DHDA-7700 BK is a specially formulated thermoplastic compound designed for use as a semiconductive shield in medium voltage cable applications. DHDA-7700 BK was specifically developed utilizing a special acetylene carbon black to provide a supersmooth surface to achieve best in class performance and yielding a more perfect interface between the extruded shield and the insulation.

DHDA-7700 BK is also useful for start-up, shut down, transition, and purging of medium and high voltage (5 kV and higher) power cable semiconductive shield extruders. DHDA-7700 BK is compatible with the DOW ENDURANCE™ HFDA-0800 BK and HFDA-0801 BK supersmooth semiconductive shields and has a high degree of cleanliness required for these applications.