Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "Dave Mucha" <dave_mucha@y...>
wrote:
....
> When I got my T-TEch machine, it came with a couple sheets of 1oz dbl 
> sided with a very white substrate.  the copper pealed off very 
> easily.   So easy that it was easier to peal than to use the cutter 
> to clear large sections of unused area.
> 
> The FR-4 I used next was next to impossible to peal and the CM-1 I 
> now use is very easy compared to FR4 but not quite as easy as the 
> other stuff.


Maybe this is a stupid question but why whould you want copper that
peels off that easily?  I have enough trouble trying to AVOID lifting
pads and traces that any gain from clearing large areas would be lost
to damaged boards.  I want my copper to adhere very tightly. (there's
a bad joke in there but I shall desist).   Wouldn't the large areas be
better left as ground planes?

Phil