styptic breaking

I have had my current pencil for roughly 4 years with no breakage.I haven't dropped it though so I think that helps :D
My latest alum block suffered an internal crack after I ,rather heavy handed, dropped it onto the sink from 6 inches height.
 
Its one I found in a local chemist. I find they are just so brittle, too long and thin. I'm sure getting it wet causes it to disolve and get weak.
 
Typically the styptic pencil is made up of aluminium sulphate (soluble) and talc (insoluble), compressed together - add water to that and it will partly dissolve.

If it's kept wet (by not drying it and putting it away) then the moisture left will slowly permeate through it and weaken it.
 
hunnymonster said:
If it's kept wet (by not drying it and putting it away) then the moisture left will slowly permeate through it and weaken it.

Thats probably where I'm going wrong.

If at first you don't succeed, read the instructions.
 
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