On 05/03/2021 15:50, JNugent wrote:
On 05/03/2021 03:01 am, The Natural Philosopher wrote:

What the **** do you think Formica is? It started out as bakelite

Formica is closer to Paxolin, I'd say.

As its name would suggest, Formica was originally intended as a
substitute for mica. Does anyone know which of the manifold properties
of that useful mineral it was meant to emulate, as the plastic laminate
beloved of caravan owners has no resemblance that I can see?

--
Max Demian

"Max Demian" wrote in message
o.uk...
On 05/03/2021 15:50, JNugent wrote:
On 05/03/2021 03:01 am, The Natural Philosopher wrote:

What the **** do you think Formica is? It started out as bakelite

Formica is closer to Paxolin, I'd say.

As its name would suggest, Formica was originally intended as a substitute
for mica. Does anyone know which of the manifold properties of that useful
mineral it was meant to emulate, as the plastic laminate beloved of
caravan owners has no resemblance that I can see?

wiki claims that it originally just replaced mica in electrical
installations which sounds plausible.
https://en.wikipedia.org/wiki/Formic...gy_of_the_name

On Sat, 6 Mar 2021 09:41:52 +1100, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:

FLUSH the trolling senile asshole's latest troll**** unread

--
Bod addressing abnormal senile quarreller Rot:
"Do you practice arguing with yourself in an empty room?"
MID:

On 05/03/2021 03:03, The Natural Philosopher wrote:
On 04/03/2021 14:50, JNugent wrote:
On 25/02/2021 11:18 am, Andy Burns wrote:
Chris J Dixon wrote:

Chris Green wrote:

Paxolin is the sort of stuff that tag boards and early printed circuit
boards were made of. I.e. it's brown and sort of laminated.

Indeed. Officially I think it is SRBP
Synthetic Resin Bonded Paper industrial laminate

Ah, the nostalgic smell of junior hacksaw on veroboard ...

That's it!

Or overheating brake and clutch pads - a nice mixture of asbestos and
phenolic resin..


Good God it's 10 years ago since my next-door neighbours burn their
clutch out.

https://www.youtube.com/watch?v=6zO0...el=DashcamHull

--
Adam

On 05/03/2021 07:29 pm, Max Demian wrote:
On 05/03/2021 15:50, JNugent wrote:
On 05/03/2021 03:01 am, The Natural Philosopher wrote:

What the **** do you think Formica is? It started out as bakelite

Formica is closer to Paxolin, I'd say.

As its name would suggest, Formica was originally intended as a
substitute for mica. Does anyone know which of the manifold properties
of that useful mineral it was meant to emulate, as the plastic laminate
beloved of caravan owners has no resemblance that I can see?

Insulation, I would guess.

The only time I can ever dealing with mica (bought in for the purpose by
the firm) was as replacement insulation on a commutator on a large DC
motor in for rewind. I was only the apprentice and didn't have to do
anything with it. I was mainly doing the soldering of the coil tails.

On 05/03/2021 19:29, Max Demian wrote:
On 05/03/2021 15:50, JNugent wrote:
On 05/03/2021 03:01 am, The Natural Philosopher wrote:

What the **** do you think Formica is? It started out as bakelite

Formica is closer to Paxolin, I'd say.

As its name would suggest, Formica was originally intended as a
substitute for mica. Does anyone know which of the manifold properties
of that useful mineral it was meant to emulate, as the plastic laminate
beloved of caravan owners has no resemblance that I can see?

Bad electrical, good heat conductivity.

Formica resulted in reduced cost. Easier to work with - very similar to
how roof tiles replaced slates.

PA

On 06/03/2021 19:00, Peter Able wrote:
On 05/03/2021 19:29, Max Demian wrote:
On 05/03/2021 15:50, JNugent wrote:
On 05/03/2021 03:01 am, The Natural Philosopher wrote:

What the **** do you think Formica is? It started out as bakelite

Formica is closer to Paxolin, I'd say.

As its name would suggest, Formica was originally intended as a
substitute for mica. Does anyone know which of the manifold properties
of that useful mineral it was meant to emulate, as the plastic
laminate beloved of caravan owners has no resemblance that I can see?

Bad electrical, good heat conductivity.

Formica resulted in reduced cost.Â* Easier to work with - very similar to
how roof tiles replaced slates.

Mica can withstand high temperature and is (usually) transparent, so can
be used for furnace windows. The temperature resistance combined with
its insulation properties when in thin sheets makes it useful for
mounting electrical components on heat sinks. And its dielectric
constant is 7 I think which makes it good for high voltage capacitors.

--
Max Demian

"Max Demian" wrote in message
o.uk...
On 06/03/2021 19:00, Peter Able wrote:
On 05/03/2021 19:29, Max Demian wrote:
On 05/03/2021 15:50, JNugent wrote:
On 05/03/2021 03:01 am, The Natural Philosopher wrote:

What the **** do you think Formica is? It started out as bakelite

Formica is closer to Paxolin, I'd say.

As its name would suggest, Formica was originally intended as a
substitute for mica. Does anyone know which of the manifold properties
of that useful mineral it was meant to emulate, as the plastic laminate
beloved of caravan owners has no resemblance that I can see?

Bad electrical, good heat conductivity.

Formica resulted in reduced cost. Easier to work with - very similar to
how roof tiles replaced slates.

Mica can withstand high temperature and is (usually) transparent, so can
be used for furnace windows. The temperature resistance combined with its
insulation properties when in thin sheets makes it useful for mounting
electrical components on heat sinks. And its dielectric constant is 7 I
think which makes it good for high voltage capacitors.

--
Max Demian

Silver Mica for low loss RF capacitors.