Originally Posted by Acroma
Most drop in liners will let moisture and dirt get under it causing rust. A roll on liner doesn't allow that to happen.
but if you are not going to do ALL the prep work for the roll on liner moister could get under it and it will not last.
at least this is would looks to of happened to my bed. most of the liner that was on top of the rails has come off. There is at lest one spot on the bed floor that the liner cracked and has rusted under the liner.
when the weather gets a bit nicer out I am going to strip off the old roll on and do a very good prep job and put down a good roll on.
I had a drop in liner that was a bit old and it started to come out as I was driving down the road. another time I was behind some one on the highway when there liner came off the truck at 70mph in heavy traffic. good thing It went off to the side off the road.
leaves have got under some of my drop in liners befor