Anyone ever use EZ Line for wire or aircraft antenna?
All the time. I use it for antennas and simple rigging on aircraft and modern ship antennas and lines all the time. However, I build a lot of biplanes and I don't recommend it for extensive interplane rigging or for sailing ships. Like many synthetic products, it can degrade over time, and chemicals and temperature can have adverse effects on it. I've seen it fray and thin out in some places, depending on how it's fastened, tied or treated. Various paints and chemicals can attack, "thin" or harden EZ line over time causing it to split, separate or droop. I generally use it for "single line" applications for antennas, since these items can be easily replaced or "maintained" if they start to degrade for any reason. For lasting applications or where strength is required, I use 2lb (1/72 Scale) and 4 lb (1/48 and larger) test "Chameleon" brown fishing leader or invisible thread for biplane rigging. For model sailing ships I use waxed thread of varing thickness. As in anything else, EZ line has applications in modeling, but it's not a single solution for all applications. Berkshire Industries pionnered the use of this latex thread as telegraph wire for model railroads years ago, but its primary use was as a weave of stretchable fabric used in clothing.