Rick Denney wrote:If perhaps Chuck G can remind us of the chemical that dissolves silver oxide, I think you could probably pour that on cotton wadding and have your own silver-specific NevR-Dull. Rick "who was not a star student in chemistry" Denney
I'm not Chuck G but I'm sure he'll agree. The product that disolves silver oxide is 'Tarn-X'. The active ingredient is phosphoric acid. I've used it but it's very difficult to apply to an area the size of tuba. It makes a streaky mess that still has to be polished. Here's the MSDS... http://www.stonergroup.com/msds/Jel-Mar ... nx%20msds'
Dan Schultz
"The Village Tinker" http://www.thevillagetinker.com" target="_blank
Current 'stable'... Rudolf Meinl 5/4, Marzan (by Willson) euph, King 2341, Alphorn, and other strange stuff.
ThomasDodd wrote:
Are you saying NevR-Dull is more course/agressive than Brasso?
That's the way it reads, but I know that's can't be the case. NevR-Dull is not abrasive, but brasso surely is.
I'll have to look again, I haven't used it recently and they could have changed the formula...but from what I remember, Nevr Dull is somekind of a fibrous stuff soaking in a chemical. It almost has the consistency a fine steel wool. Brasso is a very fine abrasive (1000 grit+) in a petroleum based solvent. It IS aggressive but I thought Nevr Dull was way coarser. I could be wrong
1972 Cerveny 601
1920’s Conn 28J
Bunch-a-bones
To double pedal! And beyond!
tubarnak wrote:Brasso is a very fine abrasive (1000 grit+) in a petroleum based solvent.
Ahhh yessss.... the mere mention of 'Brasso' brings back fond memories of when I was serving in the Navy in the 60's. The hours of rubbing cheesy belt buckles to remove the lacquer to replace the shine with a SHINE! The smoking lamp is lit
Doc... don't get excited just 'cause I said "cheesy" It's got nuttin to do with food
Dan Schultz
"The Village Tinker" http://www.thevillagetinker.com" target="_blank
Current 'stable'... Rudolf Meinl 5/4, Marzan (by Willson) euph, King 2341, Alphorn, and other strange stuff.
Uncle Buck wrote:Does anyone have any thoughts about whether this method would be advisable for removing tarnish from a silver-plated tuba?
I'm sure it'd work fine. But you need to completly submerge the tuba, after lining the tub. Not all tubs are big enough to hold a big tuba.You have to remove all the non metal parts first, corks and felts come to mind. And you have to rinse in a different location.
I seam to remember the reaction moves the tarnish to the foil.
That's done every day in alot of repair shops...
for flutes and silver keys
You'd need a heckuvalot of baking soda - or Kalgonite - to catalyze the reaction plus the more water you have, the weaker the reaction.
On the other hand, I'd love to see it work!
1972 Cerveny 601
1920’s Conn 28J
Bunch-a-bones
To double pedal! And beyond!
tubarnak wrote:Nevr Dull is somekind of a fibrous stuff soaking in a chemical
The fibrous stuff is just cotton wadding, which is not abrasive by itself, but it can sure hold abrasive stuff, just like cotton webbing for ragging out the small tubes. But that requires the addition of the abrasive (a polish).
Rick "who would use NevR Dull in a heartbeast before Brasso" Denney
It's got nuttin to do with food 
