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Re: Pad glue

Author: Chris P
Date: 2017-03-26 20:19

Scratching up the inside of the pad cup with a sharp scriber will help with adhesion as well as priming the inside of the (clean and degreased) pad cup with a thin layer of shellac before installing the pads.

Some people are dead against scoring up the inside of the pad cup for whatever reason, but it's hardly an issue as it's not even visible to anyone or has any effect on the instrument.

Storing instruments in the cold will sometimes cause shellac to come away from the inside of the pad cup if the inside surface is perfectly smooth.

As for the different colours of shellac - usually white and amber used on clarinets, the only real difference is the colour. French cement is just shellac with a white or off-white colour and is used on white pads as it matches the colour. Clear/amber shellac is typically used with brown leather and cork pads due to the colour match.

And just for the record, the colour of the shellac used has absolutely no effect on the tone!

Former oboe finisher
Howarth of London
1998 - 2010
The opinions I express are my own.

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