[hypoxia]

I’ve used them repairing rodent chewed wiring under the hood of a car (and now have another car to repair similar damage).  They actually work very well.  The low temp solder flows well and provides a solid connection with heat shrink already in place.  They do require more heat than one might imagine, but it’s less than a solder gun or iron will impart. 

I will use them on my next repair tomorrow.  IMHO, the tiny wires (22-24g) on these newer vehicles won’t stand up to the higher heat.

I cannot understand how they insure a fully soldered joint given the fact that that the wires are not necessarily clean or have flux to insure a solid connection.  I have seen so many poor connections that were exposed and visible.  I am really curious about this.  There are other questions such as mechanical etc., but I suppose the glue supplies that.  I have seen some Avionics Companies advertising them which to be honest shocks me since I spent some time in that field.  Does the FAA accept them?