On 2007-07-08, Spurious Response wrote:
On Sat, 07 Jul 2007 08:52:03 +0100, "Dave Plowman (News)"
wrote:

heat, however, most, if not all plastics with high temperature capacity
are much better conductors of heat than their intolerant relatives.

In other words, if it is a high temp tolerant plastic, it conducts heat
far better than any plastic you might be thinking of. Kinda goes with the
territory.

Now silicone, SOFT plastic types do insulate thermally. That is
different, and there are not a large number of them in that category. We
are talking about solid, construction capable type materials here.
The plastic that would be used on a vat of boiling water as a major
element of its containment would likely be a fair conductor of heat.

polypropylene is commonly used, look it up.

The reason low tolerance plastic types have such a low tolerance is
because of their lack of thermal conduction. Apply heat to the surface,
and it stays there. This is a bad thing when said heat can make said
surface reach a melting temperature fairly fast.

bull****.

Bye.
Jasen