painting trunk floor

I was wondering what paint or undercoating to use to paint my duster trunk floor the car is tubbed and the paint now has been strip because it was not prepped right and gas spilled on the floor and the paint came off. I was going to use self etching primmer on the metal . I dont no if i should use a spray on trunk bed liner or paint The car is raced and showed sometimes so I want it to look decent.