Zytel

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PA66 Zytel® – Premium Performance for a Wide Range of Challenging Applications

PA66 Zytel® from Celanese® delivers a comprehensive selection of polyamide solutions tailored for specific applications:

• Standard and fast-cycle unfilled grades.
• Grades optimised for injection, extrusion and blow moulding.
• Toughened formulations designed for superior impact resistance.
• A diverse range of glass-reinforced (13-50%) and mineral-filled variants.
• Specialised grades approved for food contact and medical applications.
• High-temperature resistant grades performing up to 220°C.
• Grades designed to minimise noise and vibration.
• Electrically optimised variants with organic heat stabilisation.
   

PA66 Zytel®’s high-performance formulations are a top choice for OEMs in industries such as automotive, consumer goods, appliances, fluid management, electric vehicles, and beyond.

Need Enhanced Thermal Resistance? Explore Zytel® Plus!

• Superior resistance to prolonged hot air exposure compared to conventional nylon.
• Capable of withstanding substantially higher temperatures than standard PA66.
• Proven durability with over 3,000 hours of exposure to hot oil and automotive coolant.
• Offers 2-3 times the lifespan of standard PA66 when exposed to harsh chemicals and high temperatures.
• Maintains weld integrity even after 1,000 hours at 210°C.
   

Maximise Impact Resistance with Zytel PA66 Toughened Grades!

For applications requiring flexibility and durability, unfilled toughened grades are ideal for fasteners, cable ties, and similar components, offering:

• Exceptional impact resistance in dynamic and low-temperature conditions.
• Reduced part damage for extended service life.
• Enhanced elongation properties for applications demanding flexibility.
   

Popular toughened PA66 grades include:

• Zytel® MT409AHS – Medium Toughened PA66.
• Zytel® ST801 – Super Toughened PA66.
   

Super Toughened grades boast a Notched Charpy Impact > 40 kJ/m2, providing up to 8 times the impact resistance of standard PA66.

Enhance Strength with Zytel® PA66 Glass-Reinforced Grades!

For applications requiring high tensile strength and rigidity, Zytel® PA66 glass-reinforced grades offer:

• Exceptional stiffness with an elastic modulus of up to 11,000 MPa.
• Long-term thermal stability, enduring temperatures between 170°C and 180°C.
• Excellent resistance to automotive fluids such as engine oil, fuel, and brake fluid.
   

Popular glass-reinforced Zytel PA66 grades include:

• Zytel® 70G13HS1L – PA66 GF13, heat stabilised, lubricated.
• Zytel® 70G30HSLR – PA66 GF30, heat stabilised, lubricated, hydrolysis resistant.
• Zytel® 70G50HSLA – PA66 GF50, heat stabilised, lubricated, high flow.
• Zytel® 70G50HSLR – PA66 GF50, heat stabilised, lubricated, hydrolysis resistant.
   

Optimised fibre dispersion within PA66 ensures strong bonding between the nylon matrix and glass reinforcements, significantly enhancing mechanical properties across diverse environmental conditions.

Zytel® HTN: High-Performance Polyphthalamide for Demanding Applications

Zytel® HTN is a range of polyphthalamide semi-aromatic nylons from Celanese designed for the most demanding applications in transportation, E&E and other industries. Offering superior strength, stiffness, and dimensional stability, Zytel® HTN is engineered to deliver high performance across a wide range of temperatures, chemicals, and moisture conditions. Unlike standard polyamide resins, Zytel® HTN offers exceptional durability and resistance to harsh conditions.

Key properties of Zytel® HTN grades include:

• High-Temperature Performance: Heat Deflection Temperatures up to 285°C, excellent aging resistance.
• Outstanding Strength & Stiffness: Zytel® HTN excels at maintaining strength and stiffness across a broad range of temperatures enabling metal replacement in critical applications.
• Superior Chemical Resistance: Zytel® HTN withstands aggressive chemicals such as glycols, motor transmission oil, and transformer oil, making it ideal for demanding industrial and automotive applications.
• Minimal Moisture Absorption: Compared to conventional nylons, Zytel® HTN absorbs less moisture, leading to excellent dimensional stability and mechanical strength even in very humid conditions and at prolonged high temperatures.
• Electrical & Flammability Performance: Zytel® HTN formulations offer a high CTI (up to 600 V), meet UL94 V-0 standards and have excellent dielectric strength.
• Precision Injection Moulding: Minimized warpage and low thermal expansion.
   

Zytel® HTN is available in a broad range of series, each formulated to optimize specific performance characteristics.

Available Zytel® HTN Series:

• Zytel® HTN42: a PPA resin (PPA*) with renewable content developed for high flow and improved reflow performance, specifically needed in connector applications.
• Zytel® HTN51: a PPA resin (PA6T/XT) offers outstanding retention of properties in moist conditions, as well as best-in-class chemical aging and resistence.
• Zytel® HTN52: a PPA resin (PA6T/66) offers high-flow properties, making it ideal for connectors and coil forms. It demonstrates the highest thermal characteristics available in flame-retardant, non-halogenated, electrically friendly, and food-compliant applications.
• Zytel® HTN53: A high performance polyamide resin (PA*) with high stiffness and toughness at ambient temperature, specifically designed for structural applications.
• Zytel® HTN54: a PPA resin (PA*-I) with high burst pressure and weld line strength properties with good over molding capabilities.
• Zytel® HTN55: a PPA resin (PA*) with improved flow, low warpage, developed for structural applications where good surface appearance is needed in thin sections.
• Zytel® RS HTN59: combines renewable content, great aesthetics (including vivid color options), balanced mechanical properties, and excellent dimensional stability.
• Selar®: an amorphous nylon barrier resin (PA6I/6T) that provides unique oxygen barrier properties when both wet and chilled, making the resin a perfect choice for flavorsensitive refrigerated foods and beverages.
   

These variations make Zytel® HTN suitable for a wide range of applications, including thermostat housings, fuel rails, engine cooling components, SMT connectors, circuit breaker housings, motor armature insulators, HVAC components, power tool gear housings, and valve systems. Whether for automotive, electrical & electronics, industrial & consumer goods, Zytel® HTN offers a proven solution that meets industry standards while providing best-in-class chemical resistance, excellent mechanical, thermal, and electrical properties.