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Index > Body Exterior > Thread: ospho rust converter?
Thread: ospho rust converter?
ericryan


Revvin Up
Posts: 61
posted March 25, 2010 09:53 AM
Edited By: ericryan on 25 Mar 2010 09:54

Ospho rust converter?

Anyone ever used Ospho here on their REPU? I'm thinking about picking up a gallon from the local hardware store. I want to sandblast the underbody and treat it with this stuff, then lay down a few coats of the Herculiner I just bought on the underbody, fenderwells, interior, and the bed.

Just seeing if anyone has experience with this stuff or if someone has a better/cheaper idea. Here's the link to their site:

http://www.ospho.com/index.htm

       
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sparky


Redlining
Posts: 299
posted March 25, 2010 01:53 PM

I used POR-15. Worked great and looked great. Need to apply top coat after application. Used black semi-gloss enamel. I also used Hurculiner for my bed and engine bay. Looks pretty good. For the interior used the cheap rustoleum bedliner. Applied it on floors and roof for sound deadening. Painted right over it. So far so good.

       
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Brad


Rotorhead
Posts: 1672
posted March 25, 2010 03:46 PM

DAYM SPARKY, sounds like you went full tilt on that truck. never thought of bedliner on the roof. if it's rubber based it should be okay. the roof does flex, after i autocrossed a few times a roof bondo harline crack appeared. got alittle bigger each time i auto-x'd. but that ain't stoppin me!

it will be quieter, i put multiple layers of por-15 on the floor and it got quieter afterwards. you can also use rain gutter patches, aluminum backed with adhesive. lowes sells it on the cheap by the roll. i put that in my drivers door and it is quieter, and has more weight so it's more solid sounding when i shut the door.
____________
-brad-
74 REPU Lawn Green
81 Rx-7 racecar. 12a J-
Bridge

       
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EricRyan


Revvin Up
Posts: 61
posted March 25, 2010 09:03 PM

Full tilt is what I'm going after! I want to preserve this truck for decades to come. After a little research Ospho is quite a bit cheaper per gallon and does virtually the same thing as POR-15. I'm going to give Ospho a try and if it doesn't live up to itself then I'll try POR-15 next.

Thanks for the help guys.

       
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Hunter


Hauling
Posts: 178
posted March 26, 2010 03:44 AM

OSPHO

I used OSPHO and it seems to arrest / change the rust ... but I suggest painting over after the catalyst has taken effect. If you just let it sit ... as I have done a few times ... it will just rust again.

       
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sparky


Redlining
Posts: 299
posted March 26, 2010 06:42 AM

The POR-15 is definitley a superior product. I hesitated before buying it on price alone. It's not cheap. However, used only 2 quarts for entire truck. Used it on frame, front suspension, leaf springs, rear axle, and all exhaust heat shields. Still have some left in the fridge. Store it cold. I lays on very smooth with a brush. Do 2 coats. Went right on top of it with black enamel. Looks sweet.

       
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Klaus45


Redlining
On two wheels
Posts: 218
posted March 26, 2010 10:06 AM

RE: OSPHO

Ospho is just phosphoric acid -- you can likely save even more by purchasing generic and diluting as needed.

Prep prior to use by removing as much rust as possible, then apply multiple coats w./ time in between, if needed.


       
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