Conductive plastic enhances fuel resistance

Chomerics has introduced a new version of its Premier conductive-plastic shielding material that offers enhanced fuel resistance and heat-deflection-under-load (HDUL) specifications.

Complementing the existing range of Polycarbonate/ABS-based materials, the new derivative uses a Polyether Imide (PEI) resin and is suitable for use in demanding applications, such as those found in military and aerospace designs.

Premier conductive-plastic shielding materials consist of nickel-plated carbon fibres integrated into an injection-moulded thermoplastic resin, resulting in finished parts with high mechanical strength.

Developed for high-performance EMI shielding and grounding applications, Premier allows greater design freedom and offers total cost-of-ownership savings of up to 65 per cent compared to metal-based shields.

Space and weight savings of 50 to 75 per cent and significant space savings can also be achieved when using the materials.

The high HDUL of PEI-based Premier conductive plastic allows stable performance at temperatures up to 180C (360F) and shielding effectiveness is up to 85dB.

The robust material can be moulded with sections as thin as 2mm, giving a good strength-to-weight ratio.

Complex features and geometries can easily be incorporated into designs.

Having the shielding functionality integrated into a moulded part means that significant cost and process savings can be made, and the need for supplementary processes such as plating, painting and vacuum coating are all alleviated.

Chomerics is able support the design of Premier conductive plastics as a complete solution incorporating additional gaskets and inserts where required.

Premier PEI-based materials are RoHS compliant and have a UL 94 flammability rating of V-0.

Corrosion resistance enhances suitability for long-field-life applications and the material is recyclable in line with WEEE EoVL TCO legislation.

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