Ok... In the last days I've been thinking how I should clean the snare drum without scratching the chrome and without using chemicals.
As you may know, I used vinegar to clean small steel parts (check the previous pages in this thread). It is safe, cheap, effective and I use it a lot.
Yesterday I thought I could let the shell stay inside vinegar for 24 hours but it would require many, many bottles... The space inside the shell would be filled with vinegar unnecessarily.
I took two plastic bowls, one big and one small, and a plastic bag. I used them to make a "mould" with the minimum volume possible, closest to the shell. The cardboard was used to reduce the outside volume.
[IMG]http://i1028.photobucket.com/albums/y341/joaojanina/20160706_212958_800_450_zpswb1skdrm.jpg[/IMG]
Yeah, call me crazy... this is was the first test I made.
[IMG]http://i1028.photobucket.com/albums/y341/joaojanina/20160706_213523_800_450_zps1ngnhvh5.jpg[/IMG]
[IMG]http://i1028.photobucket.com/albums/y341/joaojanina/20160706_213714_800_450_zpsqtmrj42f.jpg[/IMG]
Unfortunately I made a small hole in the bag with my nail and the vinegar drained to the big bowl. I end up using a transparent thicker plastic sheet.
[IMG]http://i1028.photobucket.com/albums/y341/joaojanina/20160706_224318_800_450_zpsmenkxoi7.jpg[/IMG]
[IMG]http://i1028.photobucket.com/albums/y341/joaojanina/20160706_224349_800_450_zpsxicrkxo3.jpg[/IMG]
I used 6 bottles (1 Liter each) because the inner bowl wasn't tall enough. The first 3 bottles covered ~75% of the shell and the last 3 covered ~25%. Anyway, in the end I'll keep the vinegar in a jar and use it to clean other parts.
I hope the badge clear coat is hard enough to hold the vinegar acid... I believe it will be ok and the shell will clean up nice!
Please let me know what you think. :)