Nylon 6/66
Nylon 6/66 (CAS: 24993-04-2), chemically identified as Poly(hexamethylene adipamide-co-caprolactam), is a versatile thermoplastic polyamide. This material offers excellent mechanical properties, including good hardness and thermal resistance. It is widely employed as a general-purpose engineering thermoplastic for applications ranging from fibers used in textiles and sutures to robust components in tools and appliances such as bearings, cams, gears, and casings.
- IUPAC
- Poly(hexamethylene adipamide-co-caprolactam)

Textile Fibers and Sutures
Nylon 6/66 is utilized for producing strong and durable fibers suitable for textiles. It also finds application in the medical field for sutures due to its biocompatibility and tensile strength.
Cable Sheathing and Tubing
The material's toughness and resistance to abrasion make it an ideal choice for manufacturing protective cable sheathing and flexible tubing in various industrial settings.
Mechanical Components
Its mechanical integrity, including good hardness values, allows for its use in crafting essential components like bearings, cams, and gears for tools and appliances, ensuring longevity and performance.
Casings for Tools and Appliances
The polymer serves as a durable housing material for various tools and household appliances, offering protection and a robust external structure.
| Linear formula | (C18H37N3O5)n |
|---|---|
| Density | 1.3 g/mL at 25 °C(lit.) |
| Solubility | strong proton donor solvents, acetic acid and phenols: soluble |
| Contains / stabiliser | heat stabilizer, nucleating agent and lubricant |
| Application | General purpose thermoplastic polyamide.Fibers for textiles, brushes and sutures cable sheathing and tubing and bearings, cams, gears and casings for tools and appliances. |
| Melting point | 250-260 °C(lit.) |
| Transition Temp | Tm 250 °C (ASTM D 2117) |
|---|---|
| Hardness | 100 (Rockwell R, ASTM D 785, 50% RH)122 (Rockwell R, ASTM D 785, DAM) |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Nylon 6/66 used for?
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Nylon 6/66 is a general-purpose thermoplastic polyamide used for fibers in textiles, brushes, sutures, cable sheathing, tubing, and mechanical components like bearings, cams, gears, and casings for tools and appliances.
What is the CAS number and chemical formula for Nylon 6/66?
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The CAS number for Nylon 6/66 is 24993-04-2. Its linear formula is (C18H37N3O5)n, and it is chemically identified as Poly(hexamethylene adipamide-co-caprolactam).
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Nylon 6/66, typically as a technical or research grade material. We do not represent this product as USP, BP, or EP grade unless explicitly stated in the product documentation. Please refer to the specification sheet for detailed purity information.
How should Nylon 6/66 be handled and stored?
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Handle Nylon 6/66 with appropriate personal protective equipment. Store in a cool, dry place away from incompatible materials. Refer to the Safety Data Sheet (SDS) for detailed handling and safety information, noting its WGK Germany classification of 3.
How is Nylon 6/66 packed, shipped, and exported?
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Nylon 6/66 is carefully packed to ensure product integrity during transit. Tech Serve Solutions offers global export services, adhering to all international shipping regulations for chemical compounds.
How can I request a sample or quote for Nylon 6/66?
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To request a sample or a quote for Nylon 6/66, please contact our sales department via the website or direct inquiry, providing your specific requirements.
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