What's the worst that can happen?

[imperialbari]

.

[UDELBR]

Annealing only happens +500C in brass, so your hair dryer ain't gonna do it. Don't know what that guys on about.

Edit: I guess he didn't either.

[djwesp]

I'm thinking of removing some dents by first warming with a hair-dryer, then cooling with carbon dioxide ice.
People have warned me not to do it.
But what is the worst that can happen?
Does the lacquer peel off, the dent get worse, the horn burst into flames or what?
Or will I just be wasting my time and money.
Anybody tried this?

SHHH! Don't tell anyone, but this works!

1. Buy DRY ICE (not the air dusters turned upside down).
2. Split ice into 1 pound chunks, usually about a dollar a pound.
3. Buy VERY GOOD thermal gloves, then apply chemical grade rubbber/synthetic gloves over them.
4. Heat area with hair dryer, only for a few seconds (DO NOT GET THE SURFACE HOT ENOUGH TO MELT COATING)
5. Wait approximately 5 seconds apply tip of dry ice to center point of dent.
6. Using a swirling motion slowly move dry ice tip outwards from center point in a circular motion (so looks like a spiral towards the center.
7. Use this motion back and forth from center for approximately 3 minutes.
8. Ignore popping and creaking as this is normal.
9. After the time has elapsed remove ice, then DO NOT TOUCH until it has returned to room temperature.
10. Using a gentle cami cloth, remove condensation and check for dent remnants.


I have personaly done this on raw brass instruments. HOWEVER, I have only SEEN it done on laquer and silver. i would be very weary of performing this on those instruments unless I was for sure it wouldn't mess with it!


Wes "not sure of the effects this may have on the material, long term, and sure he will probably get torched by the repairmen on the site" pendergrass

[Carroll]

Wes "not sure of the effects this may have on the material, long term, and sure he will probably get torched by the repairmen on the site" pendergrass[/quote]

Nah, just "hair-dryered"

[djwesp]

That was witty... darned witty!