If you are _really_ concerned about sticking paint to this, check with any
good local auto paint supply house.  These are the guys who mix DuPont and
Sherwin-Williams and other brands of paint to specific colors as required by
the body shops.

They can sell you a sticky primer.  The used car dealers like this stuff for
repainting cars where there isn't enough money in the job to justify careful
sanding and prep; and many painters like it for priming inside door jambs
(if the color is to be changed).