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Engineering Materials

Reducing Electro Corrosion

As automotive electronics become more powerful and complex, they generate higher power levels and more heat, increasing the risk of electrical failure and fire. Often, ionic additives, such as inorganic heat stabilizers or red phosphorous flame retardants are used to improve the thermal and flame retardant performance of the plastic components.

As these components degrade, additives can form acids that corrode electrical contacts after prolonged exposure to heat and moisture. This may cause an electronic component to fail or change its characteristics, potentially compromising a key vehicle safety feature, such as a sensor, which may lead to severe consequences for your brand. 


For electrical systems, it is important to choose thermoplastic materials that will not cause corrosion or rely on halide additives or red phosphorous for their thermal and flame retardant capabilities. By limiting halides (<50–100 ppm) in connectors, sensors, ECUs and PCUs, electro corrosion can be avoided. DSM offers a broad portfolio of materials that are halide free, enabling manufacturers to minimize the risk of electrochemical corrosion. 

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  • Reducing the risk of electronic failure in vehicles with halide-free materials

    As automotive electronics become more powerful and complex, they generate higher power levels and more heat, increasing the risk of electrical failure and fire. Some suppliers use ionic additives to improve the thermal and flame retardant performance of the components used. These additives can form acids that corrode electrical contacts after prolonged exposure to heat and moisture, causing an electronic component to fail or change its characteristics, which may compromise a vehicle safety feature, such as a sensor.

  • ForTii® in automotive electronics

    ForTii offers a multi-year track-record in those critical applications. DSM’s ForTii T11 is a durable, high-strength material used for surface mount technology (SMT) connectors, cooling fan brackets, and high voltage connectors in automotive electrical systems.

  • Tech Talk Advanced Materials Forum: Material challenges in new E-Mobility electrical systems

    During this 40-minute Talk, Richard Frissen, Application/Business Development Manager E-Powertrain at DSM Engineering Materials, discusses requirements of EIS e-motors and the material solutions DSM has for e-mobility electrical systems. Abel Pot, Application/Business Development Manager E&E Applications, joins this Talk to discuss material challenges in new E-Mobility electrical systems.

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