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Trumpet Discussion Discuss Scratched Brass in the General forums; Originally Posted by Brekelefuw DON'T USE AMMONIA ON BRASS. Ammonia weakens the structure of brass and can cause it to ...
  1. #11
    Utimate User tedh1951's Avatar
    Join Date
    Oct 2007
    The Wide Brown Land

    Re: Scratched Brass

    Quote Originally Posted by Brekelefuw View Post
    Ammonia weakens the structure of brass and can cause it to crack. Season cracking - Wikipedia, the free encyclopedia

    I use a brass scratch brush on a bench motor to scratch brush horns. You can buy them from hardware stores or repair tool suppliers. Very easy to get a flawless finish.
    I also cover the horn in Sunlight dishwashing liquid when scratch brushing. It seems to help with the finish.

    The pre-lacquering word for prepping a horn is 'De-greasing'
    You may find that loading the wire buff with Sunlight Laundry soap (a cake of laundry soap) will take the harshness off the brass. Be VERY VERY careful of powered wire wheels, they can so easily pick up the job and slam it into either the operator or the bench - either outcome could be tragic - I repeat, be CAREFUL.

    Harrelson Bravura
    Getzen Eterna Classic 900
    Getzen Eterna II 700S
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  2. #12
    Forte User edfitzvb's Avatar
    Join Date
    Jun 2008
    Woodlawn, VA

    Re: Scratched Brass

    AMEN. Been there
    Ed Fitzgerald
    1954 Olds Super w/Bach 43 uptilt bell Frankenhorn
    1968 Olds Recording Trumpet
    1965 Bach Stradivarius Model 37
    Yamaha Xeno Chicago Artist C Trumpet
    1956 Conn 80A Cornet
    1951 Olds Special Cornet
    1965 Olds L-12 Flugelhorn

    "Hindsight is always 20-20"

    "I'd rather have it and not need it than need it and not have it"

  3. #13
    New Friend
    Join Date
    Jan 2013

    Re: Scratched Brass

    I'm done

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