I had a Line-X liner sprayed in the week after I picked up my RAM in 2003. I have hauled gravel, top soil, cinder block, brick, firewood, lumber, paving stones and broken concrete. I use a shovel right down to the bed to get dirt and gravel out. It is abit faded now and about 10 years ago I got one of those heavy rubber mats but there have been no breaches, cracks or chips in it. Unlike my last truck where all the paint was gone and it was covered with rust and small dents. Which was why I decided to try the Line-X. If its still the same stuff I would not hesitate to do it again. It cost $1100 for an 8' bed and the top rails in 2003. Worth every penny.