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Flame-retardant Products

A sustainable future needs safe innovations

Due to increasing safety requirements and new future-proof technologies in the fields of E & E, E-Mobility and Public Transportation, flame retardant materials gain more and more importance. AKRO-PLASTIC GmbH supports the markets with a customized portfolio of flame retardant products with the latest technologies.

Flame retardant grades are often used in electronic equipment. Therefore, it helps if special attention is paid to electro-chemical corrosion. All flame retardant materials of AKRO-PLASTIC GmbH are completely free of halogen containing heat stabilizers or flame retardants and red phosphorus. This results in high CTIs for each grade. It allows solutions that avoid corrosion on micro-processors due to unfavorable heat stabilizers.

The ICX® Technology (innovative compounding and extrusion technology), jointly developed with the mechanical engineering and sister company FEDDEM GmbH & Co. KG, contributes to ensuring a consistently high quality. This quality is the same in all global plant locations.


Product Characterisation

Every application has its own characteristic and demands on the raw material. Because of this the portfolio of AKRO-PLASTIC is divided into three different parts: Unreinforced, reinforced and high performance.

Unreinforced flame retardant grades are the best solution for components where thin parts take on an important task of the application, for example film hinges. AKROMID® C3 1 FR (4163) is optimized for an excellent flow ensuring a good flow through these thin areas during production. If optimization of costs is a significant part of the project AKROMID® B3 1 FR (6437) is a good solution. Both materials provide a Yellow-Card and are suitable for parts where UL94-V-0 is required. For applications where V-2 is required – for example cable glands – AKROMID® B3 HU natural (7455) with its Yellow Card from 0.8 mm is a cost effective alternative.


For applications with high demands on mechanical properties glass fiber reinforced flame retardant polyamides are favorised, mostly with 25 or 30 % of glass fibers. Unfortunately flame retardants lower the mechanical properties of the compound.

With our long experience in highly reinforced materials and our gentle treatment of the glass fibers during processing we are able to produce flame retardant materials with higher mechanical properties than our competition. All materials are listed at UL providing V-0 and a CTI of > 600V.


The flame retardant and heat stabilized compound AKROMID® C3 GF 25 1 FR, especially developed for components in the high voltage range (HV connectors, busbars or housings), is listed according to UL94 in all-colors, incl. RTI listing. AKROMID® C3 GF 25 1 FR orange (7854) similar to RAL 2003 shows good color stability under heat. 

More information can be found here.

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AKROTEK® PK-VM GF 30 FR orange (8537) is a Polyketone with 30% glass-fibers and flame retardant free of halogens similar to RAL 2003. This grade meets the highest requirements for flammability such as UL94 V0 at 0,8 and electrical properties such as CTI of 600 V. This grade is optimized to the requirements of larger processing windows. Engineered for injection moulding this material can also be 3D-printed using pellet extrusion in large scale additive manufacturing. Read more about the Polyketone here

For highend parts which need very high mechanical properties and outstanding dimensional stability AKRO-PLASTIC offers different flame retardant grades based on special polyamide raw materials.

High mechanical properties at room temperature, low moisture uptake and excellent surface – these requirements are perfectly combined by AKROLOY® PARA GF 35 FR (7496). With a tensile modulus of 14500 MPa and a tensile strength of 200 MPa this material offers more freedom to design mechanically stressed, flame retardant parts.

Improved compounds for flame-retardant products



Flammability Tests

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V0 - reinforced

Disclaimer: All specifications and information given on this website are based on our current knowledge and experience. A legally binding promise of certain characteristics or suitability for a concrete individual case cannot be derived from this information. The information supplied here is not intended to release processors and users from the responsibility of carrying out their own tests and inspections in each concrete individual case. AKROMID®, AKROLEN®, AKROLOY®, AKROTEK®, ICX®, PRECITE® and DIA(hr)LOG® are registered trademarks of AKRO-PLASTIC GmbH.

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