"Ospho" Has anyone used it?
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Posting Guru
Joined: Feb 2001
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From: Keweenaw Bay, MI
"Ospho" Has anyone used it?
Have any of you restorers out there ever used a product called Ospho? It is a liquid, white in color that you brush on to a rusted surface and it turns the rust black supposedly neutralizing the rusting action and sealing the surface. I have heard good and bad and thought I would seek more responses to this product.
Admom
Joined: Feb 2001
Posts: 9,414
Likes: 201
From: Silver Springs
"Ospho" Has anyone used it?
Hi Guys -
Yes, I've used it a lot. All the Ospho I've found is Green.
There's been much talk about it in the Bodywork forum so you may want to check around or do a search in that forum.
If you have any other questions, ask in the Bodywork forum and you should get all the answers you need.
Yes, I've used it a lot. All the Ospho I've found is Green.
There's been much talk about it in the Bodywork forum so you may want to check around or do a search in that forum.
If you have any other questions, ask in the Bodywork forum and you should get all the answers you need.
Fleet Owner
Joined: Aug 2001
Posts: 29,941
Likes: 46
From: Drummonds, TN USA
"Ospho" Has anyone used it?
All that kind of stuff has just gotten very important to me.
But I'd rather clean metal down than change it into something else, if possible.
Dunno what I'm praying for, but there it is....
(I assume most people know about the CORD project, if not it's on my homepage)
But I'd rather clean metal down than change it into something else, if possible.
Dunno what I'm praying for, but there it is....
(I assume most people know about the CORD project, if not it's on my homepage)
Posting Guru
Joined: Sep 2002
Posts: 1,359
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From: Charleston, SC
"Ospho" Has anyone used it?
There are a number of products that brush on rust and turn it into a black inert plastic. The chemical name is Noxorox, and it is sold by about twenty sources.
NAPA auto parts sells 'Extend' which works very well, as does the product from Rustoleum which I can't remember it's name.
Yes they do work.
NAPA auto parts sells 'Extend' which works very well, as does the product from Rustoleum which I can't remember it's name.
Yes they do work.
Fleet Mechanic
Joined: Sep 2002
Posts: 1,769
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From: Gretna ,LA.
"Ospho" Has anyone used it?
It is used very much here offshore,works great too. Turns rust into a paintable surface. Good stuff!
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Posting Guru
Joined: Feb 2001
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From: Keweenaw Bay, MI
"Ospho" Has anyone used it?
I am intending to use it underneath the truck on parts like the oil pan, gas tank and differential housing and other places that are prone to rusting. Im not really concerned about the appearance, just keeping the rust in check.
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Admom
Joined: Feb 2001
Posts: 9,414
Likes: 201
From: Silver Springs
"Ospho" Has anyone used it?
Mantta -
No matter where you're using it, you will still need to put some kind of paint over it otherwise the rust will be right back. For the areas you're talking about, I'd use either POR-15 or Rustoleum.
Greywolf -
Yeah, I checked out you CORD Project. It's gonna be sweet, but I have to say one thing - clean your garage!!
Seriously, I took our truck down to the metal, then used Ospho before primering. We wanted to make sure we had some kind of protection in those unreachable areas along with all those small pitted areas the blasting may have missed.
No matter where you're using it, you will still need to put some kind of paint over it otherwise the rust will be right back. For the areas you're talking about, I'd use either POR-15 or Rustoleum.
Greywolf -
Yeah, I checked out you CORD Project. It's gonna be sweet, but I have to say one thing - clean your garage!!
Seriously, I took our truck down to the metal, then used Ospho before primering. We wanted to make sure we had some kind of protection in those unreachable areas along with all those small pitted areas the blasting may have missed.
Junior User
Joined: Jan 2003
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"Ospho" Has anyone used it?
I've gone back and searched and read the posts related to OSPHO, there are quite a few. Carlene and others like it and it looks like it's well worth using, especially on the hidden areas.
OSPHO can be used down to 36 degrees, so it might be a good first coating for panels when it is too cold to primer.
Seems it can be sprayed on and left as a primer, or sprayed on and washed/wiped off as a etch. Can OSPHO be welded thru?
Alan P
OSPHO can be used down to 36 degrees, so it might be a good first coating for panels when it is too cold to primer.
Seems it can be sprayed on and left as a primer, or sprayed on and washed/wiped off as a etch. Can OSPHO be welded thru?
Alan P
Admom
Joined: Feb 2001
Posts: 9,414
Likes: 201
From: Silver Springs
"Ospho" Has anyone used it?
Hi Alan -
Yes it can be welded. Then just wire brush the welded area and re-Ospho that area when you're done. Also, keep an eye out for the slag. Those tiny little critters attach to everything along with being unsightly little bumps, they will start to rust.
Yes it can be welded. Then just wire brush the welded area and re-Ospho that area when you're done. Also, keep an eye out for the slag. Those tiny little critters attach to everything along with being unsightly little bumps, they will start to rust.
Admom
Joined: Feb 2001
Posts: 9,414
Likes: 201
From: Silver Springs
"Ospho" Has anyone used it?
Hi Gary - Welcome to FTE & the Bodywork forum.
This is kind of a "Which Came First" question.
There doesn't seem to be any agreed upon answer to this. Some say "filler then primers" others are "primer, filler, primer".
Personally, I'm going with the primer then filler then primer. As for the Ospho, I just treated it as if it was bare metal and went from there.
Hope this helps.
This is kind of a "Which Came First" question.
There doesn't seem to be any agreed upon answer to this. Some say "filler then primers" others are "primer, filler, primer".
Personally, I'm going with the primer then filler then primer. As for the Ospho, I just treated it as if it was bare metal and went from there.
Hope this helps.
1st Gear
Joined: May 2023
Posts: 1
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Hello everyone,
I hope this message finds you all in good health. Recently, I came across two products, OSPHO and Rust Converter, that claim to have effective rust transformation and metal surface restoration properties. However, I find myself in a dilemma and would greatly appreciate your advice on this matter.
If any of you have firsthand experience using either OSPHO or Rust Converter, I would be grateful to hear about the results you achieved. Specifically, I am interested in learning which product proved to be more effective in transforming rust and providing long-term protection for metal surfaces.
Your valuable experiences and recommendations will play a crucial role in guiding my decision-making process. Thank you all in advance for your kind assistance.
Best regards,
Artina
I hope this message finds you all in good health. Recently, I came across two products, OSPHO and Rust Converter, that claim to have effective rust transformation and metal surface restoration properties. However, I find myself in a dilemma and would greatly appreciate your advice on this matter.
If any of you have firsthand experience using either OSPHO or Rust Converter, I would be grateful to hear about the results you achieved. Specifically, I am interested in learning which product proved to be more effective in transforming rust and providing long-term protection for metal surfaces.
Your valuable experiences and recommendations will play a crucial role in guiding my decision-making process. Thank you all in advance for your kind assistance.
Best regards,
Artina