Polypac Silicone O-Ring Kits — Reliable Industrial Sealing

Polypac Silicone O-Ring Kits provide durable, high-temperature and chemical-resistant sealing for hydraulic and industrial applications. Available in custom sizes and bulk kits from a leading O-ring factory with advanced production and testing.
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Product Information

Polypac Silicone O-Ring Kits — Practical, Reliable Seals

Polypac Silicone O-Ring Kits are designed for professionals who need reliable, long-lasting seals. Our kits include silicone O-rings in a wide range of sizes and hardness grades, making them ideal for maintenance, repair, and production needs. Each kit comes from Polypac's advanced O-ring factory with strict quality control to ensure consistent performance.

Key Features

  • High temperature resistance: silicone O-rings remain flexible across wide temperature ranges.
  • Chemical compatibility: good resistance to water, many chemicals, and weathering.
  • Wide size coverage: standard and custom sizes to fit hydraulic seals, oil seals, and more.
  • Durable materials: selected silicone compounds for longevity and stable sealing.
  • Ready-to-use kits: organized assortments for quick maintenance and reduced downtime.

Applications

These silicone O-ring kits suit many industries: hydraulic systems, pneumatic assemblies, household appliances, food-grade equipment (with appropriate silicone grades), and general industrial maintenance. They work well as replacement parts for oil seals, custom rubber rings, and other sealing needs.

Why Choose Polypac?

Founded in 2008, Polypac is a scientific and technical hydraulic seal manufacturer and oil seal supplier. Our custom rubber ring and O-ring factory spans over 10,000 square meters with state-of-the-art production and testing equipment. We collaborate with universities and research institutes to develop better sealing materials and customized sealing solutions for special working conditions.

Customer Value

When you choose Polypac Silicone O-Ring Kits, you get more than parts — you get a partner. We offer fast response, custom sizing, and bulk supply options to reduce inventory headaches. Our kits help reduce leaks, extend service intervals, and protect equipment investment. We prioritize clear communication and tailored solutions so customers feel supported at every step.

Order Information

Available in assorted kits and custom orders. Contact Polypac for material certifications, size charts, and lead times. Get dependable silicone seals from a leading O-ring factory and improve your sealing reliability today.

Picture Show

  • ORing-Kit 007 Cat-A

Q&A

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.
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.

If you have any questions or concern, please contact us.

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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Mobile Equipment Seals
Mobile Equipment Seals
Bronze PTFE Seal
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Pneumatic Cylinder Repair
Pneumatic Cylinder Repair
Heavy Equipment Cylinder Repair
Heavy Equipment Cylinder Repair
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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.

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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