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Re: Pad glue

Author: clarnibass
Date: 2017-03-26 22:04

I stock several types of shellac and hot glue and I've tried many more. I prefer a specific type of hot glue for clarinet pads (I use shellac for saxophones). I found that at least this hot glue doesn't move and there are no problems with it. It's relatively high temp hot glue.

See the synthetic shellac stick in the attached photo. I've had the same thing though to a lesser degree happen with real shellac. Hot glue is more flexible as a stick, but this never happened with any type I've tried. This means that its springiness can actually help against this. With the relatively firm hot glue I use, the springiness is never an issue when closing a key, though I've never seen that causing a problem even with softer hot glue.

Although more rigid, the shellac (and especially synthetic shellac) can move when constant force is applied to it, exactly like a key, mainly the closed ones. Since most keys are pretty large in proportion to the key arm length, the front will always have more pressure than the back. This can cause the pad to move and eventually the back would hit before the front.

I stopped using two types of synthetic shellac for this reason. I use a few types of shellac and hot glues that don't have any short or long term problems.

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