Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
 


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 06-23-2008, 02:39 PM   #1
Winnie-Wise
 
Thudman's Avatar
 
Join Date: Sep 2003
Location: Destin, FL
Posts: 494
The dealer failed to wash the chassis upon deliv from Winnie in the winter. Rust showed up after about a year, but not bad. Became progressively worse.

After a fun time of preparation (scraping, wire brush, etc) I sprayed phosphoric acid (Ospho) thanks to this forum. Seemed to work well. Put a coat of black paint over it. Hope it holds up. Regretfully, did not take before/after pix.

Thanks to all who contributed to the "rust" forums!

Thudman
__________________
03 Adventurer 38G, W22, 22.5 Whls

Koni FSD's, TracBar rear, SteerSafe, 50A SurgeGuard, Eternabond; 2012 Honda CRV EXL w/Nav & AWD
Thudman is offline   Reply With Quote
Old 06-23-2008, 02:39 PM   #2
Winnie-Wise
 
Thudman's Avatar
 
Join Date: Sep 2003
Location: Destin, FL
Posts: 494
The dealer failed to wash the chassis upon deliv from Winnie in the winter. Rust showed up after about a year, but not bad. Became progressively worse.

After a fun time of preparation (scraping, wire brush, etc) I sprayed phosphoric acid (Ospho) thanks to this forum. Seemed to work well. Put a coat of black paint over it. Hope it holds up. Regretfully, did not take before/after pix.

Thanks to all who contributed to the "rust" forums!

Thudman
__________________
03 Adventurer 38G, W22, 22.5 Whls

Koni FSD's, TracBar rear, SteerSafe, 50A SurgeGuard, Eternabond; 2012 Honda CRV EXL w/Nav & AWD
Thudman is offline   Reply With Quote
Old 06-24-2008, 05:50 AM   #3
Winnebago Master
 
John_Canfield's Avatar
 
Join Date: Jan 2005
Location: Back at the ranch
Posts: 2,041
Don't be surprised if the rust reappears at some point in the future unless you got every speck of it with sanding and wire brush. Even if it does reappear, you're on the right track to keep it under control.

One project I want to tackle when we get back to the ranch is to build a sandblaster for the express purpose of de-rusting some areas of my coach.

Also been thinking about replacing the steel facade in the plumbing bay with aluminum.
__________________
--John

2005 Horizon 40AD, 2005 Jeep Liberty CRD
John_Canfield is offline   Reply With Quote
Old 06-24-2008, 07:22 AM   #4
Winnebago Master
 
smlranger's Avatar
 
Join Date: Sep 2004
Location: Glen Allen, VA
Posts: 2,169
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by John_Canfield:
Don't be surprised if the rust reappears at some point in the future unless you got every speck of it with sanding and wire brush. Even if it does reappear, you're on the right track to keep it under control.

One project I want to tackle when we get back to the ranch is to build a sandblaster for the express purpose of de-rusting some areas of my coach.

Also been thinking about replacing the steel facade in the plumbing bay with aluminum. </div></BLOCKQUOTE>

John,

I got a pretty good media blasing gizmo from Sears for less than $100. If you've got a good air compressor, it works just fine. I got my blasting media from Northern Tool and it very quickly removes all rust.
__________________
'07 Country Coach Allure 470 Siskiyou Summit #31578, Cummins ISL 425; 2014 Ford F150 toad; Air Force One Toad Brake.
Glen Allen, VA; Smith Mountain Lake, VA.
smlranger is offline   Reply With Quote
Old 06-24-2008, 01:22 PM   #5
Winnie-Wise
 
Thudman's Avatar
 
Join Date: Sep 2003
Location: Destin, FL
Posts: 494
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Don't be surprised if the rust reappears at some point in the future unless you got every speck of it with sanding and wire brush. </div></BLOCKQUOTE>

John: I thought the Phosphoric Acid (Ospho) was supposed to make the rust turn into primer, by changing negative electrons to positive (or some such magic).

Thudman
__________________
03 Adventurer 38G, W22, 22.5 Whls

Koni FSD's, TracBar rear, SteerSafe, 50A SurgeGuard, Eternabond; 2012 Honda CRV EXL w/Nav & AWD
Thudman is offline   Reply With Quote
Old 06-24-2008, 04:07 PM   #6
Winnebago Master
 
John_Canfield's Avatar
 
Join Date: Jan 2005
Location: Back at the ranch
Posts: 2,041
Gary - buying a cheap Harbor Freight or Northern Tool sandblaster is absolutely under consideration.

