Oil Resistant O-Ring Kits — Polypac Custom Sealing Solutions

Oil Resistant O-Ring Kits — Reliable Sealing from Polypac

Why Choose Polypac Oil Resistant O-Ring Kits

Polypac is a scientific and technical hydraulic seal manufacturer and oil seal supplier with over a decade of focused experience. Founded in 2008, our vertically integrated production and research approach ensures Oil Resistant O-Ring Kits that consistently meet demanding oil-exposed environments. We blend industry know-how with modern manufacturing to deliver sealing reliability, long service life, and reduced downtime.

Materials & Performance

Our O-ring kits include materials optimized for oil resistance and a wide temperature/chemical range: NBR for general oil applications, FKM for elevated temperature and aggressive fluids, silicone for broad operating ranges, EPDM for specific synthetic oils, and High Quality FFKM for extreme chemical resistance. Polypac also leverages decades of PTFE compound expertise—originally in filled PTFE products—to inform material selection and compounding for improved swell, compression set, and wear characteristics.

Custom Manufacturing & Rigorous Testing

Polypac’s custom rubber ring and O-ring factory spans over 10,000 m² (8,000 m² production space) with advanced production and inspection equipment. We provide turnkey customization: tailored dimensions, dual durometers, bonded seals, and kits for field service. All products undergo industry-standard testing (ISO/ASTM protocols) and our partnerships with universities and research institutes support continuous material innovation and traceable quality assurance.

Applications & Industry Use

Oil Resistant O-Ring Kits from Polypac are designed for hydraulic cylinders, pumps, compressors, gearboxes, automotive systems, and industrial machinery exposed to oils, lubricants, and hydraulic fluids. Kits simplify maintenance with matched materials, cross-referenced part numbers and clear installation guidance to minimize incorrect replacements.

Ordering, Support & Sustainability

Whether you need standard kits or a custom sealing solution for special working conditions, Polypac offers prompt quoting, small-batch prototyping, and scalable production. Our technical team assists with material selection, compatibility analysis and lifecycle optimization to reduce waste and extend service intervals.

Choose Polypac Oil Resistant O-Ring Kits for proven performance, expert engineering, and responsive global support.

Oil Resistant O-Ring Kits Display

FAQ:
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.

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 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.

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.

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