In this video, I spray raptor liner to the inside of the tub and all the floorboard areas. I ended up using 3 of the 4 bottles of black liner from the kit.

3 bottles covered the entire inside with thick enough coats for protection.

50psi sprayed at about 12-18in away gave it a smooth thick texture that does not scuff or scrap your skin. You could ride bare foot without hurting your feet. Perfect texture for dogs riding in the back!