...I was reading the information you added in your post.
You mentioned Rhino liner. Do you know if it was an aliphatic or aromatic
polyurea? Aliphatic polyurea isn't affected by ultra-violet rays, the other turns a
brownish grey.
Aromatic with black pigment last longer than the other colors. Both have the same
characteristics against chemicals.
I have been considering it in the wheel wells.
The only thing I have against it is that over time the surface texture will hold gobs
of dirt and will be difficult to keep a clean appearance.
Your thoughts on any of this would be helpful.
Dave