Re: [Harp-L] Small mp leak

Whenever a harmonica has a serious leak, it is evidence that there is something mechanically wrong.  The preferred method is to fix what is wrong instead of "band-aiding" it with gasket or grout. I have never encountered the need to fill a gap in a harmonica.

However, once you understand the underlying problem and have consciously decided not to fix it, I would prefer grout to a gasket.  I would use silicone-rubber aquarium sealant because the fish are probably more sensitive to chemicals than you are.  While this sealant is setting up, it emits the odor of vinegar (acetic acid).  Once cured, it is odorless and inert.  

One should use an oily or waxy parting compound on any surface to which the sealant should not adhere.


On Mar 15, 2012, at 4:13 PM, Joseph Leone wrote:

> On Mar 15, 2012, at 6:14 PM, Music Cal wrote:
>> Does anybody know of a rubber-like material that does not smell, is thin
>> enough for this purpose (.005 in to .01 inch) and is FDA grade (safe around
>> food so safe in one's mouth)? The material of Ziploc food bags does not
>> have an odor and its FDA grade but it is not thick enough or spongy enough
>> for a good gasket.
>> Music Cal
> I once used red hot water bottle rubber. It was the correct thickness. Unfortunately, the water bottles these days aren't smooth. They have a pebble grain finish., and too thick anyway.No good. I'm still thinking. (Every time my family throws something out, I study it for possible harmonica uses.....and 'I' do the garbage. lolol)
> smo-joe

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