Bonding effective through paint?

[Twoskinsoneman]

I understand that it is acceptable to use the armour of AC cable as the EGC. But I question whether you are getting an effective bond through the paint when you you use a painted box. Case in point I noticed AC cable run in a Sqaure D load center which has the gray paint job.

 

[charlie b]

A second thread with an additional question has essentially made this thread a duplicate. I will close this thread. Please continue the discussion here:
http://forums.mikeholt.com/showthread.php?t=88060