Re: Lead free glass gets test

To: neon-l@netcom.com
Subject: Re: Lead free glass gets test
From: dead (ja)
Date: Sun, 12 Nov 1995 11:00:16 -0800 (PST)
In-Reply-To: <Pine.ULT.3.91.951110193802.11248D-100000@pool.info.sunyit.edu> from "Howard B. Cohen" at Nov 10, 95 07:56:50 pm
Reply-To: neon-l@netcom.com
Sender: owner-neon-l@netcom.com

Dave was kind enough to send me a sample of the lead free stuff as well.

I didn't save a copy of my evaluation, but to summarize briefly:

I would describe much as Tom did - it has a very slightly higher 
softening temperture.  Finsihed (cool) units also feel stiffer, with less 
flex in a long unit.

You can add gas to your hearts content - it will not blacken.  I found 
that a slighly richer flame more than makes up the temp difference.  It 
essentially works the same, and I made a flawless letter with the first 
peice I picked up. It seals perfectly to lead glass, with no strain 
evident under a polariscope.  I placed several bends back into a sharp 
flame, and there was no fracture.

The only drawback I could imagine is that it has a tiny bit of sodium 
flare.  Not as much as the colored glasses, so if you work these without 
dydymium specs you'll not need them.

    -John Anderson

References:

Lead free glass gets test

From: "Howard B. Cohen" <ohbc@sunyit.edu>