preping new doors panels for primer and paint

[AmadeusCharger500]

I bought doors that were coated in what looks like black primer. It had a sticker said somethin like electronically charged. Is there anything to do other than scuff and spray on the primer coat?

[bill440rt]

You should not have to remove the black e-coat.
Completely scuff or sand the door entirely, and then prime.

[Canadian1968]

Actually , as long as there no damage in the door ( from shipping )  you can just scuff ( 600- red scuff pad) and paint. The e-coat is fine. But depending on the rest of the project, you may want to seal to match colour

[bill440rt]

Paint will not properly stick to e-coat, sorry. You must at least apply a sealer.

There are some primers/sealers nowadays that you can apply to new e-coated OE parts without sanding. I wouldn't trust that method on these aftermarket parts, so I recommend sanding them. 

[jaak]

You should not have to remove the black e-coat.
Completely scuff or sand the door entirely, and then prime.

Jason