I used it as an undercoat on my crew cab
but I sprayed it with an undercoat gun I bought off ebay for under 30 bucks
http://www.ebay.com/itm/UNDERCOATING-SPRAY-GUN-w-CUP-Auto-Truck-Bed-Liner-Coating-Chip-Guard-Paint-/191152899265?pt=LH_DefaultDomain_0&hash=item2c8199c4c1
I like the ay it...