Polypac Chemical Resistant O-Ring Kits

Polypac Chemical Resistant O-Ring Kits deliver durable, tested O-rings in FKM, FFKM, NBR and more. Backed by advanced manufacturing, custom options, and industry partnerships for reliable sealing in corrosive environments.
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Product Description

Polypac Chemical Resistant O-Ring Kits — Reliable Seals for Harsh Environments

Polypac Chemical Resistant O-Ring Kits are engineered to protect equipment exposed to aggressive chemicals, fuels, solvents and high temperatures. Whether you need standard sizes or custom O-rings, our kits combine material variety, quality testing and practical organization to reduce downtime and simplify maintenance.

Why choose Polypac O-Ring Kits?

  • Proven expertise: Polypac has manufactured seals since 2008 and partners with universities and research institutes to improve sealing materials and designs.
  • Advanced production: Our custom rubber ring and O-ring factory covers over 10,000 m² with 8,000 m² of workshop and industry-leading production and testing equipment.
  • Material options: Kits include chemical resistant materials such as FKM (fluoroelastomer), FFKM, NBR, EPDM and silicone to suit different media and temperature ranges.

Practical kit features

  • Multiple materials in one kit — choose the right seal for acids, bases, fuels, or solvents.
  • Common sizes and special sizes available — ideal for maintenance teams and field service.
  • Clear labeling and packaging — fast part identification to minimize service time.
  • Tested for chemical resistance and dimensional accuracy — reduces risk of leaks and component damage.

Applications

Our Chemical Resistant O-Ring Kits are suited for chemical processing, oil & gas, hydraulic systems, pumps, valves, laboratory equipment and industrial machinery. Polypac’s experience in filled PTFE and elastomer development ensures each kit delivers lasting performance in demanding conditions.

Value and support

Choosing Polypac means you get more than parts — you get engineering support, material guidance and the option for custom O-rings to match special working conditions. Our quality control and long-term research collaborations demonstrate our commitment to reliability and customer success.

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Order a Chemical Resistant O-Ring Kit from Polypac to simplify repairs, increase uptime and protect critical equipment. Contact us for material recommendations, custom sizing or bulk solutions tailored to your application.

Detailed display

  • ORing-Kit 011Sumt in

Q&A

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.
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.
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.
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.

About other questions pls contact me directily.

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

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