I installed the FR bumper on my TDi sport only to find the front bumper came from a car with headlight washers, leaving me with two holes in the front.
I have the headlamp washer covers waiting for me at the local dealer, but they are currently primer grey.
Any suggestion how I should go about painting them?
I have no experience of painting cars and would like to make an excellent job of them.

I have the headlamp washer covers waiting for me at the local dealer, but they are currently primer grey.
Any suggestion how I should go about painting them?
I have no experience of painting cars and would like to make an excellent job of them.