Thud - my opinion is that everywhere the phosphoric acid actually is in contact with will convert chemically to something inert as far as rust is concerned, but the rust that is not contacted by the acid might still be active.

This is just an opinion - I am not a chemist or a metallurgist. I do know rust is extremely difficult to completely eradicate unless you prepare down to pristine and bare metal and then immediately prime or coat.

In any case, your action will either stop or slow down any further rusting, so you did good
__________________
--John

2005 Horizon 40AD, 2005 Jeep Liberty CRD
John_Canfield is offline   Reply With Quote
Old 06-24-2008, 04:09 PM   #7
Winnie-Wise
 
Pubtym's Avatar
 
Join Date: May 2006
Posts: 359
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by smlranger:
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by John_Canfield:
Don't be surprised if the rust reappears at some point in the future unless you got every speck of it with sanding and wire brush. Even if it does reappear, you're on the right track to keep it under control.

One project I want to tackle when we get back to the ranch is to build a sandblaster for the express purpose of de-rusting some areas of my coach.

Also been thinking about replacing the steel facade in the plumbing bay with aluminum. </div></BLOCKQUOTE>

John,

I got a pretty good media blasing gizmo from Sears for less than $100. If you've got a good air compressor, it works just fine. I got my blasting media from Northern Tool and it very quickly removes all rust. </div></BLOCKQUOTE>

Be sure to get safety face plate shield and nasal mask...
__________________
Pubtym, 20th SOS "Green Hornet" , Viet Nam 68-69,
2015 Thor A.C.E 29.3
Pubtym is offline   Reply With Quote
Old 06-24-2008, 05:54 PM   #8
Winnebago Master
 
Join Date: Nov 2005
Posts: 1,520
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Pubtym:
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by smlranger:
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by John_Canfield:
Don't be surprised if the rust reappears at some point in the future unless you got every speck of it with sanding and wire brush. Even if it does reappear, you're on the right track to keep it under control.

One project I want to tackle when we get back to the ranch is to build a sandblaster for the express purpose of de-rusting some areas of my coach.

Also been thinking about replacing the steel facade in the plumbing bay with aluminum. </div></BLOCKQUOTE>

John,

I got a pretty good media blasing gizmo from Sears for less than $100. If you've got a good air compressor, it works just fine. I got my blasting media from Northern Tool and it very quickly removes all rust. </div></BLOCKQUOTE>

Be sure to get safety face plate shield and nasal mask... </div></BLOCKQUOTE>

One with vacuum recovery would be very tempting if not for the price.


See:

http://www.northerntool.com/webapp/wcs/stores/servlet/p...t_6970_138744_138744
__________________
Neil V
2001 Winnebago Adventurer WFG35U
NeilV is offline   Reply With Quote
Old 06-25-2008, 05:17 PM   #9
Winnebago Master
 
John_Canfield's Avatar
 
Join Date: Jan 2005
Location: Back at the ranch
Posts: 2,041
Neil - that's a new model from a less than a month ago when I looking around there. I think it would be fun to try to build one - they aren't at all complicated.
__________________
--John

2005 Horizon 40AD, 2005 Jeep Liberty CRD
John_Canfield is offline   Reply With Quote
Old 06-25-2008, 06:18 PM   #10
Winnebago Master
 
Join Date: Nov 2005
Posts: 1,520
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by John_Canfield:
Neil - that's a new model from a less than a month ago when I looking around there. I think it would be fun to try to build one - they aren't at all complicated. </div></BLOCKQUOTE>

I have been tempted for about 20 years since I saw one in the WWGraingers showroom in Boston.

