Electronics
Maximum perfection

Stability and safety for electronic components

Metering and mixing technology for potting electrical and electronic componenets

Electrical and electronic components are used in a large number of products and their reliability has become a matter of course for the end customer – even under extreme ambient conditions. Such conditions may range from impacts and vibrations to dust or moisture or even high temperatures. To ensure reliable operation and correct electrical insulation, the components are potted with liquid compounds. Potting forms a permanent joint with the component and thus protects it against unauthorized intervention. Depending on the potting compound and the specific application, the process is carried out under atmospheric pressure or vacuum. One of the processing challenges faced is to achieve bubble-free potting because entrapped air will lower the insulation and protection capability as well as the mechanical strength of the components.

Intelligent solutions by DOPAG
DOPAG mixing and metering systems enable repeatable high-precision metering. Such metering involves a constant mixing ratio even at varying flow rates in dynamical processes. As seen both from the ecological and economical perspectives, DOPAG metering and mixing systems promote a sustainable production process. The materials to be processed are mixed based on the specific demand which means material consumption and waste disposal costs can be reduced. The use of flushing agents is not required.

Maximum perfection
Most of the potting compounds used in electronics are polymers based on polyurethane (PU), epoxy resin and silicone. Thanks to their high thermal stability and the fact that they can be from soft to extremely hard, e.g. PU cast resins are used for numerous applications such as potting of printed circuit transformers in PCBs. Today, PU cast resins that belong to the class F of the insulation system and show a high thermal stability are increasingly being used for potting electronic components while elastic PU cast resins are being used for automobile electronic systems.

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Christian Ostermann Director Key Market
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In Potting, resins such as silicones, polyurethanes or epoxy resins are used in liquid form. For the production process, DOPAG offers various metering and mixing systems.

  1. eldomix

    eldomix

    The eldomix 100/600 range of systems are compact, solvent free, gear pump driven metering and mixing systems.

  2. vectomix

    vectomix

    Vectomix is used to handle multi component materials. Due to its compatibility and modularity, two vectodis single component piston metering with equal or different sizes are used.

Bonding and sealing is becoming an increasingly popular method of joining components without screws. With DOPAG systems, applications can be realized reliable and precise.

  1. eldomix

    eldomix

    The eldomix 100/600 range of systems are compact, solvent free, gear pump driven metering and mixing systems.

  2. variomix

    variomix

    The variomix range of systems are solvent free, compact, pneumatic or hydraulically driven piston pump metering and mixing systems.

  3. vectodis

    vectodis

    Vectodis is used to handle single component materials. Just a suitable material supply and metering computer is required.

  4. vectomix

    vectomix

    Vectomix is used to handle multi component materials. Due to its compatibility and modularity, two vectodis single component piston metering with equal or different sizes are used.

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