!!!Rusty Bed!!!

VShortt · 06-17-2004, 09:57 AM

Today as I was filling up with gas, I was leaning over the edge of the bed of my truck and I noticed little rust spots in the spray in liner. It appears that what is happening is that the liner is chipping off in tiny pieces and allowing water to penetrate. Evidently, it is bare metal under there because of the rust. I have to go to the dealer today for an A/C issue anyway so I will bring it up at that point. This one really concerns me because I don't see an easy fix for it. I don't want a totally new bed. I guess we will see.

Austin · 06-17-2004, 10:55 AM

Hard to tell from the photos, but that looks like it could just be surface discoloration.

Have you tried scrubbing the bed with soap and water?

IMADOGMAN · 06-17-2004, 11:02 AM

At first, I thought that there appeared to be a hole through the bedliner in the second photo. On closer inspection, it appears to be a little piece of wire. Rust could very well be from metal particles...try scrubbing first....let us know.

VShortt · 06-17-2004, 11:09 AM

Quote:

Originally Posted by IMADOGMAN

At first, I thought that there appeared to be a hole through the bedliner in the second photo. On closer inspection, it appears to be a little piece of wire. Rust could very well be from metal particles...try scrubbing first....let us know.

What you are seeing in the second photo is a nick. Although the liner in that spot is still intact, it is pulled back out of the way. Its hard to tell from this angle but if you were to touch it, you could bend that little piece back and forth. It is as if it were nicked with something. I will try both of your suggestions...definitely...but how is it possible for rust to simply be sitting atop the bedliner. Please explain in more detail if possible. Thanks to both of you.

BudmanHemi · 06-17-2004, 11:42 AM

Very odd for corrosion to show on a spray bedliner. I did some research and found that PPG does your bedliners in a 2 part process. I cant find the first material used, but the second coating is a dust coat for texture purposes. I figured if i could find the exact materials used, or if there was any metal flakes involved it would provide a solution to the corrosion. I have read some other posts on pickuptruck.com about the bedliner rust spots. In my personal opinion i think they will remain on surface only and bed is totally protected. It would still be nice to know why it happens.

http://www.sae.org/automag/material/...1-112-5-79.pdf <~scroll down
halfway.

Here is a copy past of a review i found on cargo for the titan.

The Titan’s 5’6” bed offers the first available factory-applied permanent spray-in bed liner (part of the Utility Bed Package). Offering distinct advantages over aftermarket spray systems and aftermarket “drop-in” liners, the material is very durable and designed to last the life of the vehicle.

Sourced from PPG, nearly 5-gallons of material are applied at the end of the assembly line. Sprayed in variable thicknesses (2-mm on the bottom and 1-mm on the sides), the elastomer coating is formed from a two-component system that cures to create a tough slip-resistant coating. In addition to preserving the bed itself, additional benefits of this spray-on bedliner include the dampening of sound, road noise, and vibration from the bed area.

smoketitan · 06-17-2004, 12:25 PM

you know what I have these specs also--I notice them last nite at costco---darn antoher trip to the dealer I guess. I know one guy had his bed replaced

IMADOGMAN · 06-17-2004, 12:53 PM

Quote:

Originally Posted by VShortt

What you are seeing in the second photo is a nick. Although the liner in that spot is still intact, it is pulled back out of the way. Its hard to tell from this angle but if you were to touch it, you could bend that little piece back and forth. It is as if it were nicked with something. I will try both of your suggestions...definitely...but how is it possible for rust to simply be sitting atop the bedliner. Please explain in more detail if possible. Thanks to both of you.

Ferrous metals (iron) will oxidize (rust) when in the presence of Oxygen (aided by the 2 Oxygen molecules in water). If you were to sprinkle some Iron particles on your sidewalk, and they oxidize...you WILL have rust stains on the concrete, and they don't wash off easily. This even happens if you use a lawn fertilizer with Iron in the mix. If some iron particles got into your bed somehow (fertilizer maybe?), you could have a similar occurence.
This may or may not be the cause of your problem, but it is a possiblity. If there is a chip in the bedliner, you may want to have your dealer look at it, for repair or replacement. Look at the other spots with a magnifier, even if they wash off. If there are pinholes in the bedliner, it will just reoccur...Hope this helps. Might also be a good idea to take pictures with a reference point, so that you can see if they reoccur in the same places.

smoketitan · 07-14-2004, 02:17 PM

I took mine in for this problem--they told me it was industrial fallout, and that I had to wash it out --then take pictures again, and then I would have to call Nissan and set up a meeting with a district rep or something??

