Nylon 66
- Product Name: Nylon 66
- Chemical Name (IUPAC): Poly(hexane-1,6-diyladipamide)
- CAS No.: 32131-17-2
- Chemical Formula: (C12H22N2O2)n
- Form/Physical State: Solid
- Factroy Site: No.1788, Development Road, Ruian Economic Development Zone, Ruian, Wenzhou, Zhejiang
- Price Inquiry: sales3@ascent-chem.com
- Manufacturer: Huafon Group Co., Ltd
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- Nylon 66 is typically used in formulations when high mechanical strength and thermal stability and moisture absorption must be controlled within specific ranges.
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HS Code |
312531 |
| Chemical Formula | (C12H22N2O2)n |
| Density G Per Cm3 | 1.14 |
| Melting Point C | 255-265 |
| Glass Transition Temperature C | 40-60 |
| Tensile Strength Mpa | 80-90 |
| Youngs Modulus Gpa | 2.6-3.0 |
| Elongation At Break Percent | 60-80 |
| Water Absorption Percent | 2.5-2.8 |
| Flammability | Combustible, self-extinguishing |
| Electrical Resistivity Ohm Cm | 1 × 10^12 |
| Hardness Shore D | 80-85 |
| Impact Strength Kj Per M2 | 5-9 |
As an accredited Nylon 66 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Nylon 66 is packaged in 25 kg moisture-resistant, heat-sealed polyethylene bags, printed with product name, grade, lot number, and manufacturer. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for Nylon 66: Typically accommodates 20-22 metric tons packed in bags or pallets, ensuring safe, efficient transport. |
| Shipping | Nylon 66 is typically shipped in pellet, powder, or resin form, packaged in moisture-resistant bags or drums. It should be transported in a dry, clean environment to prevent contamination or moisture absorption. Nylon 66 is not classified as hazardous, but standard safety and handling procedures should be followed during shipping. |
| Storage | Nylon 66 should be stored in a cool, dry, well-ventilated area away from direct sunlight and sources of heat. It should be kept in tightly sealed containers to prevent moisture absorption, as humidity can affect its properties. Avoid contact with strong acids, bases, and oxidizing agents. Use dedicated, labeled storage areas to prevent contamination and ensure safety. |
| Shelf Life | Nylon 66 typically has an unlimited shelf life if stored properly, away from moisture, heat, and direct sunlight in sealed containers. |
Applications of Nylon 66 in Industrial ManufacturingNylon 66 plays a vital role in high-specification industrial sectors. Its superior mechanical strength, thermal resistance, and consistent molding performance drive demand across several advanced manufacturing fields. The following sections explain major downstream applications, including regulatory standards, practical dosage, integration into customer processes, and real product outcomes. 1. Automotive Engineering ComponentsLeading automotive suppliers apply this raw material for critical under-the-hood and structural parts. Its inherent resistance to wear, fuels, and thermal fatigue ensures dimensional stability in complex molded parts. Advanced additives, controlled viscosity, and strict impurity management are required to meet OEM and tier-one supplier criteria. Material choice impacts part solderability, painting, and assembly. Industry compliance standards
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2. Electrical & Electronics ComponentsProducers of precision connectors, circuit insulators, and cable glands require consistent dielectric and tracking resistance. This material’s performance at elevated temperatures under electrical load ensures compliance with global electronics reliability standards. Compounding with flame retardants or colorants adjusts properties as circuit designs evolve. Industry compliance standards
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3. Industrial Textile Yarns & MonofilamentsTextile manufacturers use this polymer in high-tenacity applications such as conveyor belts, tire cords, and specialty fabrics. Precise melt viscosity, molecular weight distribution, and low extractable content support spinning uniformity and dyeability. These factors are critical for mechanical performance and continuous weaving uptime. Industry compliance standards
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4. Consumer Appliance Structural PartsAppliance manufacturers require this engineering polymer for load-bearing, structurally critical zones in washing machines, dishwashers, and cooking equipment. Controlled crystallinity, hydrolysis resistance, and process consistency ensure long part lifespans even in high-humidity or detergent-exposure environments. Industry compliance standards
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5. Industrial Fasteners & GearsFastener and gear manufacturers rely on this material’s fatigue resistance and dimensional consistency across high-cavitation molding operations. Its self-lubricating properties and chemical resistance reduce maintenance in long-service mechanical systems. Lubricant additives and glass fiber content can support new gear profiles and noise-reduction specifications. Industry compliance standards
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6. Oil & Gas Pipe Linings and TubularsEnergy sector manufacturers use this polymer for corrosion-resistant pipe liners and flexible risers. High molecular weight and specialized stabilization packages inhibit oxidative and hydrolytic degradation during continuous fluid exposure and at elevated temperatures found in pipeline environments. Industry compliance standards
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Competitive Nylon 66 prices that fit your budget—flexible terms and customized quotes for every order.
