Can the 1 in. x 10 ft. Paper-Faced Inside Drywall Corner Bead be primed directly?

Mud must be applied over the paperface and the metal portion of the cornerbead to get an even finish.

To install the 1 in. x 10 ft. Paper-Faced Inside Drywall Corner Bead correctly, mud must be applied over the paperface and the metal portion of the cornerbead to get an even finish.