Clear Coat

i just finished the painting of my interior !wohoo!, but no i want to do a clear coat. When i put the actual paint on I used this 3M stuff to remove the shine off the plastic to make the paint stick better. Am I going to have to do the same thing before the clear coat to make it stick?

Ill have pics of it when im done

All I did was clearcoat on top of the dried paint.