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- Nylon 66 is manufactured under an ISO 9001 quality system and complies with relevant regulatory requirements.
- COA, SDS/MSDS, and related certificates are available upon request. For certificate requests or inquiries, contact: sales3@ascent-chem.com.
Nylon 66: Consistent Performance in Engineering Applications
Understanding Nylon 66 From the Manufacturer’s Viewpoint
Nylon 66 stems from hexamethylene diamine and adipic acid, a pairing our production teams handle every day. These two raw materials react under controlled pressure and temperature, and the strength of this bond forms the backbone of Nylon 66’s reputation. In our manufacturing halls, the difference between Nylon 66 and other nylons begins in this specific pairing. The structure puts 6 carbon atoms on each side of the polymer chain, which does more than set it apart from Nylon 6; it consistently shapes its thermal and mechanical reliability. Other polyamides can’t match the abrasion resistance or the stable performance at raised temperatures that Nylon 66 brings, especially over extended periods. We see it each time a customer pushes one of our grades into demanding components.
Why Engineers Tend to Favor Nylon 66
Every manufacturer wants reliable parts that last. In thousands of sites where our Nylon 66 ends up, engineers bank on toughness over a wide range of operating conditions. Its melting point, just above 260 °C, sits higher than that of many competing nylons—the difference can be the margin that prevents deformation during a critical job. Over years of trials, we have tracked that parts molded from our compounds keep their dimensions better and fight off fatigue cracking, even in punishing climates. This is what sets Nylon 66 apart when customers demand more than generic strength—they want confidence.
End-Use Applications Our Clients Count On
Nylon 66 appears in manufactured parts for many industries, including automotive, electronics, textiles, industrial machinery, home goods, and consumer devices. Our materials go into automotive air intake manifolds, radiator end tanks, electrical connectors, high-performance gears, and appliance housings. In our own facilities, we’ve seen customers choose Nylon 66 for automotive fasteners, cable ties strong enough for outdoor use, and in housings that need to hold tight tolerances under load and heat. The fiber grades spin into tire cords and technical textiles, where tenacity and fatigue resistance drive safety and function.
Some industries have turned to our reinforced or flame-retardant variants to push performance even further. We help guide that selection with data from in-house tests. Glass fiber reinforced Nylon 66 delivers stiffness far beyond unfilled grades. Its strength helps replace metal in parts to shed weight without surrendering mechanical integrity, supporting the trend toward lighter, more efficient assemblies.
Nylon 66 Compared to Other Nylons
In practice, Nylon 66 differs from Nylon 6 and other polyamides beyond just the molecular chain. We run parallel production lines for both Nylon 6 and 66 and monitor the subtle property shifts in each batch. Nylon 66 provides lower moisture absorption, which translates into greater electrical insulation and shape stability. Per customer trials, molded articles retain their form and dimensions when exposed to humid, hot environments since the water uptake stays lower than that of Nylon 6. This reduced water absorption supports repeated mechanical loads—especially crucial for gear wheels, bearing cages, switches, and sockets where deformation causes failure.
