The stainless tape can be purchased at any aircraft supply.   You can also purchase an automotive brand of the stuff from JC Whitney.  My last purchase was from them and the roll will do many blades.   I still have quite a bit left and have covered several sets of blades with the stuff.

  It's easy to work with, can be cut with sizzors, sticks very well and forms quite easily.  I've used it on aircraft props as well as my turbines.  

  Can't live without it !   Lots of other applications for the stuff as well...