Gun Bluing your car

rookhawk

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So about six months ago I had this eureka moment when I asked myself, why don't people gun blue their automobiles? I questioned this because I've lived in several terrible climates that use road salt and the result is always the same, cars go to the scrapyard when their frames rust, not due to any mechanical failure.

I looked and looked and it appeared my idea was terrible, since nobody else talked about it online. Then I found out there is a product they are using for this idea and guess what it is? Gun bluing.

It's sold at Ace Hardware and its called "Ospho". $30 a gallon. Its a Phosphorous salt (acid) and it converts Iron Oxide (Rust) into Phosphorous Oxide. It turns out it is a trick of the trade for custom car restorers.

What you do: find an item that is rusty, like your 2 year old car's trailer hitch, or the frame welds on your modern vehicle. Take a plastic or bronze brush and remove as much of the orange oxide as you can and then it it with a rag or air hose. Take a paint brush, paint the area with Ospho and wait a day. When you come back, you blued the part, completely eradicating iron oxide and preventing it from slowly rotting your car.

Afterwards, you have lots of options. 1.) Ignore it. 2.) Hit it with rustoleum to protect the area via a repaint, 3.) If you're dealing with a collector car, you can cover it with a lanolin grease that is popular for spraying car frames in salty areas. 4.) Just zap the bluing with WD40, filthy used motor oil, or whatever petroleum based product pleases you.

That's what I learned. You can blue your car and it kills rust so it can't grow again.
 
I’ve used “rust converter” on a lot of different projects. It works very well. I always covered it after using the products.

I recently used it on this cupola
IMG_6112.jpeg
IMG_6113.jpeg
 
I’ve used Ospho for years. We use it to get the rust off new pipe fencing before we prime and paint it. Good stuff.
 
Bob, it’s a horse barn. But I was actually thinking about doing that in the future. it’s an actual rafter build, not trusses. So the whole second floor is clear to the roof.

heating and cooling then moving mounts from my other barn, a friends hunt camp, a friends pub and my house into it.
 
Bob, it’s a horse barn. But I was actually thinking about doing that in the future. it’s an actual rafter build, not trusses. So the whole second floor is clear to the roof.

heating and cooling then moving mounts from my other barn, a friends hunt camp, a friends pub and my house into it.
We had plans together to build something very similar back in Minnesota but shelved it and moved South;)
 
Looks like good stuff - I'll have to give it a try on something.

I've used oxalic acid to remove or neutralize rust and it leaves a nice gray or sometimes carmel colored surface sort of like browning. I'd like to do a rifle action and barrel just to see how it turns out.
 

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Don't your "blued" gun barrels still rust when they get wet ? :LOL: We use Ospho all the time down here on the Gulf coast. Our air has a salt content in it, and nothing is safe. For vehicles, there are coatings used for the underside and frame. Even Osphoed stuff will eventually rust again if not resealed with a primer and good paint.
 
So about six months ago I had this eureka moment when I asked myself, why don't people gun blue their automobiles? I questioned this because I've lived in several terrible climates that use road salt and the result is always the same, cars go to the scrapyard when their frames rust, not due to any mechanical failure.

I looked and looked and it appeared my idea was terrible, since nobody else talked about it online. Then I found out there is a product they are using for this idea and guess what it is? Gun bluing.

It's sold at Ace Hardware and its called "Ospho". $30 a gallon. Its a Phosphorous salt (acid) and it converts Iron Oxide (Rust) into Phosphorous Oxide. It turns out it is a trick of the trade for custom car restorers.

What you do: find an item that is rusty, like your 2 year old car's trailer hitch, or the frame welds on your modern vehicle. Take a plastic or bronze brush and remove as much of the orange oxide as you can and then it it with a rag or air hose. Take a paint brush, paint the area with Ospho and wait a day. When you come back, you blued the part, completely eradicating iron oxide and preventing it from slowly rotting your car.