1Titan · 07-14-2004, 02:38 PM

Quote:

Originally Posted by IMADOGMAN

Ferrous metals (iron) will oxidize (rust) when in the presence of Oxygen (aided by the 2 Oxygen molecules in water). If you were to sprinkle some Iron particles on your sidewalk, and they oxidize...you WILL have rust stains on the concrete, and they don't wash off easily. This even happens if you use a lawn fertilizer with Iron in the mix. If some iron particles got into your bed somehow (fertilizer maybe?), you could have a similar occurence.
This may or may not be the cause of your problem, but it is a possiblity. If there is a chip in the bedliner, you may want to have your dealer look at it, for repair or replacement. Look at the other spots with a magnifier, even if they wash off. If there are pinholes in the bedliner, it will just reoccur...Hope this helps. Might also be a good idea to take pictures with a reference point, so that you can see if they reoccur in the same places.

That is an excellent scientific explanation expressed in laymen terms for all us laymen. I'm not sure on the factory procedure but when you line your bed as an after the fact say for instance Rhino linings don't they grind your bed and remove the paint? Maybe not totally but I would think there would be some area's w/bare metal. Therefore if your lining chips and bare metal is exposed that equals = rust. That's why I never did mine as of yet. When I found out they were going to grind my bed I said forget it. I custom cut marine plywood 1/2" to fit in my bed nicely and I am about to stick on this nice but expensive marine carpet on it and also the sides to give it like a bedrug appearance. You can throw things in get dirt and mud and it washes off. The rug is extremely durable.

chazz1202 · 07-14-2004, 02:46 PM

gonna post pics when its done?

BudmanHemi · 07-14-2004, 03:14 PM

Rhino linings get sprayed over paint as with all liners i think. I know for sure rhino is sprayed over paint, cause i know the guy personally that did mine. I thought you were onto something when you said about the metal, but looking at the process in the link i gave they state its added after paint process. Again i think there is some combinations of metal flakes on surface that cause rust spots, but will never ever get to the bed of your truck. I agree these may annoy you, but i imagine no harm is done to the truck. here is a pic of the rhino liner. Its not this pretty, its raining so it looks shiny. Its actually pretty worn out. I work it pretty hard. Rhino is great, but does not take shovel hits very well. I got a few chunks out of it, nothing to the bed though. Not for sure on linex under working conditions. If some are unhappy with this i am wondering how a very light coating of rhino would react? I have a lifetime garentee where they just spray a light film back on mine to fix chips, and stuff from shovels, and such. I wonder if a light film of rhino to cover any rust spots would help. When they spray it thin its like paint, but will cover. Just a suggestion.

1Titan · 07-15-2004, 04:01 AM

Quote:

Originally Posted by chazz1202

gonna post pics when its done?

I hope so. I had my Titan since mid Jan.04' Did the marine ply right away and have yet to install the marine carpet. I'm hoping to take a day off from work soon and do it then I'll post some shots.

Titangasm · 07-15-2004, 10:52 AM

Aftermarket liner applications include "roughing up" the bed with a sander. So, some of the liner gets sprayed on bare metal and some gets sprayed on the paint. The purpose of roughing up the bed is to provide better and more surface area for adhesion. I'm a LINE-X dealer. I have to say that I've never seen that rust problem. I would tend to think that there is something wrong with the batch of material that was sprayed on your truck.

The two part process referred to above is first to spray the liner for thickness and then to apply the texture. The material used, however, is the same. It's just a change in the spray technique. The two chemicals used are isocyanate and a polyol resin. I have repaired Nissan factory liners and it is VERY thin, about 1/16". There is no way 5 gallons of product is in the truck. LINE-X is sprayed at 1/4" in the bed and 1/8" on the sides and that equals about 5 gallons.

Regarding the post about Rhino/LINE-X:
LINE-X and Rhino differ quite a bit. The biggest difference is that LINE-X contains polyurea and Rhino does not. That does several things: 1. LINE-X's temperature tolerance is 250 degrees and Rhino's is 175. As the temperature of the bed approaches the temp tolerance, it loses its strength. Obviously, you won't have much a problem with LINE-X. 2. Polyurea keeps moisture out of the solution thus making a more dense and solid liner. Less moisture also means better adhesion. 3. Polyurea also makes for a harder liner. The tear strength of LINE-X is 304 pounds per linear inch (pli). Rhino is 145 pli. 4. Polyurea sets up very fast, that's one reason why LINE-X goes on with heat and high pressure. LINE-X dries in about 4 seconds, so you get an even application throughout the bed. Rhino takes a minute or so to even gel, an hour or so to dry. Before it gels, gravity can pull the liner from the top ridges in to the low valleys. Rhino’s Tuff Stuff goes on cold/low pressure and thus has that gouped on look. LINE-X’s high heat/high pressure gives it a very nice texture, it’s sort of like an orange peel. 5. Polyurea makes the liner more chemical resistant, especially to organic oils and solvents.

LINE-X is the only brand with a NATIONWIDE lifetime warranty. Rhino'w is lifetime, but dealer specific.

HOPE THAT HELPS!

gollem15 · 07-15-2004, 11:04 AM

how much would a line X spray cost for a titan bed to be sprayed?

Titangasm · 07-15-2004, 11:14 AM

Prices will vary from dealer to dealer. I would say a range of between $300 and $400 for a Titan.