I has got to be one great vaccuum to deal with the volume/velocity of the air and dust comming out of the nozzle.
__________________
Neil V
2001 Winnebago Adventurer WFG35U
NeilV is offline   Reply With Quote
Old 06-26-2008, 07:09 AM   #11
Winnebago Camper
 
WALLY NJ's Avatar
 
Join Date: Jan 2003
Location: NEW MONMOUTH , NJ
Posts: 40
Hi
Let me tell you about Sand Blasting.
1st of all.......... IT GETS EVERYWHERE.....EVERYWHERE!
no matter how great you mask off an area ,, it will get in somewhere...***
Unless you take the part off and blast it somewhere not near the coach...
2nd you need gloves HOOD... turtle neck mask again,it gets everywhere,if you know what I mean.
3rd DO NOT USE BEACH&lt; POOL OR CEMENT SAND. you will be wondering why you have a raspy cough later, also this little thing called silicosis , but I have only seen that in bridge painters shipyard sandblasters.
Get your self some black diamond or equivalent...manufactured abrasives for sand blasting..........BUT.....
I would seriously look into power washing then hand brusing if the piece is question is still on the coach
The edges of my Adventurer by the compartments was getting flaky , I pressure washed it, then wire brushed them . then sprayed it with that rustoleum that supposedly converts rust to an inert coating ( Seems to be holding up, 5 months or so, but the jury is still out on it)

I have sand blasted quite few things ,,,,,, it does make short work of getting rid of rust,,,but its truly a dirty job,,,, consider the alternatives first.
__________________
Laura & Walt Maraldo

New Monmouth, NJ
WALLY NJ is offline   Reply With Quote
Old 06-26-2008, 02:07 PM   #12
Winnebago Owner
 
Join Date: Sep 2003
Location: Tucson
Posts: 241
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">I sprayed phosphoric acid </div></BLOCKQUOTE>

Thudman, we may have talked about phosphoric acid before, so I'll try to be brief. I had an Ornamental Iron contracting business for 30 years. When we prepared our products for paint, we wiped it thoroughly with a dilute phosphoric acid. That did 2 things for us. It removed any oil, and also any light rust from the surface. It also left an "Iron Phosphate" coating on the raw steel. ( so I am told by my supplier).. The IP deposit was a "binder" for the paint that was applied, and indeed it do so, BUT, if any surface that was cleaned with the PA was not thoroughly coated with paint, it would rust that afternoon.. and thats in "Its a DRY heat" Tucson. In fact, when we got a customer that wanted the product to rust, we washed it with PA, and nothing else, and RUST it would..So, if you are using PA to clean away old rust etc., make certain you get those areas covered completely with new paint..or you will have more rust than ever. Still not very brief, best I can do... ..rgr... On edit, another result of using PA, is that it slightly etches the surface of the treated material, giving the material some "tooth", a better surface for paint adhearance. Probably not a factor in your application.
__________________
2004 Winnebago 33V, WH
2010 Honda CRV
Jim, Lynda, and our 6/2010 model Weimaraner, Quincy, aka Q Man
rgrstndgby is offline   Reply With Quote
Old 06-27-2008, 04:45 PM   #13
Winnebago Owner
 
peter griffin's Avatar
 
Join Date: Aug 2006
Location: Massachusetts
Posts: 233
John you are correct. If you don't get all the rust off it will come back. I used a walmart brand of rust stop/preventer and then primed and painted. The rust came back a year later but not as bad.
__________________
Peter Griffin
2011 JAYCO 24 Z TOY HAULER -
2011 F250 Crew gas
peter griffin is offline   Reply With Quote
Old 06-28-2008, 05:30 PM   #14
Winnebago Owner
 
porscheracer's Avatar
 
Join Date: Apr 2008
Location: Back at the stix'n'brix - East End, AR.
Posts: 197
I've had good luck by power washing, wire brushing away any scale, and primering with Rustoleum Rust Converter (a paint that has phoosphoric acid in it). After 24 hours paint with whatever you want; but make sure the entire area is sealed with the Rustoleum and final coat.
__________________
Norm & Janet

FMCA; WIT; FCOA; Good Sam; Passport
porscheracer is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Horizon Water Compartment Rust Fixed LK23 General Maintenance and Repair 8 07-31-2006 07:43 AM
Rust Freddy General Maintenance and Repair 9 07-16-2006 01:17 AM
Rust in Water Compartment - 05 Horizon LK23 General Maintenance and Repair 8 06-22-2006 12:02 PM
Assistance Please with Severe Undercarriage Rust & Corrosion on New 2005 Coach bbk3 General Maintenance and Repair 79 01-27-2006 04:39 AM
Rust on the underside of coach!! Mike Lutz General Maintenance and Repair 8 07-05-2005 08:17 AM

» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Winnebago Industries or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 05:26 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.