Guys...

Most heat shrink tubing will shrink with heat from a hair dryer. It takes longer, but heck, it beats using an industrial gun and melting wire-insulation, or using the iron and accidentially touching the shrink or wires, and ending up with a hole in it somewhere.

And when in doubt, try it on a bit of scrap. And you can always slip a piece of cardboard behind whatever ya wanna shrink to act as a heat-deflector, to protect other wires. If you're doing a lot, you could even make a small box-like unit (similar to a paint-box) to contain the area to be shrunk...

Me, I make carry-straps & tie-downs from shoe-laces, but the damned nylon was melting as the shrink was activating. Answer: used a cheap Zellers Hair Dryer ($10) If your SO is gonna toss the old one out, or you 'accidentially' drop/damage it, you can always get her a new one ... *grin*

WhiteWolf