Why waste money on a wire splice that may not be a good-long lasting connection?
It is so easy to make a good Western Union Splice, just strip and tin both wires, twist together, solder and slip heat shrink tubing over the splice.
Ahem, I know what you meant, but the process is flawed.
I've performed your very same process more than
I care to remember especially to wires that are
already connected at one end and you need to
splice them together. That being said:
Cut the heat shrink tubing longer then the spice,
and slide it over one of the wires your going to solder.
Slide it up about 6 inches so it won't shrink up when you
Now after you splice and solder it, slip the heat shrink tubing over
the splice and heat it up.
In general Dean's advice is typically spot on,
this is just a change in the order of the process.
Don't ask me how many times I've thought I was
finished and NUTS, can't put the heat shrink on.
Those times I use 3M 2242 rubber tape.