Homebrew PCBs

> I just cleaned the board with a 
> green kitchen pad before ironing
> on the artwork. I probably
> should have roughed it up a bit 
> to help the toner stick, 
> I'll try that next time. 

Uh... The Greeen scouring pad is often called Scotch-Bright and is a 
plastic sandpaper.

It will grind away steel like any sandpaper.  The white stuff is not 
as common but will not gouge out plastics and paint like the green 
pads. 

The green pads are pleanty abrasive to grind away all the copper on a 
board with an overly enthuastic 'polishing'

Just because it looks like plastic does not mean it cannot attack 
steel.   Many a non-stick pan was lost to the casual assumption that 
because it was sold for cleaning 'dishes' that it is safe for 
everything.

Dave