Does Ospho work? Using Ospho and Rustoleum to stop rust on an old hitch
Vložit
- čas přidán 7. 07. 2022
- I’ve used this method on several projects over the years. It stops rust dead in its tracks every time. I’ve used this on trailers, furniture, car parts, you name it.
- Jak na to + styl
Ospho has Phosphoric Acid in it. It converts the Iron Oxide (rust) into Iron Phosphate.
I just did the exact same thing and used HF Evapo Rust. I left it in solution for a day let if dry, wiped it down and spray bombed it with a primer/ enamel black paint and it came out like new again.
so i can do that to a hitch without the converter does it stop the rust for years or ever i can use tremclad on the hitch and it wont rust for yrs and yrs .may as well just paint the hitch when its brand new then dont have to redo it .
If Ospho is phosphoric acid it is helpfull to know that phosphoric acid works in 70 degree and above temps. To truly stop rust re appearing multiple coats of paint is best after the app of ospho
Thank you for your very helpful hint at temperature affecting it
It's always best to remove as much rust as possible, including using products like this along with more mechanical methods, rinsing it off and degreasing it, and only converting or sealing what remains, with such products AND decent rust-preventing paint.
I bought some Rust-Oleum Rust Destroyer which is green and probably a repackaged Ospho product. The instructions stated to apply their product, wait 30 minutes and rinse off. It never mentioned anything about removing loose rust before applying. Is all of that work necessary???
Wear gloves and protect your lungs when you use OSPHO.
Yeah I should have reiterated that in my video. Stuff is nasty!
@@utjay2008 That white residue can be washed off with water. I usually just paint over it. Make sure you use eye protection. That stuff is an acid.
I would recommend that you scrub your metal pretty good with a wire brush or sandpaper then clean it off with water then clean it with CLR then with water again then wipe on the Ospho with a sponge that way you're not going to be wasting too much of it like the way you're doing with a spray bottle because you're actually using too much of it and wasting it that way which is your prerogative but you're going to be going through your gallon too quick that way but then after you let it dry for a day or a day and a half then paint it.
That’s a good point about the spray and sponge. I use so little that a gallon will usually last me a year or more, so I tend to apply it very liberally. On an open, easy thing to reach like this then I should have used a sponge. I hit it pretty hard with the wire brush before I started rolling the video, but sanding would have helped. Do you use CLR to reduce the amount of ospho to use?
@@utjay2008 I use CLR after I wash the metal with water after I scrub it then I wash it with water again after the CLR and let it dry then I put Ospho on it because I just want the metal to be clean before I put the Ospho on basically so that the Ospho can work as it's supposed to and I want my Ospho to last a while because I have a lot of fence posts and Gates that I'm putting it on but so far the Ospho has been working great for me and it helps the paint stick also which is really great and not just what it does to the rust itself so I'm a big fan of it now for sure.
@@Charliemmafan I'm thinking that you're using some products for what they were NOT intended to be. Ospho is phosphoric acid which NEEDS rust in order to convert the rust into an inert form. You are scrubbing the metal clean of rust with your washing and CLR'ing. That leaves nothing for the Ospho to work on (convert) to an inert form. Then you spray on the Ospho as a PRIMER and top coat it. Ospho ISN'T a primer. Rustoleum sells primers for clean and rusty metals which bond better with topcoats. Your method may work "well" for you but things might work even better if you used the products for what they were intended.
@@STBRetired1 But if all the loose rust isn't removed the paint will be on loose rust which isn't good. Technically I suspect even when "cleaned up" there is plenty of microscopic rust for that OSPHO to do its job.
There’s a spot on the inner fender I’m un able to reach to scrub anything , maybe with a spray only. Any recommendations?
I use a drill and wire brush and clean the metal as best I can to be as clean as possible and wash it with Purple or spray nine and blow it dry and clean then I spray on the Ospho and let it set for 24 hours like the directions say to do and if you have some white spots in places just hand wire brush it off and prime it and after drying spray on 2 or three coats of the paint you prefer to use an let it cure for a day or two and you’re ready to go!!!
Can I use Primer in Aerosol cans ? It says use only oil based primer and paint on the Osphro bottle ?
@@hajileserpud9539 Rustoleum makes spray paints and a lot of them are oil based paints and primers!
Rustoleum paints are mostly oil based paints and they make spray cans of primer that works well with their paints!
@@rogeradkins1785 thanks for the quick reply 🙏😌... Tmrw I will be painting over Osphro I applied into the underside of my car.
So wait, you ALSO prepared this metal with brake cleaner AND "CLR" whatever that is? Why didn't you state that in the video?? Some of us are newbies. Also I read on side of OSPHO bottle it needs to be applied to only surfaces that are COMPLETELY dry. This is a many day process. Thank you.
I had to rewatch it and never found an instance of me implying that I was using “CLR”. I’m not sure what you mean by that. I also use brake cleaner as a standard degreaser for anything oily that I’m going to paint. I wouldn’t consider that a “step” in the process, maybe just part of cleaning/preparing if you’re trying to paint an oily part?
@@utjay2008 He was responding to @Charliemmafan
comment, thinking he was the person in the video.
Any update
It’s only been a few months but it still looks good. Some chips from being beat up but pretty solid. I did a neighbors trailer years ago with this method. It’s holding up solid so far, and it’s stored outdoors. I may do a follow up video just based on that.
Did it bubble up?
Nope! I wasn’t anticipating this video getting this many views. I’m planning on doing a follow up from my very first project I did about 5 years ago. But it’s in another state.
@@utjay2008 I did ospho on metal around windshield but I don't know if I need to clean it off
@@BraddaMarlon oh I gotcha. If there was any residue I cleaned it off before painting. Brake cleaner seems to work well.
@@utjay2008 I cleaned it with acetone then sprayed 2k primer then ran my urethane them set windshield
Seems to be holding up
@@BraddaMarlon good to hear! Stuff really seems to work…
👍
no way can you get rid of rust at the bottom of the tube with that brush and if left untreated it will spread rust all over again. Use a rust converter instead.
Ospho is a rust converter.
Sand blast it..
How about sandblasting then self-etching primer and topcoat that's the way to do it
Your prep is pitiful, all of the cleaning and prep should be done before applying the Ospho. I used Ospho all the time working in the marine industry for 15 years and proper prep is mandatory
Hey do u have to wash if off after applying. Thank u
@@nazimkarim6988
Theres a vw bug guy on utube that doesn't.
What method of prepping do you prefer before using Ospho? Thanks