Contemplating having my tear sprayed with truck bed liner

I have a 4x8 that is almost finished... Just need paint and trim.
I am contemplating painting the exterior either myself with Herculiner or profesionally with truck bed liner.
Has anyone tried this?
How does it work for sealing against leaks?
How well would it hide divets from sanding and other imperfections in the body?
Any other thoughts or ideas?
I have consdidered many othe routes but it may be most effecient for me to go this route. I was thinking about using white.
Any comments/answers/ suggestions will be greatly appreciated. I plan to paint Monday...
Thank you, Dustin
I am contemplating painting the exterior either myself with Herculiner or profesionally with truck bed liner.
Has anyone tried this?
How does it work for sealing against leaks?
How well would it hide divets from sanding and other imperfections in the body?
Any other thoughts or ideas?
I have consdidered many othe routes but it may be most effecient for me to go this route. I was thinking about using white.
Any comments/answers/ suggestions will be greatly appreciated. I plan to paint Monday...
Thank you, Dustin