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No Standard Answers, Only Customized Solutions.

As a pioneer in peroxide-cured specialty elastomers since 2010, Toper engineers mission-critical FKM, HNBR, and FFKM compounds for extreme environments (-40°C to 350°C). With ISO 9001 & IATF 16949 certified facilities, our 5,000+ formulations empower 1,200+ global enterprises across 30+ countries.

Your one stop supplier for your most challenging sealing solutions

Unstoppable Solutions for an Uncompromising World

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Your one stop supplier for your most challenging sealing solutions

Your one stop supplier for your most challenging sealing solutions

Targeted Applications

▷ Semiconductor Manufacturing Equipment

▷ Aerospace & Aviation Systems

▷ Oil & Gas Exploration/Petrochemical Processing

▷ Automotive Fuel Systems

▷ Pharmaceutical Processing Machinery

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About Us 

Technical Support Package

① Full Performance Datasheets & TDS

② Industry-specific Application Case Studies

③ Custom Manufacturing Capabilities:

　- Tailored dimensions, cross-sections & hardness (Shore A/Durometer)

　- Complex geometries: O-Rings, Oil Seals, Custom Molded Parts

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Toper Perfluoroelastomer (FFKM) - Ultimate Sealing Solution for Extreme Environments

Engineered for Critical Sealing Applications: O-Rings, Custom Moldings & Oil Seals

Manufacturer's Commitment

As a specialized producer of fluoropolymer seals (FFKM/FKM/NBR), Toper guarantees:

✔ ISO-certified vertical production from compounding to molding

✔ Strict QC protocols for batch consistency

✔ On-time delivery of precision sealing components

Collaboration Proposal

▸ Free Sample Kits: Test our FFKM in your application

▸ Factory Tour Invitation: Inspect our R&D/Molding facilities in Jiangsu, China

▸ Technical Consultation: Co-develop solutions for challenging sealing scenarios

Explore our full product range at Toper Materials Portal | OEM/ODM projects welcomed

-40°C

Operational range

350°C

Operational range

1,600+

Withstands

Product Catalog - Key Product Application Types

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NBR

▸ Extreme conditions: -40℃ to 350℃ | 1,600+ chem resistance

▸ For: Semiconductor etch chambers | Jet fuel systems

▸ Economic solution: -30℃ to 120℃ | Mineral/hydraulic oil proof

▸ Applications: Agri-hydraulics | Industrial machinery

Oil Seal

FKM

FFKM

▸ Multi-lip spring design: Dust/oil containment | Friction reduction

▸ Value: +50% rotary equipment service life

▸ Cost-performance: -20℃ to 230℃ | Resists fuels/oil/ozone

▸ Markets: Auto powertrains | Chemical valves

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R&D Center

Research and development ability

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Serving mission-critical sectors

◼ Semiconductor (Wafer Processing Equipment)

◼ Automotive (EV Battery Seals, Fuel Systems)

◼ Medical (Pharmaceutical Processing)

◼ Energy (Oil & Gas Exploration Valves)

◼ Aerospace (Aircraft Hydraulic Systems)

LEARN MORE

      "The laboratory is fully equipped to conduct comprehensive physical property testing, including but not limited to: tensile strength, tear resistance, hardness, density, curemetry (vulcanization characteristics), Mooney viscosity, heat aging resistance, solvent resistance, low-temperature properties, elasticity, abrasion resistance, and dynamic mechanical analysis (DMA)."

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Rubber Tensile Tester

Low-Temperature Chamber

Mooney Viscometer

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Elastomer Testing Machine

Rheometer

TR10 Low-Temperature Retraction

Test Apparatus

Production

Quality management

Learn More
We can OEM

Key Product Application Types

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FFKM

NBR

FKM

HNBR

WELCOME TO OUR HOUSE

Sold in More Than 20 Countries

Leading developer of high-performance elastomer materials for extreme environments.

Q1: What materials are rubber sealing O-rings made of?

A: Our Rubber sealing rings are made from various materials, including:

- NBR (Nitrile Rubber): Oil and fuel resistant.

- EPDM (Ethylene Propylene Diene Monomer): Weather and temperature resistant.

- Silicone: High-temperature and food-grade applications.

- FKM: Chemical and heat resistant.

- Neoprene: Abrasion and weather resistant.

- PTFE (Polytetrafluoroethylene): Chemical and corrosion resistant.

Q2: What sizes are available for rubber sealing O-rings?

A: Rubber sealing rings come in standard sizes (e.g., AS568, ISO 3601, DIN, JIS) and custom sizes. We provide metric and imperial measurements to meet your specific requirements.

Q3: Can I request custom-sized rubber sealing O-rings?

A: Yes, we offer custom sizing based on your specifications. Please provide the inner diameter (ID), outer diameter (OD), and cross-sectional thickness (CS) for accurate production.

Q4: What is the minimum order quantity (MOQ)?

A: Our MOQ is flexible, depending on the product and customization. We cater to both small and bulk orders.

Q5: What certifications do you offer?

A: We are certified with ISO 9001, ISO 14001, and IATF 16949, and comply with FDA, RoHS, and REACH standards. In addition, we hold over 30 patents.

Q6: Do you offer samples? Or other custom service?

A: Yes, samples are always available for your evaluation before formal purchase. And we also offer custom branding and packaging options for bulk orders. Just let us know your requirements first.

Connect directly with the Toper Engineering Team

Millions of O-rings in stock with same day shipping

Thousands of materials available; rubbers, FFKM,FKM,HNBR。

Rapid production of custom parts to meet your specific needs

Describe what you need and we will get back to you ASAP!

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Looking for a quote, engineering assistance, or answers to questions about Toper?

We can help!

Customer Collaborations

We maintain long-term partnerships with customers around the world

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About us

downey@ffkmplus.com

https://www.ffkmplus.com

Customer services

Help Center
Feedback

Sell on downey@ffkmplus.com


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