Engineering Materials

PA6 & PA66 - Akulon®

Our Akulon portfolio covers virtually all possible applications with grades suited to all processing techniques, including extrusion, injection and blow molding.

  • Broad portfolio
  • Global grades with global specifications
  • Backwards integrated and a global manufacturing footprint

Explore Akulon®

From superior impact strength and high heat resistance to excellent flame retardancy, Akulon delivers properties that help you produce greener, lighter and smarter products. Individual grades can vary by region, so please check in the product database for more detailed information and availability in your area. Our standard offering consist of:

  • Unfilled grades
  • Glass reinforced grades
  • Heat stabilized grades
  • Mineral reinforced grades for better dimensional stability
  • Mineral/glass hybrids for all-around stability and strength
  • Flame Retardant portfolio

Our Akulon portfolio covers virtually all possible applications with grades suited to all processing techniques, including extrusion, injection and blow molding. Akulon polyamide 6 & 66 resins represent the best value in all-purpose engineering materials. For molded parts, they offer an an excellent balance of easy design and processing with outstanding mechanical properties over a wide temperature range and in diverse operating environments. 

Akulon® portfolio highlights

Akulon® compound specials

Akulon® for extrusion applications

Akulon polymer grades are available for all main extrusion processes and applications.

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Akulon is ideal for injection molding thanks to its unique combination of short- and long-term low and high temperature properties under various chemical conditions.

Thermal Properties

Temperature considerations

Akulon has a continuous-use temperature of up to 185ºC. In fact, the chart below shows that polyamide 6 delivers better long-term performance at high temperatures than polyamide 66 and should be the preferred material for any application running for extended periods above 150ºC.

With superior end-of-life properties of up to 60%, polyamide 6 can be used at the design stage, either to reduce the amount of material needed, or by extending durability or part life guarantees.

Short-term temperature spikes

Polyamide 66 is preferred where temperatures spike at above 215ºC (the HDT of glass reinforced polyamide 6) but less than 250ºC. For even higher temperatures, a material like our super heat-resistant Stanyl polyamide 46 is ideal, for example, in part fabrication where secondary processing under high temperatures happens, such as soldering in electrical applications.

Hydrolysis critical environments

In hot water environments of 100ºC+ polyamides can suffer from hydrolysis – especially when glycol (as an anti-freeze additive) is found (the rate being determined by the amount of water absorbed). Because polyamide 66 absorbs less than polyamide 6, its performance is slightly better. However, for reinforced materials, higher fill levels in polyamide 6 mean grades that deliver the same performance as a polyamide 66, with a lower level of reinforcement. This offers benefits in terms of stiffness, but disadvantages in terms of part weight and design flexibility.

Low temperatures

Polyamide 6 has better ductility than polyamide 66. At lower temperatures this makes it a tougher material – less impact sensitive, less notch sensitive and with ductile behavior at lower temperatures. The result: Safer parts (less risk of splintering at low temperatures) and lower breakage levels during processing because parts are tougher coming out of the mold. For unmodified grades where lower temperatures are found, polyamide 6 provides the better performance. Typical applications for this low temperature performance are power tools, ski and snowboard bindings, and automotive exterior parts.

Thermal properties

Akulon performs over a wide temperature range. Unfilled and reinforced materials can be used for demanding engineering applications from as low as -40°C (-40°F) to just below the melting point of the polymer: 220°C (428°F) in the case of polyamide 6 and 260°C (500°F) for polyamide 66.

The high crystallinity and melting point of Akulon enables these materials to retain stiffness at elevated temperatures. For critical applications, this ensures better safety margins and enables thinner walls compared to other materials.

When it comes to measuring properties after aging, this is best performed under real conditions in the application itself. For automotive applications where peak temperatures remain under 180°C (356°F), polyamide 6 provides better heat aging resistance and improved security and durability compared to polyamide 66.


Akulon has a full portfolio that provides excellent long- and short-term mechanical properties.

For high mechanical strength Akulon has 50 and 60% glass filled grades in the portfolio. These are suitable for metal replacement where high strength and fatigue are key.

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Akulon has excellent electrical properties and conforms to all global standards.

Flame retardant

The Akulon product line provides a full range of flame-retardant grades

The Akulon portfolio contains both unfilled as well as glass or mineral filled grades, including a halogen free flame retardant portfolio.

