Herculiner is NOT a 2 part epoxy with rubber particles.I'll just leave this here...
How Do I Get Herculiner Off of My Hootus?! - Ford Explorer and Ranger Forums "Serious Explorations"®
Herculiner is a glorified roll on paint.
It is a very DIFFERENT product than Rhinoliner or Line-X bed liners, which are a heavily rubberized 2 part epoxy product.
The product to which I refer is NOT like Herculiner, it is like Rhinoliner/Line-X.
But I wouldn't want to get this stuff on my hootus either!