When it comes to demanding sealing applications, Metric FFKM O-Rings – 90 Shore A are engineered to deliver exceptional performance under extreme conditions. Made from premium perfluoroelastomer (FFKM), these O-rings combine high hardness, chemical resistance, and temperature stability, providing reliable sealing where failure is not an option.


Premium Material: FFKM
FFKM, or perfluoroelastomer, is one of the most advanced elastomer materials available today. Unlike standard fluorocarbon (FKM) or silicone O-rings, FFKM provides:
Unmatched chemical resistance: Withstands aggressive acids, alkalis, solvents, and oxidizing agents without degradation.
Broad temperature range: Maintains elasticity and sealing integrity from -20°C to +320°C, suitable for high-temperature processing and cryogenic conditions.
Excellent mechanical properties: High tensile strength, low compression set, and resistance to swelling or embrittlement.
Hardness Advantage – 90 Shore A
The 90 Shore A hardness of these metric FFKM O-rings offers:
Superior mechanical strength:
Ideal for applications where the O-ring is exposed to high pressure or mechanical stress.
Enhanced sealing reliability:
Maintains shape and compression over time, reducing leakage risks in static or dynamic sealing scenarios.
Long service life:
High hardness improves resistance to extrusion, wear, and repeated thermal cycles, ensuring reduced maintenance.

Precision Metric Sizing
These O-rings are manufactured according to precise metric standards, ensuring:
Key Features
Extreme chemical compatibility: Resistant to almost all known chemicals, including strong acids, bases, ketones, and organic solvents.
Temperature stability: Functionality retained in extreme hot and cold conditions, including short-term temperature spikes beyond 320°C.
Low gas permeability: Effective in vacuum and pressurized systems.
High resilience: Excellent recovery after compression for reliable sealing.
Durable and reliable: Reduces downtime and maintenance costs in critical industrial applications.
O Ring Applications

They provide reliable sealing performance without deformation or leakage.
Typical Applications:
Plumbing systems: Prevent water leakage in joints and pipes.
Machinery & equipment: Used for hydraulic and pneumatic sealing.
Automotive parts: Suitable for engine, fuel, and brake systems.
Home & garden tools: Replacement parts for Bunnings machinery and DIY projects.
Products Advantages
1. Long Service Life
The combination of high elasticity and chemical resistance ensures stable performance and minimal degradation over time, significantly extending equipment life.
2. Superior Sealing Effect
Even under high pressure and extreme temperature changes, Viton O-rings maintain tight sealing, effectively preventing leakage and reducing maintenance costs.
3. Environmentally Friendly Production
All materials comply with RoHS and REACH standards, ensuring environmental safety during use.

Why Choose US ?

1.10,000+ Molds Available – Extensive mold library to meet diverse size and material requirements.
2.No MOQ, Starts from One Piece – Flexible customization from sample testing to bulk production.
3. In-Stock Inventory - Standard sizes in stock, ensuring quick shipment, Fast Global Delivery
Focus on Quality
•Precise inspection, zero-defect quality, ensuring both delivery time and quality.
•Meets the 125/1008H high-temperature aging test requirements of the new energy industry;
•Withstands commercial cleaner (Alcohols, Alkalis, Oils) test requirements.

Packing & Delivery

|
MOQ |
1 pcs |
|
Lead Time |
- In stock: Shipped within 3 days |
|
Port |
China Xiamen |
|
Shipping Methods |
Express (DHL, FedEx, UPS), Air, or Sea |
|
Sample Policy |
Samples available; customer should pay freight cost |
Qualification Certificate

Contact US:
Xiamen Best Seal Imp and Exp Co.,Ltd
Tel: +86-592-5782315
Mob: +8618950159396
Email: yunying2@bestsealhk.com
Add: Unit 522-525, Gaodian Road 6#, Huli District, Xiamen, China
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