Although I've never done it I know it can be done. I think a few strokes over some very fine (1600 grit) sandpaper will do the trick. I'm someone else here will have some good advice.
Bob K is right, I have always used a very fine sand paper, however I used the sand paper
used by Auto Painters which works well on metal and just about lasts forever.
Oscar
Hi SW
I always thought you were supposed to leave some solder on the soldering iron, like a real thin coat
Bruce
Yes, that's right but every now and then I get a bit of corrosion along the edges so I give it a quick swipe and polish it up a bit. The flux in solder can make a mess so between that and some rubbing alcohol it gets nicely cleaned up.
Hot soldering irons can be wiped clean on a wet cellulose sponge. The stand for my fine iron came with both sponge and dish.
True, the copper tip needs to be "tinned" to prevent corrosion even though that always happens, sooner or later.
In a past life, I built fire control systems for commercial and theatrical fireworks F/X.
Some people think that 800 grit is a "fine grade of sandpaper."
To tune up a pyrographic tip, 2 or 3 wipes each side on 1500 or finer is enough. Like honing a gouge.
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