1. Optimal tip temperature for cleaning is 300°C-360°C. 2. Rub the tip in the tip refresher. 3. Apply solder to the tip, and clean the tip with the sponge of the soldering iron stand. 4. Apply solder again. You are finished. If wetting capability is not enough, repeat steps 2 & 3.

Removes oxides on tips, re-coats the tip with tin, and restores solder wetting capability.

BS-2: Ammonium phosphate, Tin Powder