From: Guy Brandenburg 
To: Bob May 
CC: atmlist 
Reply-To: Guy Brandenburg 


Good point, Bob. It's probably best to take a sample of the molten stuff,
pour it on some aluminum foil or a tile or something hard to a depth of
about 1/4 inches, or more, then put it in a freezer or cold water or
something for about 10 minutes or so, and then test it with your thumbnail,
to see how fast it indents. Obviously, after you've cooled it thoroughly
you need to bring it back to room temperature. Or else you can make one of
Texereau's little testing devices. Or else you can just pour the lap, form
it, let it cool, and see whether it's too hard or too soft. Texereau's
methodical methods would certainly come in handy here - there are sooooo
many variables, and it is hard to come up with a simple protocol that works
every time.

Guy Brandenburg

Bob May wrote:
> One thing that has always bothered me is that when you chew pitch, you are
> testing it at your mouth temp which is in the 96-98F temp range, depending
> upon your particular habits with your mouth.   The thing here is that that
> doesn't tell what the action of the pitch is going to be at another temp
> until you gain a familiarity with the stuff over many years of working with
> it.
> Bob May
> http://nav.to/bobmay
> bobmay{at}nethere.com
> NEW! http://bobmay.astronomy.net
>
>
>
>

--- BBBS/NT v4.00 MP