A spray-on liner is a great first step in protecting your truck bed. However, spray-on liners do not offer the cargo traction, dent protection or, knee cushioning that our Black Armour Truck Bed Mat provides. To apply a spray-on liner your paint finish must be sanded or etched to allow the spray liner to adhere to the surface of your truck bed. This process will void your truck’s paint and corrosion protection warranty in some cases. Black Armour® bed mats are constructed from 100% recycled vulcanized rubber and will not damage your paint. If you want the very best protection for your truck bed, we recommend adding a Black Armour® bed mat on top of your spray-on liner.