Polypac Mini O-Ring Kit — Compact, Durable O-Rings for Sealing

Polypac Mini O-Ring Kit delivers a compact selection of high-quality O-rings (NBR, FKM, silicone, EPDM, FFKM) for hydraulic seals and oil seals. Trusted manufacturer since 2008 with advanced production and testing facilities.
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Product Information

Polypac Mini O-Ring Kit — Reliable sealing in a compact package

The Polypac Mini O-Ring Kit provides a convenient selection of precision O-rings designed for hydraulic seals, oil seals, and general sealing needs. Built by Polypac — a technical seal manufacturer established in 2008 — this kit combines material variety, consistent quality, and practical packaging so technicians and engineers get the right O-ring on hand when they need it.

What's in the mini O-Ring kit

  • Multiple sizes of O-rings for common repair and maintenance tasks
  • Materials: NBR, FKM (Viton), silicone, EPDM, and FFKM for high-performance needs
  • Organized storage box for quick selection and inventory control

Key benefits

  • Versatile: Suitable for hydraulic seals, oil seals, pneumatic systems, and general machinery maintenance
  • Durable materials: Options for oil resistance (NBR, FKM), heat and chemical resistance (FKM, FFKM), and flexibility (silicone, EPDM)
  • Time-saving: On-site availability reduces downtime during repairs
  • Trusted source: Polypac’s large factory (10,000+ m² with 8,000 m² production space) and advanced testing equipment ensure consistent quality

Why choose Polypac O-ring kits

Polypac is a specialist in hydraulic seal and oil seal manufacturing. Starting with filled PTFE products and expanding into a wide range of sealing materials, we maintain long-term collaborations with universities and research institutes to improve sealing performance. Our mini O-Ring kit benefits from this expertise and strict quality control, giving you reliable rubber O-rings and custom O-rings when standard parts won't do.

Quality assurance & custom options

Each kit is produced with industry-grade equipment and tested for dimensional accuracy and material properties. If your application requires unusual sizes, special compounds, or higher-pressure hydraulic seals, Polypac provides custom sealing solutions and material development to fit special working conditions.

Order the Polypac Mini O-Ring Kit to keep trusted, professionally manufactured O-rings on hand. For custom O-rings or bulk supply of hydraulic seals and oil seals, contact Polypac’s technical team for fast, expert support.

Product Image

  • ORing-Kit 011Sumt in

Question you may concern

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

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