Afterwards, you have lots of options. 1.) Ignore it. 2.) Hit it with rustoleum to protect the area via a repaint, 3.) If you're dealing with a collector car, you can cover it with a lanolin grease that is popular for spraying car frames in salty areas. 4.) Just zap the bluing with WD40, filthy used motor oil, or whatever petroleum based product pleases you.

I’ve gone down similar rabbit holes when reading up on high-end car builds and stumbled across this luxury car for rent that dives into luxury car performance. Totally different angle, but it got me thinking about how even the flashiest rides still deal with boring stuff like rust if you’re not careful. Cool to see people tackling it creatively. Might give that Ospho trick a shot on my old hitch, honestly.

That's what I learned. You can blue your car and it kills rust so it can't grow again.
Man, I love this kind of out-of-the-box thinking using gun bluing for car rust is wild but makes total sense when you break it down.
 
It’s about time for me pump diesel fuel in to my cab corners again this year. Stinks like hell so you need to wait for the windows down season.

Such a farmer answer. Whatever needs doing, you guys do it with diesel or kerosene...cheaper. :ROFLMAO:
 
So about six months ago I had this eureka moment when I asked myself, why don't people gun blue their automobiles? I questioned this because I've lived in several terrible climates that use road salt and the result is always the same, cars go to the scrapyard when their frames rust, not due to any mechanical failure.

I looked and looked and it appeared my idea was terrible, since nobody else talked about it online. Then I found out there is a product they are using for this idea and guess what it is? Gun bluing.

It's sold at Ace Hardware and its called "Ospho". $30 a gallon. Its a Phosphorous salt (acid) and it converts Iron Oxide (Rust) into Phosphorous Oxide. It turns out it is a trick of the trade for custom car restorers.

What you do: find an item that is rusty, like your 2 year old car's trailer hitch, or the frame welds on your modern vehicle. Take a plastic or bronze brush and remove as much of the orange oxide as you can and then it it with a rag or air hose. Take a paint brush, paint the area with Ospho and wait a day. When you come back, you blued the part, completely eradicating iron oxide and preventing it from slowly rotting your car.

Afterwards, you have lots of options. 1.) Ignore it. 2.) Hit it with rustoleum to protect the area via a repaint, 3.) If you're dealing with a collector car, you can cover it with a lanolin grease that is popular for spraying car frames in salty areas. 4.) Just zap the bluing with WD40, filthy used motor oil, or whatever petroleum based product pleases you.

That's what I learned. You can blue your car and it kills rust so it can't grow again.
@rookhawk
When I read the title gun blueing you car my mind went into stupid imagination mode.
I was wondering what grade walnut you would use for the steering wheel, gear knob and dash.
What type of scope and mounts you were using or open sights on the front and rear bumpers to aid wheel alignment. The hard part was not knowing the size of the car so I could figure out calibre size for the engine. Was it a 2 liter economy model, a mid bor 350 Chevy or a big boar 480 Chrysler .
Bob
 
Now that looks sharp!

What's in the barn? Sure would make a fantastic trophy room;)
@ActionBob
You could even put a full body giraffe and elephant in a trophy room that size.
You and @Just Gina might need to do a few more trips to fill it tho.
Bob
 
It’s about time for me pump diesel fuel in to my cab corners again this year. Stinks like hell so you need to wait for the windows down season.
@Wyatt Smith
In Australia we use a product called fishalene. It's a fish oil product.
Smells like a a cross between a fanny and a fish that has gone off a bit but works well.
We fill door sills in the bottom of doors and leave it for a few days to run out the weep holes in the bottom of the doors. Leave it to dry and it sticks to metal like shit to a blanket but it will never rust where it's coated. Takes about a week for the smell to disappear.
While it's drying don't put the girlfriend in the vehicle or you will have a lot of questions, your dad would just smile and give you a sly nod tho.
Bob
 

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