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Re: ATM pitch to soft




HI larry
Sounds fine to me.
My pitch does the same thing and its new gugolz #64, I have#73 also but it
takes about 8 seconds.
It depends on room temprature too.
I would just start polishing.
Stan
----- Original Message -----
From: "Larry Davis" <Davis@digdat.com>
To: <atm@shore.net>
Sent: Thursday, February 28, 2002 8:39 AM
Subject: ATM pitch to soft


|
| Hello everyone ;  This is my first mirror. I just poured the pitch lap in
a
| mould, using Texereau as  guide. Moderate thumb nail pressure indents the
| pitch in about 3 seconds. This is very much softer than the 10 sec. heavy
| thumb nail test according to Tex. ( I think ). Before stripping mould and
| cooking pitch again I wanted to consult the list to see if any of you had
| other options or a more precise test for pitch hardness. I,m using medium
| hardness burgandy pitch as supplied by Newport Glass.   Hoping to avoid
dumb
| mistakes, thanks.   LFD
|
|