Re: Brand Other Than Pyrex
- From: Gloria P <gpuester@xxxxxxxxxxx>
- Date: Fri, 06 Feb 2009 16:44:24 -0700
James Silverton wrote:
Chemiker wrote on Fri, 06 Feb 2009 09:51:55 -0600:
I think
Fire-king and Pyrex are about equivalent. Kimble glass calls
their product Kimax.
Our experience with Kimax in a high school chemistry lab
was that it was more fragile than Pyrex. We had a lot more
breakage of every type with Kimax so we started to avoid
ordering it whenever possible.
Corningware is a different breed of cat. It is fired at
ungodly high temps and acts more like porcelain. It is
thermally VERY stable and can take thermal shocks that would
cause Pyrex to shatter.
Corningware, or Pyroceram, is a partially crystallized glass and, as you say, will take themal shock. It does not bounce any better than glass or porcelain and can break up spectacularly!
Amen to that. We have wooden floor in the kitchen and when a
piece of Corningware falls and breaks we still find tiny shards
for a very long time after mopping and vacuuming.
gloria p
.
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