Advertising and Web Hosting on Woodwind.Org!

Woodwind.OrgThe Oboe BBoardThe C4 standard

 New Topic  |  Go to Top  |  Go to Topic  |  Search  |  Help/Rules  |  Smileys/Notes  |  Log In   Newer Topic  |  Older Topic 
 bocal corks
Author: oboeTX 2017
Date:   2017-09-15 20:56

Hello bboard,

Any suggestions on how best to replace a bocal cork for English horn? I first thought it would be similar to replacing a tenon cork, but each time I try to bend the strip of sheet cork around the bocal, the cork cracks straight through.

Thanks in advance for any advice you have to offer.

Reply To Message
 Re: bocal corks
Author: Chris P 
Date:   2017-09-15 21:16

Sand the cork strip on both sides first with a fairly coarse abrasive and then roll or bend it to make it more supple. Some sheet cork is more supple than others, so find the most flexible one and use that. The main problem is it has to go around a very tight radius, so really pushing the cork to its limits.

It also helps to humidify the cork, so place it in a freezer bag with a damp sponge or piece of kitchen towel dampened and ringed out.

When it comes to fitting the cork, I mount the crook on a wooden mandrel (filed to the correct taper) which goes into my bench chuck, then sand it so it's parallel-sided and bevel the end that goes into the socket.


Reply To Message
 Re: bocal corks
Author: oboeTX 2017
Date:   2017-09-15 22:00

Thanks Chris - a lot of good ideas I can try once I get home this afternoon.

Reply To Message
 Re: bocal corks
Author: Chris P 
Date:   2017-09-21 20:35

Some people suggest hammering or rolling the cork in a mangle to make it more supple. The downside with that is it will compress or distort the cork and it may recover or only recover in the less dense areas as cork isn't a uniform thing even on the same piece.

But humidifying cork is always the best option - find a large plastic Tupperware-type container (with a lid) and place a slightly smaller and shallower tub in there part filled with water. Place a mesh on top of that and place your cork strips on that so it's not in contact with the water. Or if you have a mesh with legs on it, do away with the smaller tub and just fill the large tub just enough so it doesn't touch the cork. Then seal the tub and leave the cork for a few days to hydrate.


Reply To Message
 Re: bocal corks
Author: oboeyogi 
Date:   2017-09-23 14:41

Hi you can buy Bocal cork that is round cork tube with a taped hole in it. almost looking like oboe staple cork but bigger.

I have some ready when the day comes.


Reply To Message
 Avail. Forums  |  Threaded View   Newer Topic  |  Older Topic 

 Avail. Forums  |  Need a Login? Register Here 
 User Login
 User Name:
 Remember my login:
 Forgot Your Password?
Enter your email address or user name below and a new password will be sent to the email address associated with your profile.
Search Woodwind.Org

Sheet Music Plus Featured Sale

The Clarinet Pages
is sponsored by:

For Sale
Put your ads for items you'd like to sell here. Free! Please, no more than two at a time - ads removed after two weeks.

Great reeds available from around the world

Accessories that every clarinetist needs - reed makers and shapers, ligatures, greases, oils, and preservatives ... and more!

Major events especially for clarinetists

Retailers and manufacturers of clarinets, both modern and early replica

Instrument repairs, restorations, adjustments, and overhauls.

Services and products too varied to categorize! Repair, recording, news

Music & Books
CDs, Sheet Music, and some of the greatest reference books ever written!

Mouthpieces & Barrels
Fine makers of mouthpieces and barrels, from wood to crystal to hard rubber and plastic

     Copyright © Woodwind.Org, Inc. All Rights Reserved    Privacy Policy    Contact