Provided is a fiberglass binder composition which comprises maleinized polyenes and a reactive component selected from the group consisting of alkanolamines, polyols, and monomers containing terminal unsaturation. The connector assembly includes a substrate forming a tube extending from a proximal end to a distal end an electrical circuit formed on the substrate, such as etching or printing, where the substrate is optionally non-conductive. A sleeve is slidably disposed over the tubular member distal end such that, when the tubular member is advanced over the positioning member, the tubular member distal end enters the introducer sheath while the sleeve is stopped and slides over the tubular member to expose the tubular member distal end within the introducer sheath. Thus, a dielectric film, which includes an underlying layer with a high dielectric constant and has a large capacitance per unit area, can be obtained.