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Rustproof frame?

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Most if not all RV frames are powder coated. ...... powder coat is abrasion, corrosion and chemical resistant. This does not mean that it will not crack, peel, chip, scratch, or corrode. It just means that it is more resistant than some other finishes. There has been a misconception that powder coat is crack, chip, peel, abrasion, corrosion, and chemical proof. That is sadly not the case. Powder coating is stronger than paint but given the environment it is subjected to, it can only resist so much.


Our Rv has never seen winter or high salt areas and rust on the frame is practically nonexistent..

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On our motorhome that we were full-time in for 11+ years, I did have the entire thing undercoated and that was pretty effective and could be on a trailer too if done well with high quality materials. While that sort of thing does look nice, in all of my years of RV travels, I can't remember ever hearing of a structural problem that was caused by rusting of the RV frame. I'm sure that it might happen if you were in a place where things are exposed to salt air all of or most of the time, but I can't recall hearing of that issue either. I really think that most of us who have done things in the area of frames have done so mostly for cosmetic reasons.

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I see by your avatar that you have a 5th wheel, what I did with ours is clean and paint the pin area and any frame that can be seen with Rustolium and the rest I used rubberized black undercoating. We have a white frame so any exposed frame areas showed up rust.



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