Madeira Conductive Thread 150/250m Spools - Madeira HC40, This conductive thread from Madeira is a high wear resistant and stable thread that has a whole host of applications. A special manufacturing process results in the thread having durable, pure silver plating around every single filament. The silver plating guarantees optimum conductivity, especially vital around contact points. The highly conductive thread, as well as giving this specific technical function, also retains the highly desirable textile characteristics of flexibility, resilience and easy processing. The thread is supplied on a reel of 250m and is a slightly finer thread than the 150m version, ideal for delicate work or conductive gloves. The resistance rating for Madeira HC thread is as follows:98-6099 - Resistance: < 300R Madeira HC40 Conductive Thread 250m Spool