EFI....The only way to fly!

[Robert Myers]

Bakelite is a highly cross-linked thermosetting phenol-formaldehyde resin
with sawdust and charcoal filler.  The sawdust to make it cheaper and the
charcoal to make it black.  Correct.  It will burn nicely if it gets hot
enough.  Normal oven cooking temperatures (350-400 or so Fahrenheit) don't
have much short term effect on it but if it gets much hotter than that
thermal degradation sets in over time.  And if it gets _significantly_
hotter than that then all bets are off.

At 08:15 PM 5/16/02, nicksimc wrote:

>I was under the impression that phenolic and Bakelite were two different
>substances.  As I understand, Bakelite was the first "plastic" to be
>developed, and is derived from wood.   Part of the reason it is no longer
>used is because while it is insulative at low temperatures, at higher ones
>it is highly flammable.  I thought that phenolic was the modern
>replacement, having similar properties except for the flammable part.
>(This is just what I've come to understand from poking around in tube
>amps)  If phenolic and Bakelite truly are one and the same, I'm not sure I
>would want this inches from a glowing turbo EM.

That's what might make this such an interesting experiment to perform.
Keep your fire extinguishers handy.  :-)



>Matt
>
>82 4ks
>84 4ksq (RIP)
>
> >Some names include Bakelite (developed by J.P. Baekeland [if I spelled
>his
> >name correctly] who modestly named it after himself) and
> >Phenol-formaldehyde resin among others.  It's the stuff that was used for
> >old fashioned black pot handles and telephone handsets from _many_
>years
> >ago.  It is pretty resistant to heat but will eventually degrade after much
> >use.  I don't know how well it will stand up to the intended use.  This
> >might make an interesting experiment for someone.
> >
> >At 03:38 PM 5/16/02, gerard wrote:
> >>I'm no plastics expert, so
> >>what other names is phenolic known as? I need to know that 'cos the
> >>folks out here in Africa tend to talk about things by different names
> >>(Try asking them about AN fuel fittings!). I can always have a workshop
> >>make a piece using a gasket as a pattern.
> >>
> >>G.
>
>
>
>
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Bob
*****
  Robert L. Myers   304-574-2372
  Rt. 4, Box 57,  Fayetteville, WV 25840 USA   WV tag Q SHIP
  '95 urS6  Cashmere Grey - der Wunderwagen    ICQ 22170244
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