Agree with everything above.
This is really quite common in modern lacquered horns (vintage, as well).
If the bleed is beneath the lacq (as opposed to say, 'spot staining' which has happened when moisture contacted an unlacquered area of the horn), then there is only one way to get those stains off.
You have to abrade off the lacquer to get to the rot/stain beneath it. IT can then be removed (via either a chem bath or sonic bath - which would require pad removal...or using a hardware-store purchased polish such as Brasso, Wenol Maas, etc...and good amount of elbow grease).
If the stains are 'spot stains' where, in fact, the lacq wore away...then it's an easier proposition because all you gotta do is go with the paste polish (repeated application).
For acid bleed beneath the lacq, most owners decide they do NOT wanna have the lacq abraded off to remove the spots, so they just leave it.
This is the downside of lacquer finish....it wears, and sometimes there's acid bleed....
This is really quite common in modern lacquered horns (vintage, as well).
If the bleed is beneath the lacq (as opposed to say, 'spot staining' which has happened when moisture contacted an unlacquered area of the horn), then there is only one way to get those stains off.
You have to abrade off the lacquer to get to the rot/stain beneath it. IT can then be removed (via either a chem bath or sonic bath - which would require pad removal...or using a hardware-store purchased polish such as Brasso, Wenol Maas, etc...and good amount of elbow grease).
If the stains are 'spot stains' where, in fact, the lacq wore away...then it's an easier proposition because all you gotta do is go with the paste polish (repeated application).
For acid bleed beneath the lacq, most owners decide they do NOT wanna have the lacq abraded off to remove the spots, so they just leave it.
This is the downside of lacquer finish....it wears, and sometimes there's acid bleed....
