2016 Winnebago View 24J Passenger-Side Underside Corrosion

[dchan08]

Hi all

My newly purchase 2016 Winnebago View 24J has the some aluminum oxidation/corrision problems.

My basement compartment roof or underside floor from the front to back cabin on the passenger side is corroding away (see pics)... there is corrision in the rear wheel well and generator compartment. driver side seems OK for now.

I don't know why this is happening as the kitchen sink/floor and the corner bed/water holding tank floor are dry.

Just seeing if anyone has the same issue and was done to fix or remediate the issue.

there was a 2022 post but no final outcome
- RV Exterior Underside Corrosion

any advice would be great. dave

 

[Eagle5]

Seal all seams with 100% Silicone Sealer. Those compartments tend to leak, so if you keep it from getting wet inside the compartment, it should stop further corrosion.

 

[dchan08]

I can seal the compartments but how to I repair the existing corrosion/oxidation that is there now. Also, that 1st photo is actually the rear wheel well... so it is open to the elements.

 

[Eagle5]

POR 15 is pretty good, but you must wear gloves and an Organic Respirator to apply it.

Amazon.com

 

[Morich]

The problem with coatings of most types I have seen is the requirement to remove all rust first! See the little note hiding on the can above? Nice little trick they played with the black patch?
The problem with what you have is that there is not much left once you get in there and remove the rust from material that thin! I never went further with the issue but I suspect there is a basic problem with the adhesive used to bond the super thin metal to the underlying foam. Bad chemical reaction that eats the metal? See where the black stuff has been globbed on to cover at one time? After trying that cure once, I decided to cut my losses as the whole sheet looked like it was going to do the same thing and I did not want a lifetime fight on an issue with no cure!
My thought is that there is no way to seal it as the problem is inside, not coming from outside. The basic material was a mistake!

 

[Luvnlife]

My 19J had a similar problem in the right side back compartment. Like Morick said, that medal is thin. I cut mine out with a razor knife. Underneath is plywood. Mixed a little sand for texture with a quality exterior paint, taped the side wall and applied it. Been 3 years and it is holding up great.

 

[LTMrvup]

Hi all

My newly purchase 2016 Winnebago View 24J has the some aluminum oxidation/corrision problems.

My basement compartment roof or underside floor from the front to back cabin on the passenger side is corroding away (see pics)... there is corrision in the rear wheel well and generator compartment. driver side seems OK for now.

I don't know why this is happening as the kitchen sink/floor and the corner bed/water holding tank floor are dry.

Just seeing if anyone has the same issue and was done to fix or remediate the issue.

there was a 2022 post but no final outcome
- RV Exterior Underside Corrosion

any advice would be great. daveView attachment 2503558View attachment 2503559View attachment 2503560View attachment 2503561

 

[LTMrvup]

Amazon.com

 

[RayIN]

A combination of the presence of water, aluminum that's bare on one side, and skin voltage, can eat away aluminum rather quickly.
Run a quick test with a VOM from that panel to the ground/earth, if your meter reads any voltage, you found the cause of the corrosion; which is stray voltage and water intrusion on the aluminum.