Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan 
<stefan_trethan@g...> wrote:
> On Thu, 13 May 2004 17:44:29 -0000, Dave Mucha <dave_mucha@y...> 
> wrote:
> 
> >
> >> I'm sure i bought my FR4 a big lot cheaper (there are also a few
> > phenolic
> >> in there,
> >> i think, they are darker but i haven't checked for fibers....)
> >>
> >> ST
> >
> >
> > odd,
> >
> > my origional stuff was pure white.  I'm beginning to think it was 
not
> > regular board material.
> >
> > Dave
> 
> 
> Yes, there is white too.
> I have the impression the white stuff is much more brittle, with 
much more 
> solid component,
> while the dark brown stuff seems to contain more resin.
> Especially the "1 layer of glass on each side and paper between" 
seems to 
> be the white
> kind while the older material is more often brown.
> Have taken apart a lot of TVs etc. with light colored phenolic.
> 
> Don't worry, you would have noticed if it were teflon ;-)
> 
> ST

What does Teflon look like ?