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Old 08-11-2008, 04:40 PM   #1
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I did some work removing rust and applying Phosphoric Acid (Ospho), then painting. Pics are before and after. The rust came from road salt when the rig was delivered in winter, on salted roads. The receiving dealer (Lazydays) failed to wash the undercarriage. Rust did not show up in any amount for a few years. Now I'm playing catch up, one section at a time.

Maybe an administrator can make these pics bigger? Thanks.

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Old 08-11-2008, 04:40 PM   #2
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I did some work removing rust and applying Phosphoric Acid (Ospho), then painting. Pics are before and after. The rust came from road salt when the rig was delivered in winter, on salted roads. The receiving dealer (Lazydays) failed to wash the undercarriage. Rust did not show up in any amount for a few years. Now I'm playing catch up, one section at a time.

Maybe an administrator can make these pics bigger? Thanks.

Thudman
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Old 08-12-2008, 05:13 AM   #3
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Well if it's any consolation I am pretty sure you aren't alone in the rust department. Don't think a couple of days (at most) would cause that much salt problems, however moisture and rain will also cause rust to appear on untreated metallic surfaces.

Good luck in your efforts.
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Old 08-12-2008, 05:35 AM   #4
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I cannot tell anything about the photos. Pretty good eyes for an old guy but....
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Old 08-12-2008, 07:24 AM   #5
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">I cannot tell anything about the photos </div></BLOCKQUOTE>


Yeah, way too small, but I don't know how to make them larger; or make them "clickable" to enlarge them. Sorry.

Tom, I respectfully disagree. A good coating of wet road salt, without subsequent chassis washing, will result in substantial corrosion. That salt will cook on the chassis, aided by water from rain soaked roads. Recipe for disaster.

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Old 08-12-2008, 07:55 AM   #6
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I have found the same problem. Most of the time it is steel they have added after the frame was fabricated. They don't clean are paint it, just raw steel.I finally got all of mine for now.Mine was delievered in the summer and I got rust.
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Old 08-12-2008, 08:40 AM   #7
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Thudman, here are your pics:

LF L Channel Rust


LF L Channel Painted


RF L Channel Rust


RF L Channel Painted
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Old 08-12-2008, 12:01 PM   #8
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Oooooo, now I can see them!! Ouch!! Will this stuff you put on the rust kill it?
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Old 08-12-2008, 01:12 PM   #9
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Will this stuff you put on the rust kill it? </div></BLOCKQUOTE>

Phosphoric Acid (brand name I used is Ospho) turns the rust into primer paint...apparently some sort of chemical reaction during the 24 hr cure period. But it's very pungent stuff, so you need to wear eye protection, hat, gloves and a mask. When you get a whiff, you'll know what I mean. I apply a coat of rust-protective spray paint afterward, such as Rustoleum. Don't know if will totally kill the rust, but I'm hoping it will arrest it somewhat.

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Old 08-12-2008, 01:13 PM   #10
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Thudman, here are your pics: </div></BLOCKQUOTE>

Chris: How'd you do that magic??

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Old 08-12-2008, 01:22 PM   #11
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Try POR-15 its a very helpful web site and a very good product
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Old 08-12-2008, 02:31 PM   #12
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Thudman:
Chris: How'd you do that magic??
Thudman </div></BLOCKQUOTE>

you did fine, you just got the URL of your thumbnails instead of the 'medium' or full-size pics. I've PM'd you to continue this dialog on how to do this from a year ago
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Old 08-12-2008, 03:52 PM   #13
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CRS

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Old 08-12-2008, 08:02 PM   #14
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The Steer Safe looks rusted also.....Looks like many hours sitting in the Salt air for this type of corrosion IMHO.

My unit was delivered (and driven by me) in lots of salt covered roads, and my undercarriage doesn't have NEAR the rust this one does. The key to no rust is washing the undercarriage with a pressure washer EVERY time you wash the coach.
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