Hi Terren

 

I have tested some laminates of carbon and found their resistance to current faily hi.  Around 10^6 or so which is in the static dissipative region.  I'll have to check my notes.  As I remember it, the vacuum bagged laminates were oddly less conductive than the open layups.

 

To test this, in one instance I used the inner laminate of my boat for the testing.  For this, I placed stainless screws in the laminate at about 20" x 20" at 90 degrees to each other (I had this pattern in my boat for screwing in the wood trim strips).  This part of the laminate was about 21 oz of unidirectional carbon in a plus 9 degree, minus 13 degree and 90 degree laminate (matching the load path in the hull).

 

Other laminates I tested were test lamiantes of solid carbon, some with uni, others weaves.  I'll try and see what I have in my notes.

 

Dan

 

Dan Newland