Line-x without a doubt! I've owned three trucks with line-x, raptor liner, and rhino liner. There is nothing like dropping a fire hydrant (625lbs w/ sharp angles) 3 or 4 feet from above the bed or haul metal crates loaded to hilt (1-2000 lbs)to test out the liners capabilities. Between those 3 line-x is definitely the toughest, raptor liner comes in 2nd but it has to be sprayed on thick to keep from peeling.



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