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Old 09-30-2016, 07:42 AM   #1
Mini-Skoolie
 
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Join Date: Jan 2015
Location: Vermont
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Engine: DT466E
Unhappy Rust Neutralizer or Converter

Hey Ya'll, Kyle up here in Vermont where busses are only found with rust.

I have been researching methods to deal with underbody, frame rail and bracket rust that is pretty damn thick behind the back wheels. I am reinstalling a heater and trailer hitch and think I should do this now...

Every producer of Neutralizer or Converter claims to be "the worlds best"... so my head is spinning.

Step 1. Get as much rust off as possible (this seems to be as universal as masturbation)

Step 2. Rinse (this seems to have as many votes as Trump)

Step 3. Apply my product < Now this is where I need help.

Step 4. Apply undercoating (wait was that included in step 3?)

Permatex Rust Treatement?
Loctite Rust Neutralizer?
VHT Rust Converter?
Rust Converter ULTRA?
"1" Step (The Rust Killer)?
CRC Rust Converter?

HELP! Thanks
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Old 09-30-2016, 09:04 AM   #2
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I'll add to the confusion...

There is also an industrial product by Quest Chemical called "Restore". It is a converter type product that I ran five years worth of tests on while looking for something to prevent further oxidation of rebar (which rusts like crazy). Not only did it work and hold up over time but as far as I can tell is still the only such product on the market that is rated as a final finish. All the others I have seen are only rated as a primer and MUST be coated with another product (paint, epoxy, whatever) to get any benefit. The Quest material contains a very tough polymer that rises to the surface and hardens to a final finish so you do it all in one pass.

I am using it all over my bus.
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Old 09-30-2016, 10:03 AM   #3
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Location: Olympia, WA
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I'm a boat captain, and on a steel boat in salt water rust is always a problem.

The #1 (by far) method to deal with rust is to remove it by sandblasting. Take the metal down to gray. If you do that, then treat and coat the metal, the area is stabilized and the rust will not come back unless the coating is damaged.

#2 method is to remove as much as possible by mechanical means (wire wheel, needle gun, scraping, etc) then treat with Phosphoric acid (Rust-Away or Muratic). Done correctly the acid can take the metal down to gray. Then rinse with water, treat with Corroseal or similar rust converter and paint.

#3 would be to omit the acid (because acid is dangerous and not everybody can be trusted with it). Mechanical removal down to "tight rust", then treat w/ rust killer and paint. The rust killer may or may not kill it all...and it may come back at some point. Diligence is key here

I would recommend this stuff for a coating
http://www.international-pc.com/pds/...ng-usa-ltr.pdf
A quick web search will dig up a supplier in your area.
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Old 09-30-2016, 10:54 AM   #4
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Ospho - OSPHO Rust Converter/Metal Primer | West Marine

You can get it at most home improvement stores including ACE hardware. Its cheap, does a great job and has detailed instructions.

I've used this product on an industrial level to acid etch/clean aluminum stock trailers after welding and before paint. Used to get it in 500 gallon tanks. Works like a charm.
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Old 09-30-2016, 11:11 AM   #5
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Join Date: May 2009
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I have always used POR-15 as a final product... at least I always coated the underside floors of my classic cars with it and didnt do anything else.. it seemed to hold up well through rain and such... I havent used it on the Bus yet except for a few spots where I was working on things and its done well thus far
-Christopher
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Old 09-30-2016, 11:44 AM   #6
Mini-Skoolie
 
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Join Date: Jan 2015
Location: Vermont
Posts: 49
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Engine: DT466E
Quote:
Originally Posted by Tango View Post
I'll add to the confusion...

There is also an industrial product by Quest Chemical called "Restore". It is a converter type product that I ran five years worth of tests on while looking for something to prevent further oxidation of rebar (which rusts like crazy). Not only did it work and hold up over time but as far as I can tell is still the only such product on the market that is rated as a final finish. All the others I have seen are only rated as a primer and MUST be coated with another product (paint, epoxy, whatever) to get any benefit. The Quest material contains a very tough polymer that rises to the surface and hardens to a final finish so you do it all in one pass.

I am using it all over my bus.
Looked around but can't find where to buy this stuff OTC? Any leads?
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Old 09-30-2016, 11:45 AM   #7
Mini-Skoolie
 
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Join Date: Jan 2015
Location: Vermont
Posts: 49
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Engine: DT466E
Quote:
Originally Posted by slaughridge85 View Post
Ospho - OSPHO Rust Converter/Metal Primer | West Marine

You can get it at most home improvement stores including ACE hardware. Its cheap, does a great job and has detailed instructions.

I've used this product on an industrial level to acid etch/clean aluminum stock trailers after welding and before paint. Used to get it in 500 gallon tanks. Works like a charm.
Awesome... this is the type of lead I was looking for... a fraction of the price (assuming it does a decent job) of the small bottles. Then move onto one of the coatings ^ identified above.

Thanks!
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Old 09-30-2016, 12:06 PM   #8
Mini-Skoolie
 
Join Date: Apr 2015
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How much ospho have people been buying to successfully do their floors?
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Old 09-30-2016, 12:14 PM   #9
Mini-Skoolie
 
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Quote:
Originally Posted by Kylebetaclark View Post
Looked around but can't find where to buy this stuff OTC? Any leads?
Try this website:

IndustrialSafety.com - QuestVapco 641016 Restore Rust Converter, 1 qt, 12/Case
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Old 09-30-2016, 03:19 PM   #10
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Join Date: Mar 2016
Location: Greater Houston, Tx.
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OSPHO is very easy to use. I brushed it on our wrought iron fence after a steel wire scrub. The next day I painted it, and it still looks pretty darn good after 7 years of Texas weather.
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