Mechanical durability separates Nylon 66 even further. Its crystalline structure forms more orderly, giving it increased abrasion and creep resistance. Molded teeth on gears keep their definition after cycles under load, and sliding bushings outlast alternative polymers. Long-term exposure to lubricants or automotive fluids rarely leads to rapid aging, something we see validated through real-world teardown reports from our downstream clients.
Specific Grades for Targeted Outcomes
Over the decades, we have broadened the Nylon 66 portfolio based on ongoing lab trials and customer feedback. Standard injection molding grades anchor the lineup and provide a reliable baseline for functional components, from covers to brackets. High viscosity extrusion grades help make thicker sheets, tubes, and profiles, or draw into monofilaments for industrial uses.
Glass-filled grades attract engineers who need higher modulus or improved dimensional rigidity for technical parts. Whenever the automotive industry began shifting structural brackets from metal to lighter polymers, these reinforced products drew the most interest. Flame-retardant Nylon 66 grades serve electrical applications, supporting wire connectors, fuse blocks, and circuit breaker housings. These formulations meet strict regulatory standards and ensure flame resistance without sacrificing basic mechanical performance.
For the apparel sector, we supply spinning and textile grades, producing fiber with high strength and elasticity for garment use. Tire manufacturers lean on high-tenacity Nylon 66 yarn for reinforcement due to its resilience under constant flex and compressive force. In every case, our materials stand up to repeated customer audits, third-party testing, and long-term reliability studies.
Processing in Real Manufacturing
Nylon 66 comes as white or off-white granules or pellets suited for direct melting. Unlike some crystalline plastics, its wide process window simplifies mold filling and allows for faster cycle times. We work with clients to dial in processing conditions and advise on needed drying equipment to prevent surface blemishes, voids, or bubbling.
It stands out for its melt flow control, producing sharp, consistent molded features. Strong intermolecular bonds mean processors reach for higher melt and mold temperatures. Our experience tells us that molders need to control moisture at every step: a few hours outside tightly-sealed containers can pick up enough ambient humidity to cause hydrolysis. That’s why we run extensive packaging tests and offer guidance on resin storage practices so customers get reliable production—batch after batch.
Testing and Quality—What We’ve Learned Through Practice
Dimensional checks, tensile and impact tests, and aging simulations fill our laboratories. We oversee every step, from resin synthesis to compounding and pelletizing. Each grade of Nylon 66 leaves our lines only after meeting intensive internal standards, as well as the precise property benchmarks set by customers and regulatory bodies. Working directly with component manufacturers gives insight into real field failures, and we trace those lessons back into our own product development.
Thermal cycling, UV exposure, and prolonged chemical immersion have all shaped the evolution of our Nylon 66 product line. Through exposure and failure analysis, we have learned which compounds endure the long haul, which hold up to chemical drips in engine compartments, and which maintain electrical performance under voltage stress. In all cases, our data supports a clear pattern: Nylon 66 stands among the most dependable engineering plastics for mission-critical parts.
Environmental Responsibility and Evolving Needs
The chemical industry faces growing pressures to manage environmental impact. In our factories, we reduce waste streams, invest in closed-loop water systems, and track emissions at each process stage. Many of our production lines incorporate feedstock recovery, ensuring we reclaim offcuts and defective batches, prevent landfilling, and blend those back into approved structured recycling channels.
Nylon 66, as a high-performance engineering resin, extends component life and reduces replacements in the field. Longevity creates real downstream sustainability. More industries demand formulations using post-industrial or post-consumer recycled content. We’ve scaled up lines to integrate recycled hexamethylene diamine and adipic acid without compromising core mechanical properties or appearance criteria. It is an ongoing project that adapts as new guidelines and collection programs spread, but real-world progress has already become visible—especially in sectors like automotive and consumer appliances.
