Rust
- Thread starter DONLI
- Start date
Good luck with that, oxidized steel and cast iron is wasted to the depth of the rust. Products sold that say otherwise are just snake oil. Yes, you can treat rust to better hold paint but it is best to remove it or replace the part. Removal products can be had at any hardware store and we can't say what is best without seeing the project.
NCL4701
Well-known member
Equipment
L4701, T2290, WC68, grapple, BB1572, Farmi W50R, Howes 500, 16kW IMD gen, WG24
Mechanical removal of scale (wire brush, needle scaler, etc.) then Ospho (phosphoric acid) for chemical stabilization to allow for painting.
www.acehardware.com
That’s a general answer to a general question. There are other products for the chemical stabilization step, but whatever it is needs to be some sort of acid.
Skyco 1 gal Ospho Surface Prep Mfr# GALLON - Ace Hardware
Get metal surfaces ready for a fresh coat of paint with the Skyco OSPHO 1 gallon Rust Remover Treatment. By converting rust into iron phosphate, this treatment creates a rust-retardant surface that is a great base for paint on both interior and exterior surfaces.Find the OSPHO SURFACE PREP GAL...
www.acehardware.com
That’s a general answer to a general question. There are other products for the chemical stabilization step, but whatever it is needs to be some sort of acid.
Ospho. Buy it by the gallon. Prices vary, be sure to shop around. I put it in a spray bottle and spray it on enough to dampen the area after all loose material is brushed off.
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Remove by sand blasting, then dip the parts in phosphoric acid, then epoxy primer and top coat paint.
For sealing rust (in gaps) I use Owatrol oil (linseed oil) and corrosion protection wax.
For sealing rust (in gaps) I use Owatrol oil (linseed oil) and corrosion protection wax.
Blue2Orange
Well-known member
Equipment
BX2380 with LA344S & QH05. SB1051. SG0554. BB1248. RB0560, Vassar dirt bucket
Depending on what type of rust. That is, just surface v. deep rust.
When talking with the body shop about dealing with my developing rust issues on the pickup rear wheel openings. He noted not much can be done about the rust that is starting from the inside in. Cut and replace the damaged steel. Why the paint bubbled and flaked off exposing the rust.
Surface rust on the implements. I just sand, brush away the loose rust and hit it with a OsPho like substance. Wait a day or so and prime/paint. On my old snowblower to deal with the gravel dings in the box, impeller, and auger blades I just washed it at end of the season and broke out the spray can of Rustoleum. Worked fine for the +20 years of use before trading it in for the new BX's snowblower. Almost made it through the season without blowing any gravel into the woods. Did the same with the LP snowblower. Just not Kubota orange. Generic orange rustoleum.
When talking with the body shop about dealing with my developing rust issues on the pickup rear wheel openings. He noted not much can be done about the rust that is starting from the inside in. Cut and replace the damaged steel. Why the paint bubbled and flaked off exposing the rust.
Surface rust on the implements. I just sand, brush away the loose rust and hit it with a OsPho like substance. Wait a day or so and prime/paint. On my old snowblower to deal with the gravel dings in the box, impeller, and auger blades I just washed it at end of the season and broke out the spray can of Rustoleum. Worked fine for the +20 years of use before trading it in for the new BX's snowblower. Almost made it through the season without blowing any gravel into the woods. Did the same with the LP snowblower. Just not Kubota orange. Generic orange rustoleum.
Russell King
Well-known member
Lifetime Member
Equipment
L185F, Modern Ag Competitor 4’ shredder, Rhino tiller, rear dirt scoop
I used this “system” for the inside of the fuel tank
Worked really well.
I will probably use it on other rusty implements but it must be top coated if exposed to sunlight.
The primer for rusted surface is thin but very, very hard when dry. Probably won’t get scratches through it very easily.
The cleaner and rust blaster took all the rust off down to clean steel.
KBS Coatings | Factory Direct Rust Prevention, Tank Sealer & Clear Coats
KBS Coatings manufactures premium rust prevention paints, gas tank sealers, 2K clear coats, and high-temperature coatings. Factory direct. Free shipping over $75. Made in the USA.
www.kbs-coatings.com
I will probably use it on other rusty implements but it must be top coated if exposed to sunlight.
The primer for rusted surface is thin but very, very hard when dry. Probably won’t get scratches through it very easily.
The cleaner and rust blaster took all the rust off down to clean steel.
Ospho works well to stop the corrosion process and then paint over that. The formation of FePO4 forms an effective barrier to further corrosion. Oshpho is cheap, readily available and formulated to remove all the guesswork so what's not to like. You can even use it on clean steel prior to painting and it's a lot cheaper than having something galvanized, although it doesn't offer the durability of hot dipped galvanizing.
The last thing I would ever do with rust is to SEAL it. That's just giving it permission to continue to destroy your steel, and providing a nice cover so you don't see it happening.
That's why I don't like powder coating. It will eventually fail, and when it does, it conceals the damage until it's pretty far along. Stealth destruction.
Paint will fail sooner, but it won't lie to you and say everything is fine the way powder coating will. It will show the rust almost as soon as it starts, allowing you to clean it up and repaint before serious damage is done.
That said, if you can't get to it to clean it up, try Fluid Film. It will penetrate and stop the rust. Cheap, easy.
I have no idea if it's better than ospho, as I have not compared them. I just know it works well, is easy to use, and it's comparatively cheap.
That's why I don't like powder coating. It will eventually fail, and when it does, it conceals the damage until it's pretty far along. Stealth destruction.
Paint will fail sooner, but it won't lie to you and say everything is fine the way powder coating will. It will show the rust almost as soon as it starts, allowing you to clean it up and repaint before serious damage is done.
That said, if you can't get to it to clean it up, try Fluid Film. It will penetrate and stop the rust. Cheap, easy.
I have no idea if it's better than ospho, as I have not compared them. I just know it works well, is easy to use, and it's comparatively cheap.
I'm in your camp too re powder coat and it was one of the reasons why I ordered a painted gooseneck trailer from Kaufman.
I have new front and rear bumpers to install on the F-450 this summer and I'm using a Rustoleum red primer (can and spray) and then Kubota grey (also can and spray) over that. The bumpers on my F-250 will be coming off this summer followed by sandblasting to remove what's left of the powdercoating and then painted using the same process as the F-450 bumpers.