I've seen several done by Alan Spaeth in Lakeland FL for his aluminum boat restorations.
I do not know which product he uses but he tints the color and sprays it. It is a light color speckled and I like it.
I think I've seen it on vintage cars for inside the trunk.
Not your typical bed liner black. 

Ormand. No.

I have a friend who did the outside of his car in it.  It's a love it or hate it look.  Very durable no door dings or parking lot scratches.  It looks and feels rough, like sandpaper.  I would not want to rub up against it while you are bopping down the river.

wrote:

Has anyone ever used truck bed liner on the inside of the boat?
 

Sure, you see it all the time on Craigslist, usually done by the same people that think sawzalling the decks off to make a 'fishin' boat is a good idea.

As Marc notes, there's probably a better way.

Noooooooooooo!

wrote:

Has anyone ever used truck bed liner on the inside of the boat?

Hi Ormand, why do you ask?
Are you having a leaking problem?
I know you used glovit on the outside bottom. Putting bed liner down probably is not a good option.
If you are taking on small amounts of water that your bilge can pump out, I would think that's normal. " It is for me anyway"

If you are taking on a lot of water that seems to be  more than usual I think you need to look Into it farther and bed liner would not be the fix to your issue.

Let us know what you are trying to achieve, and we can come up with a good solution for you.
 

Please don't do it it's a trap 
Charlie 

Has anyone ever used truck bed liner on the inside of the boat?