Re: liquid duct tape
The brush on stuff in a can works, but has a short shelf life after opening. For funky electrical connections the self fusing tape works very well and you can actually trust it to isolate the connection. The liquid stuff is kind of gimmicky and not very reliable. Why stand around and recoat to build up thickness when you can just wrap it and be done with it? The brush on can stuff does work well to repair tool handle covers when fresh though.