Most popular Akulon® grades


Featured applications

Air inlet manifolds

Automotive | Engine Air Intake

Akulon® PA6 allows for light weight (40% lighter) and cost effective solutons as compared to metal; Akulon® PA6 allows for reliable solutions due to its higher heat ageing resistance and its better welding strength in comparison with PA66; Akulon® Ultraflow grades allow for addtional cost effectiveness due to 25% cycle time advantage as compared to standard grades

Structural Reinforcements

Automotive | Body Structural Parts

Akulon® (UltraFlow) PA6 yields up to 50% weight reduction and a NVH advantage versus metal; Akulon® (UltraFlow) PA6 allows for reliable solutions due to its high temperature resistance and due to its good compatibility with the expansion rubber/foam applied on the moulded parts

EV Charging Connectors

Electrical | Connectors

Akulon® PA6 allows for reliable solutions due to good electrical and mechanical properties (especially impact resistance) at low & high temperatures, excellent CTI and arc resistance values, UL94 V2 at 0.75 mm certification; Akulon® PA6 allows for appealing designs due to good surface aesthetics and for colourfull designs due to good colourability with master batches

Miniature Circuit Breakers

Electrical | Electrical Components

Akulon® PA6 allows for reliable solutions due to up to 30% improved electrical endurance compared to conventional materials; Akulon® PA6 allows for more appealing solutions due to enhanced aesthetics; Akulon® PA6 allows for system cost reduction up to 15% compared to thermoset compounds due to potential reduction of wall thicknesses by up to 2/3rd and due to potential part integration possibilities

Residual Current device

Electrical | Power distribution Low Voltage Switchgear

Akulon® PA6 enables reliable solutions due to excellent electrical (excellent short-circuit properties, including residual dielectric strength) and thermo-mechanical endurance compared to conventional materials; Akulon® PA6 offers system cost down opportunities versus thermosets or other Engineering Materials


Electrical | Power distribution

Akulon® PA6 and ForTii® PA4T allow for reliable solutions due to good electrical and thermal endurance; Akulon® PA6 and ForTii® PA4T allow for more design freedom and/or potential system cost reductions due to part integration and thinner wall design and lower profiles possibilities, reduced cycle time with lower production losses

Skibinding Fixations

Consumer goods | Sports & leisure

Akulon® PA6 allows for reliable solutions due to its good mechanical properties (stiffness and toughness) and due to its better surface appearance than PA66; Akulon® PA6 allows for very cost effective solutions

Powertool Housings

Consumer goods | Power tools

Akulon® PA6 allows for light weight and cost effective solutions compared to metals, also as a result of possible part and function integration, easier assembly and longer tool lives; Akulon® PA6 allows for reliable solutions due to its better welding strength and surface appearance than PA66

Chainsaw housings

Consumer goods | Lawn & garden

Akulon® PA6 allows for reliable solutions, since it withstands drop test at –30°C; Akulon® PA6 allows for cost effective solutions, since it is easy to process for both injection- and blow moulding

Contact us for more information

Direct and easy access to our broad portfolio of high-performance plastics: request a quote or order a sample. You can also simply ask us a (technical) question. 

Akulon® RePurposed: the versatile, high performance polyamide, based on recycled resources

At DSM, our strategy includes developing innovative solutions and collaborations that contribute to a circular economy and aligns with the UN Sustainable Development Goals addressing climate change, resource scarcity, waste and pollution. We look beyond society’s current model of take-make-dispose and instead try to mimic nature and the circle of life.

DSM uses discarded fishing nets as the source to produce the recycle-based polyamide AkulonRepurposed. We use the material recovered from discarded fishing nets collected along the coastlines of India, which are treated and upcycled using local labor, before being compounded.


Setting a new standard in high temperature components: DSM's new Stanyl® and Akulon® Diablo

As engine designers are challenged to create smaller, lighter, more powerful systems, DSM is innovating the materials to make it possible. DSM’s Diablo heat resistant technology is making Stanyl PA46 and Akulon PA66 the choice of the world’s leading car brands, by setting the new standard for high temperature components. Let’s talk about creating tomorrow’s engines today. 

More about Akulon

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