I use Vaseline to make the hinges stick free.

1. Put some Vaseline in a small cap of some sort and use your hot air gun to melt it.
2. Fold the hinge back on it's self and carefully dip the barrel of the hinge in the Vaseline.
3. Dip the hinge in water just before you place it on a paper towel.  This will solidify the Vaseline and keep it from migrating to the rest of the hinge.
4. Install your hinges.
                                                     

Will,

Glad you liked the idea.  I can't remember where I picked up the technique as it was so long ago.  Back when the hinges first came out or shortly after.

If I could find some way to dye or color the Vaseline it would make the task even easier as you could readily spot a slip up. (no pun intended)

Ever notice how thing have a habit of moving to places you don't want them?  Sort of like having pancakes for breakfast.  No matter how hard you try to keep the syrup off your hands, it has the habit of climbing right up the fork and getting you any way.   

You talking about my hinge dipper.. It's just a scrap piece of aluminum I machined with a 1/8 end mill and a coffee cup warmer.

I just dip and lay on a paper towel to cool, by the time the hinge hits the towel the vaseline is fairly solid and any excess is asorbed by the towel.

The vaseline isn't necessarily for lubrication as much as it provides a blocker for whatever you use to glue the hinges in. It keeps epoxy or whatever out of the barrel and insures the hinges won't get stiff from glue in the wrong places.