From: Chris Brunner (cjbrunner@optonline.net)
Date: Sun Oct 09 2005 - 20:00:14 PDT
I have bought two different types of compounds from either JC whitney or
Edmonds (I think that's the name of it - if anyone is really interested
I'm sure I can find the details). One was the typical spray on compound
that dried out and hardened. The other was a compound that worked like
vasoline - went on wet and stayed that way - it was considered to be
"self healing". Although I'd hate to try and clean up the self healing
- seemed to be a good idea. The mud and crud that embedded in it from
the wheel wells seemed to absord the jelly and turn into one giant oil
based goo that kept water off.
Chris
MV wrote:
>
> Keeping metal from rusting can be viewed two different ways (perhaps
> more). You need to keep water and oxygen from the surface of the
> metal. When both of those things are present steel and iron will rust.
>
> If you have rocks and dirt hitting the surface also, the coating has
> to have some type of surface that will resist abrasion. The heavy
> mastic type coating, like roof cement or roof coating can do that.
> The problem comes in if water and air get behind that stuff. Then
> that type of coating can cause rust to actually accelerate. Wheel
> wheels is a tough problem. That's why a lot of car makers now use
> plastic to line wheel wheels.
>
> If you don't have an abrasive environment like the wheel well
> locations, the best thing to use is a rust preventative coating that
> is similar to the stuff that Ziebart uses. They have an inner panel
> grade that is pretty runny, and a slightly heavier grade that works
> well on exterior underbody stuff. The military uses at least two
> grades also on their trucks also.
>
> Daubert Chemical makes a huge number of different rustproofing
> compounds (including a number of military grade compounds) and but I
> have had some difficulty getting a decent supplier to sell me the
> stuff in smaller quantities. (Like 5 gallon cans) JC Whitney sells
> some decent stuff that I believe is Daubert compounds put into smaller
> bottles that fit their applicator tool set.
>
> Compared to auto paint the stuff is pretty cheap and it works. Highly
> recommended if you are trying to prevent rust.
>
> Dave
>
>
>
> Everette wrote:
>
>> There used to be shops that could spray undercoating on as an
>> aftermarket application, they used a large spray gun much like a pant
>> sprayer, drew coating out of drum and sprayed on underside of
>> vehicle. Nasty job to do, have to wear disposable coveralls, hood
>> over head with outside air source.
>>
>> Give this some thought when applying have coatings as "bed liners"
>> etc. I spent many years in the fertilizer business where rust and
>> corrosion is a tremendous problem. We found that if we put a heavy
>> coat of undercoating or similar materials on truck beds, wheelwells
>> etc.it greatly magnified the rust problem, coating would get small
>> hole in it, let water in and the metal would rust away behind the
>> coating. Be aware that the use of these trucks far exceeds what an
>> individual would subject the vehicle to in most cases.
>>
>> Slip in bedliners will wear paint off truck beds also exposing bare
>> metal to rust.
>>
>> We had best results with the heavy flexible plastic / rubber mats
>> that lay flat in floor, -IF- once in a while we would take them out
>> and wash trash out of truck bed.
>>
>> On the same thread we quit specifying heavy duty frames on trucks if
>> heavy frame was made by bolding or riveting two pieces of frame metal
>> together for rust would get between them and force them apart
>> breaking them.
>>
>> ----- Original Message ----- From: "Dick" <rertman@ix.netcom.com>
>> To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
>> Sent: Friday, October 07, 2005 12:25 PM
>> Subject: Re: [MV] Undercoating for wheel wells, etc.
>>
>>
>>> Stu and gang:
>>>
>>> IMHO, the best stuff is that spray-on liner for pickup truck beds.
>>> I had
>>> mine done at
>>> a local Line-X shop. I had them leave out the non-skid stuff and the
>>> finished product
>>> looks great and protects like crazy. It's washable, too.
>>>
>>> My 2 cents worth.
>>>
>>> Dick
>>>
>>> ----- Original Message ----- From: "Stu" <stuinnh@mvnut.us>
>>> To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
>>> Sent: 07 October, 2005 09:11
>>> Subject: [MV] Undercoating for wheel wells, etc.
>>>
>>>
>>> Hi all!
>>> What type of brushed on undercoating do I see on CUCV's? It looks like
>>> roofing cement? I need to do redo mine.
>>> Thanx as always for everyone's help again.
>>>
>>> "Stu"
>>> Southern NH, USA
>>> "Live Free Or Die"
>>>
>>> MVPA #14790
>>> 1967 M151A1 Jeep 1964 M416 Trailer
>>> 1985 M1008 CUCV Pickup
>>>
>>>
>>>
>>>
>>>
>>>
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>>
>>
>>
>>
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>
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>
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