> >
> >I would just add which will possibly just add to the confusion that any
> >attempt to prove or disprove any of these theories one would have to
> >consider all other variables in play especially the pigment(s) color, the
> >amount of pigment, the thickness of the coating, exposure, etc.
>
What is the point of all this ?
Simple observation of what happens in practice tells us that hardenoing
happens top down. The variations relate to what happens in practice, .
All this other stuff is 'angels on heads of pins' territory again.
Terry
Received on Thu Apr 6 16:02:05 2006
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