Sure, you can always add more layers, but how much money and time are you willing to spend on this project? It's worth putting in the effort to ensure a bed liner will protect as well as you need it to before you buy it. Not all bed liner paints provide the same level of protection.
After all, it's the whole reason you're considering one in the first place. The amount of protection a bed liner offers is another primary concern. Roller kits and aerosol cans are both very easy, so you'll also want to consider the finish you're looking for with this aspect as well. That said, you want to make sure you pick the kit that's easiest for you to apply.
With its clog free nozzle it is easy to use and dries to form an. Its 1K formulation gives a durable, abrasion resistant finish with excellent adhesion to metal, aluminum, fiberglass, plastic and wood. In a perfect world, you'd all have the means to use a spray-in bed liner. RAPTOR 1K Truck Bed Coating is ideal for protecting truck beds and other vehicle surfaces from impact, scratches, corrosion and water damage. That said, it's worth researching the options to find out which has the texture that best suits your needs. Sure, we already discussed anti-slip properties, but the texture can vary based on the manufacturer and compounds used. The texture of the bed liner is a primary concern.