TromboneChat

Hello!

I've seen some trombones with a black inner side of the bell. For ex. the B.A.C. Custom Voyager.

Is this a black lacquer? or there is a way to turn a "regular" bell a black one with other procedures?

It would be for a 3B I have.

Thanks!

There is a black lacquer.

There is also a black oxide treatment for copper and copper alloys (which will need some kind of protective coating afterward). I believe Inderminen used the black oxide treatment for their black bells.

If you decide to try a DIY, watch out. Too thick a coating of a lacquer will dull the sound. Uncontrolled black oxide treatment will reduce the metal thickness.

If you decide this is what you really want, get help from a tech and a professional in these kinds of treatments.

I have seen black lacquered trombones, but I think the BAC trombones have a treatment done to the bell that turns it black. Then they leave the black intact on the inside of the bell, while buffing it off the outside, as far as I can tell. I also have seen trombones they rebuilt that are like that, like this one:

https://www.thebrass-exchange.com/conte ... s-trombone

I'm pretty sure you'd need to completely refinish the bell to have it the way BAC does it.

Thanks Bruce! I'm not gonna try a DIY... jejejeje just wanted to know the different options available.
I think I'd prefer the lacquer option, it seems less harmful for the bell.

tbonesullivan wrote: ↑Tue Feb 14, 2023 7:18 am I have seen black lacquered trombones, but I think the BAC trombones have a treatment done to the bell that turns it black. Then they leave the black intact on the inside of the bell, while buffing it off the outside, as far as I can tell. I also have seen trombones they rebuilt that are like that, like this one:

https://www.thebrass-exchange.com/conte ... s-trombone

I'm pretty sure you'd need to completely refinish the bell to have it the way BAC does it.

That looks pretty nice jajajaja

DIY is easy. Just pay attention to what you’re doing.

https://www.sciencecompany.com/Patina- ... opper.aspx

Cheers,
Andy

elmsandr wrote: ↑Tue Feb 14, 2023 1:11 pm DIY is easy. Just pay attention to what you’re doing.

https://www.sciencecompany.com/Patina- ... opper.aspx

Cheers,
Andy

Wow... I'm gonna take a look but it doesn't seem that easy jajaja

elmsandr wrote: ↑Tue Feb 14, 2023 1:11 pm DIY is easy. Just pay attention to what you’re doing.

https://www.sciencecompany.com/Patina- ... opper.aspx

Cheers,
Andy

Hm…would these work on nickel silver? Asking for a “friend…”