Challenges in Growing Demand and Material Supply
Rising demand has strained global raw materials. Adipic acid and diamine sourcing presents cycles of tightness, spikes in feedstock costs, and sudden geoeconomic shifts. We saw this most clearly during recent years, navigating shortages from both supply bottlenecks and energy market swings. Production costs jumped as energy prices soared across Asia, Europe, and the Americas—our buyers felt the pinch, and so did we.
Our response centers on localizing supply chains, developing backup routes for critical intermediates, and deepening partnerships with trusted suppliers. We drive efficiency in polymerization and develop catalyst systems to lower energy consumption in the process. None of this happens overnight, but our technical teams break bottlenecks down to their sources and work upstream to secure steady, predictable resin flow for downstream molding houses. These behind-the-scenes efforts rarely make headlines, yet they protect the end customer from sudden shortages and price shocks.
Regulatory Pressures and Customer Audits
Each product batch must comply with a web of international, regional, and industry-specific regulations. Our technical teams engage with evolving REACH, RoHS, and automotive standards, and support regular customer audits. They scrutinize everything from chemical composition to manufacturing traceability. Detailed tracking ensures that each resin lot, once polymerized, remains traceable through compounding to the customer delivery—no shortcuts, no ambiguities.
Clients demand transparency in all aspects, ranging from ingredient lists to carbon footprint declarations. Our on-site labs run routine heavy metal and volatile organic compound checks, furnishing compliance sheets and third-party certificates on demand. This rigorous regime responds to growing requirements for sustainable, safe, and fully documented engineering plastics—and keeps trust strong between manufacturer and user.
Reinforcing Partnerships with Technical Support
Our history with Nylon 66 has always involved close consultation. New applications, high-performance needs, or shifting part geometries usually bring both opportunity and technical headaches. We work hands-on with molding engineers to fine-tune cycle times, address warping or shrink marks, and tweak formulations when a challenging project runs up against the limits of earlier resin models. As a result, we support robust product launches and sustained production runs, drawing on decades of lessons from shop floors across the manufacturing spectrum.
Technical service builds lasting relationships. It isn’t just about moving commodity resin; it’s about seeing real-world performance hold up—batch after batch, year after year. When a customer’s line goes down or a specification tightens, we’re there to cut through the noise and isolate the cause. Sometimes it’s a mere process adjustment; sometimes it means pulling new grades from the development pipeline and tailoring them for unique demands. These processes keep us at the core of our customers’ manufacturing success.
Looking Ahead: Nylon 66 in the Next Generation of Products
Modern engineering trends favor lighter, stronger, safer, and more energy-efficient solutions. Nylon 66 fits this vision by combining high temperature tolerance, chemical resilience, and durable mechanical properties. Designers and engineers now look for more functional integration within molded parts, increasing the need for material flexibility. We see Nylon 66 enabling robust living hinges, snap fits, and weld lines that resist splitting under load.
The automotive move toward electrification increases requirements for flame retardancy, electrical isolation, and lightweight housings. Similarly, electronics manufacturers press for resins that survive small-form-factor, thermally dense device designs. Our materials development labs keep tuning the balance between strength, processability, and safety, introducing new flame retardant and low-outgassing grades that address evolving standards.
Innovation also means greater circularity: We have invested in polymer upcycling research and support industry alliances to increase recycled content, driving both environmental compliance and economic sustainability. Every year brings new feedback from fabricators, tier suppliers, and end users that refines how we build our Nylon 66 offering—an ongoing cycle of real improvement, built through practical production experience and customer collaboration.
Nylon 66 has earned its place in demanding engineering sectors. It remains a critical resin in our product catalog, one that our teams have refined, tested, and delivered on every continent. While new challenges and opportunities will shape its story, the fundamental promise—consistent quality, long-term durability, and strong technical backup—remains unchanged.
