PREMIER PBT-225 for metal-to-plastic housing conversions

Parker Chomerics has developed PREMIER PBT-225, a single-pellet, polybutylene terephthalate (PBT)-based, electrically conductive plastic that delivers superior reliability and makes metal-to-plastic housing conversions possible for demanding electronics applications. The principal advantage for customers is that metal-to-plastic conversions not only eliminate 35 per cent of housing weight in comparison with conventional aluminium, but also provide cost reductions of up to 65 per cent through the elimination of secondary operations such as assembly and machining.

PREMIER PBT-225 was developed by Chomerics to provide a more reliable solution to traditional cube (salt and pepper) blend conductive resin systems and deliver a more efficient alternative to metal and non-conductive plastic housings. The polymer matrix is durable against a wide range of application fluids, and offers high operating temperature limits and long-term environmental stability.

Among the applications set to benefit are housings for automotive electronics, motors and sensors, along with connector bodies, infotainment enclosures and handheld devices for military and industrial metering tasks. Life science enclosures, telecoms equipment and IT rack/server components are further target applications.

Importantly, the advanced processing of PBT-225 into a single-pellet composition permits even material dispersion and a tightly controlled conductive material ratio across complex geometries, delivering a matrix of polymer and conductive filler. The inconsistent mix ratio issues associated with multi-pellet blends are therefore eliminated, along with the time required for weighing and mixing. Moreover, improved pellet integrity with no harmful agglomerations helps optimise material conveyance.

With regard to material composition, long stainless steel fibres increase shielding effectiveness, which ranges from 44 to 71dB depending on the frequency. In addition, glass fibre reinforcement helps to enhance mechanical strength. Its tensile strength at break, for example, is 89MPa.

For details about PREMIER PBT-225, visit

Parker Hannifin

Tachbrook Park Drive
Tachbrook Park
CV34 6TU

+44 (0)1926 317878

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