1. Solvent Bonding
Some Bondcoats can be activated by the application of certain solvents during or after coil winding. The solvent may be applied to the wire via a wick during the winding operation or the finished coils may be dipped in a bath of solvent after the winding process. In either case, the unit should be heated again to drive off residual solvent and to complete the bonding of coils.
2. Heat - Oven Bonding
After the coils are formed, the unit is heated in an oven, causing the bondcoat to flow, bonding the adjacent turns of wire together.
3. Heat - Resistance Bonding
Resistance heating in similar to oven heating, except that passing current through the formed coils supplies heat. Time, voltage and current are all unique to each application.