Barrier Coat or Not?

Jul 20, 2021
1
Precision P15K Kill Devil Hills NC
I recently purchased an older Precision 15K. The boat had been sitting in the water for some time and had a good amount of growth, barnacles and algae. That has been removed and I am in the process of working on the remaining barnacle rings. Once done, should I barrier coat or just leave the gel coat. The boat will always be trailered.