Those of you with sprayed bed rails are you getting a yellowish film running down your paint? Maybe because my truck is white it's more noticeable. I start to get it this time of the yr from the morning dew especially if the truck hasnt been washed in a few weeks.

Nope, what brand liner do you have?

http://www.sprayontruckbedliner.com/

I think they're a spin-off of Line-X or Rhino

I've never noticed anything like that from my Line-X liner. I can't hardly imagine simple water would be extracting any color compounds from the liner itself-particularly after it is fully cured. Perhaps an environmental residue is sticking to the liner and being dissolved by the dew?

pollen?

I vote pollen also!

Nope not pollen for certain becuase I would see that on the hood & roof. It is coming from the bedliner - looks like a oily film of some sort. Since it has a lifetime warranty I called them, now awaiting for the GM to call me back. Keep the suggestions coming.

It's gotta be something that is stuck on the material of the over rail section. Hopegully the place has encountered this before.

but mine is only a week on the truck. Nothing from the Liner but a tree dripped on my hood and it was about the same as you described.

http://www.sprayontruckbedliner.com/

I think they're a spin-off of Line-X or Rhino

No, they definately are NOT. No telling where their chemicals come from. There's hundreds of these little off brand bedliner businesses. I'm not saying that there product is bad, but you sure are taking an increased risk by going with a no-name brand.