Ever Seen Rust in the bed?

Was cleaning out some stuff in the truck, and noticed rust in the bed. Tried cleaning a small spot and wont go away You would think, Composite bed isnt supposed to rust! This is only a pic of a small portion, it continues all along the bed in random spots

 

I saw a similar looking mark last weekend when I was cleaning out the bed. Took a nylon scrub brush and just went around the bed with a pale of soapy water.
everything came out and I found a renewed black-ness to the bed.

 

I did something very similar, and it wont go away...Im thinking a little sanding, primer and some paint will do the trick

 

looks like dirt...how is composite going to rust?

 

It's likely coming from something else.

 

right. Im telling ya when I scrub it, wont go away and its into the "pits" of the composite

 

see thats the thing, the only things ive really hauled in my bed have just been lumber materials and our kayaks. Nothing really else has been hauled in the bed within the last 2-3 months

 

Are you sure it's rust? Trees in my yard shat pollen all over my truck bed. It was more yellow than orange, but it's hard to tell color in photos.

 

for sure rust. I was thinking it is dropping down from behind the rails where the screws go into the bed but thats just a guess

 

That. My bet is pollen or some other item that is small enough to get embedded into the pores of the bed material.

 

Ever haul fertilizer in your bed?

 

Negative

 

Chickens?

 

I just pressure washed my bed last weekend, looks brand new. Maybe give that a shot?

 

Thought about it one time but then I remembered I live in the 'burbs

 

has been tried...no dice

 

To be for sure for sure go get a small bottle of naval jelly and try it on one of the spots. If it neutralizes the rust and turns it black you have rust. I don't think the phosphoric acid will discolor the composite but that one small spot will be a good test to know if you can use it everywhere. Or you could do a larger test patch someplace inconspicuous like underneath the bed or behind a tail light.

 

interesting. I will check into this!

 

It's probably rust from metal shavings of some kind in the bed, not the actual bed rusting. My buddy cleaned the swim platform on his boat with steel wool like an idiot. Next day it was all "rusty"

 

unless someone somehow got shavings in my bed, There hasnt been any metal hauled in the bed.