durable and reliable: precision molding and strict quality control ensure leak-free sealing and extended durability.

Materials & Compatibility

Our O-ring materials are chosen to match your environment:

  • NBR (Nitrile): excellent for oil and fuel resistance.
  • FKM (Viton): high temperature and chemical resistance.
  • Silicone: low-temperature flexibility and good compression set.
  • EPDM: great for steam, water and weather resistance.
  • FFKM: top-tier chemical and temperature performance for critical applications.

Custom Options & Quality Assurance

Polypac’s factory spans over 10,000 m² with advanced production and testing equipment, enabling fast customization for non-standard sizes, special compounds or combined kits tailored to unique operating conditions. Originating from filled PTFE expertise, we combine material science and manufacturing know-how to meet demanding sealing challenges.

Applications

Suitable for hydraulic cylinders, pumps, valves, compressors, automotive repairs, lab equipment and industrial machinery — any place where reliable sealing prevents downtime and costlier repairs.

Buy with Confidence

Polypac O-Ring Kits are ideal for maintenance teams and engineers who need dependable, ready-to-fit seals. Choose pre-packed assortments or request a custom kit designed for your system conditions. Contact Polypac to specify materials, sizes and quantities — get seals that fit right the first time and keep systems running smoothly.

Product Image

  • O Ring
  • O Ring
  • O Ring

Question you may concern

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.
How can I prevent seal damage during installation?
Use Tools: Always use dedicated installation tools (e.g., picks, cones, guides). Lubricate: Always lubricate the seal and the contact surface. Protect Sharp Edges: Cover sharp threads and edges with tape or use an installation sleeve. Check the Groove: Ensure the installation groove is clean, deburred, and undamaged.
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.
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.

If you don’t find your answer, please E-mail us and we’ll be happy to help you out.

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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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Tags
DC12 Seal
DC12 Seal
OEM Replacement Part
OEM Replacement Part
GST Series Seal
GST Series Seal
Teflon O-Rings
Teflon O-Rings
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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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How Can We Help You?

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

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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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