[milandro]

well, it is really minimal

the acid bleed many never ever go any more than it is(or not) there is no way for you to know it.

Acid bleed are a fact of life, sometimes theyare there sometimes they are not, they are not visible at the time the horn is made and finished.

If you “ clean “ the spot where it is you will be left with another sort of defacing , again it will be minimal and you may be able to touch up the lacquer.

But is it worth it?

Probably not. I understand you spent good money but I think you may be better contacting Dawkes to talk about a part refund and then forget about it. It may never be more than this. One day your horn wil have scratches and dings and you will see this thing in perpective. Now this is all you can think about and it is sad, its a beautiful horn.

 

[milandro]

“ few scratches" which I should imagine must be incredibly small if I take the acid bleeding as a measure of defects.

If this horn came in an unopened box the acid bleeding was probably there from the beginning and developed unseen but if the box was opened (hence the “ scratches”) then should have been picked up by the shop.

Yanagisawa is next to perfection when it comes to the way they do things and yet, it can always happen. Again even simply handling you horn you will “ scratch “ it but again they will be your scratches not “ theirs”.

As it is you could , almost invisibly , remove the lacquer in a very very thin strip around the “ rib” and then clean the metal underneath but then the metal would be unprotected so, don’t look at it, it is also on a little visible spot.

 

[milandro]

You may not have seen this ...

Im a technician based in South Africa and its gonna cost me a fortune to send it back to Dawkes to have them send it back to Yanagisawa .

 

[milandro]

That is my fear at the moment because this is the best playing W020 out of 6 that I've tried. Im not too worried if its cosmetic but I've been taught that it is detrimental to the brass's health as it could spread through the whole horn.
If someone could please clarify If this is myth or not cause I'm non the wiser.

It will never spread to the whole horn, it not that acid bleed is like potato blight .

It is tyny droplets of flux or may even be water trapped under the lacquer, which deposited there (and didn’t dry ) in your case it is minimal and may neve ever get any ,more than that. It’s not a disease.

 

[milandro]

but I don’t think that the problem (which, I think is generally very minor ) is not in the lacquer but in the procedure beforehand. Irrespective of the lacquer that anyone uses the bleed is produced by trapped flux or water droplets not by the type o.

Also it is not so that Yamaha is completely acid bleed free, we have reports of acid bleed on Yamaha too.

I have seen acid bleeds an just about any brand , it occasionally happens

 

[milandro]

certainly a badly affected horn such as yours is was and will always be , in any times, strip it of lacquer and clean and perhaps relacquer