Painting - Painting concrete floor

I am in the process of painting my concrete floor. This is the living room dinning room and the kitchen. I am painting it to look like ceramic tile. I saw this on a do it yourself show. My question is this......I have put 2 coats of primer on and getting ready to paint, now when I am finished should I put anything ontop on the last layer of paint to protect from scratching up the paint? Does that make sense?

Thanks
abagera

What type of paint will be used for the final coat? That will determine if something should be added for durability.

Not sure Flat enamel? Does that sound right?

Any suggestions?

Hmmm
Maybe you could say the brand, hard to give advice without knowing what primer and top coat you are using. If you bought at a paint store I would as their opinion on their products.
Doyle