Anders Heintz
A Fixture
If you are in the US go to Auto Zone or O'Reilleys and pick up some gray primer called "Brite Touch" or could also be called "Touch 'n Tone", about $3 per can and is the smoothest and best primer I have ever used, and I've more or less tried anything out there. It is super smooth and is a nice flat that accepts paint real well. Easy to get and cheap, you cannot beat it, I promise!