We have a 93 f350 XL Flat-bed dump truck that is used mainly for hauling junk from construction sites. It just had a new bed put on last year, and the scraping of the bed from dumping has started to wear off the black paint, and the scratches are starting to rust.

What would be the best spray-on coating for this that won't have to much grip so the junk still slides out easily?

 

I would go with Line-X. That seems to be the most (slick) lining I have seen. My rhino liner was ok. I don't think either would be bad as they both have good warranties.

 

POR15. It is probably the most durable paint you can find

Do NOT go with spray in bed liner. they are designed to NOT have things slide

 

I'm with Brad, POR15 is good stuff.

 

I don't think it matters what you paint it with, no paint is going to stand up to having 2X4's with nails sticking out and weighted down drug over it day after day.

You could cover it with 3/16" aluminum plate. If you attach the sheets with stainless steel countersunk flat head machine screws either tapped right into the bed or drilled though with a nut under the bed it would be nice and flat so things would slide easily and it would take a long long time to wear through.

It wouldn't be cheap though, a quick online look shows a 4x8 3/16 plate at $288 and you would most likely need 2. You could probably find it cheaper - that was the first place I looked. 3/32" was $188 for a 4x8, but I'm not sure if that would hold up for you in the long run. 1/4" would be even better, but it costs quite a bit more.

Would also be a bit of work to drill and countersink it, but you would only have to do it once.

Edit: Sometimes large scrap yards keep the plate they get and sell it reasonably, or if you can find somebody who makes large tanks nearby they might be able to get you a deal on some.

 

I don't think anything is going to hold up to scrap metal sliding around on it. Your best bet may be to hit the scraped up spots with spray paint once a month or as needed.

 

That's what I was thinking, the bed liner would grip too much. I've never used the POR15, but I will look for some.

Thanks

 

But like Bashby said. NOTHING will hold up to nails and sharp metal scraping against it

 

Some sheet plastic could work... kinda like a bedliner.

 

That's not universally true. Something like Line-X leaves a hard, glossy finish - I imagine their goal was to try to mimic as much as possible the slippery finish of a drop-in bed-liner. Something like Rhino-liner is indeed intended to provide a softer, "more grippy" surface.

Either would probably a waste of money given your intended use.

 

Plate aluminum holds up pretty good on Rollbacks, I've seen some abused for years, some fairly good gouges to be sure, but never anything through and some of them see a lot of heavy sharp steel everyday.

They don't make very good rollbacks because the welds like to pop loose, but great junk haulers.

I live smack in the middle of several large scrap yards and exporters so I see a lot of rollbacks.

 

Thanks guys,
I'll probably try the POR15, If it doesn't seem to last much longer then average spray paint I'll probably just coat it every month or so like BashBy suggested.

 

UM.... Line X is designed NOT to have things slide on it, just like EVERY OTHER spray bed liner. That is one of their advantages OVER a plastic slide in.

I have had Rhino, Line-x and Scorpion. All 3 of them had SUPERIOR "holding" over a plastic slide in or just a plain bed

 

plywood, paint it if you like.

 

It's a work truck ........... If you haul enough stuff in it then it keep the rust worn off. Or spray it down with oil, biodegradable organic oil of course