Faq II: Equipment & Maintenance:

2.12 Glue

     Recycled blades must be cleaned before they are re-wired.
     Solvents such as acetone can help, but 10 minutes with a utility
     knife (foil) or wire brush (epee) to remove all traces of glue
     residue from the wire groove also works.  New blades sometimes
     require a small amount of cleaning as well, to remove grease and
     grit from the machining process.

     Popular wiring glues include Duco cement, 5-minute epoxy, and
     cyanoacrylate glues (eg. super-glue).  Some fencers have reported
     success using rubber cement and silicone.  Cleaning and gluing
     techniques will vary depending on your choice.  Thin,
     quick-drying glues such as cyanoacrylates are best put down over
     top of the wire as the wire is held in the groove.  If you use a
     thicker glue such as epoxy, you can carefully prepare one surface
     first.  For foil wires, coat the wire in glue, and then gently
     pull it tight and lay it into the groove.  For epees you can
     alternatively lay a bed of glue down before setting the wire in
     the groove, then make a second run of glue over the wire to seal
     it in place.  Top glue the blade, and let it dry while the blade
     is held in a flexed position with the point in the air.

     An acetone bath for cleaning blades can be constructed from a
     length of copper tubing, sealed at one end.  Fill with acetone,
     drop in your blades, and let soak overnight.

     A blade-bowing tool for holding blades flexed while the glue
     dries can be constructed from a length of cord or chain attached
     to some small cups (film cannisters work well).  Place the cups
     over either end of the blade, and the tension of the cord will
     hold the blade bent for as long as you need it.  Alternatively,
     stand the blade up with the point bent under the rim of a counter
     or table.