If you mix black and yellow and get green, then your “black” was not black. It was dark green. Colors can be neutralized and/or blackened to resemble black, while still being a true color. But true black is at the dead center of the color wheel, and it is completely neutral, and contains no color. So if you mix very dark green with yellow, you get a lighter green. If you mix true black with yellow, you get a lighter yellow.
tree68 Murphy Siding How could you tell? Every photo I've seen of those was black and white? Well, there were colorized (tinted) photos... It is a curious problem, though. We rarely think of how colorful things were "back in the day." I've found evidence that my house was once painted peach, or something close, with brown trim. Actually sounds rather attractive.
Murphy Siding How could you tell? Every photo I've seen of those was black and white?
Well, there were colorized (tinted) photos...
It is a curious problem, though. We rarely think of how colorful things were "back in the day."
I've found evidence that my house was once painted peach, or something close, with brown trim. Actually sounds rather attractive.
Yeah, Lamp Black (to name one) ran VERY Blue.
Ergo.......
I'm just going to tell myself that yellow and black combined make dark yellow.
Thanks to Chris / CopCarSS for my avatar.
Murphy SidingWe were taught that mixing the primary colors of blue and yellow gave us green.
And indeed, they do. But many dyes and paints are actually a mix of colors (just like your inkjet printer), resulting in blacks that will fade to other colors. Look up fiber reactive dyes (used by tie dye enthusiasts) - you get several options if you want black dye.
With dehusman's example, it's clear that the black pigment doesn't overwhelm the blue in the paint.
Larry Resident Microferroequinologist (at least at my house) Everyone goes home; Safety begins with you My Opinion. Standard Disclaimers Apply. No Expiration Date Come ride the rails with me! There's one thing about humility - the moment you think you've got it, you've lost it...
dehusman Murphy Siding Just a slight disagreement- I don't think yellow and black together would make green. Don't disagree with me, find Peabody and Sherman, borrow the Way-back machine and go argue with the people who published paint formulas back in the 1800's. Or.... just mix some yellow and black paint:
Murphy Siding Just a slight disagreement- I don't think yellow and black together would make green.
Don't disagree with me, find Peabody and Sherman, borrow the Way-back machine and go argue with the people who published paint formulas back in the 1800's.
Or....
just mix some yellow and black paint:
For real? We were taught that mixing the primary colors of blue and yellow gave us green. Now you're making me doubt the usefulness of my elementary education? What’s next? Are you going to tell me that ‘new math’ was just a passing fad? And how come Mr. Peabody never just up and smacked Sherman and told him to put a cork in it?
Murphy SidingJust a slight disagreement- I don't think yellow and black together would make green.
Dave H. Painted side goes up. My website : wnbranch.com
Overmod... but who would pay extra to get that effect?
CShaveRR We have both silver and black bridges (as well as the "undecorated", or "too-long-ago-decorated" type) here at the Crossroads. The newest big bridge involving railroads is blue. It stands out, for sure! We are due to get a couple of new bridges (expanded, really, but involving plenty of new steel) on our main line when they add a third track for the portions of the line that have only two. Or perhaps the new girders will be pre-stressed concrete. We should know in a year or so.
We have both silver and black bridges (as well as the "undecorated", or "too-long-ago-decorated" type) here at the Crossroads. The newest big bridge involving railroads is blue. It stands out, for sure! We are due to get a couple of new bridges (expanded, really, but involving plenty of new steel) on our main line when they add a third track for the portions of the line that have only two. Or perhaps the new girders will be pre-stressed concrete. We should know in a year or so.
Murphy Siding zugmann Then there's the people that complain about CorTen structures being "rusty". We're starting to see some commercial buildings constructed with panels made out that type steel, sort of pre-rusted. They look like h...... (They look bad.)
zugmann Then there's the people that complain about CorTen structures being "rusty".
Then there's the people that complain about CorTen structures being "rusty".
We're starting to see some commercial buildings constructed with panels made out that type steel, sort of pre-rusted. They look like h...... (They look bad.)
Several years ago, we had a new bank building downtown that was made of pre-rusted metal. It was supposed to never rust beyond that state, but the panels shed a lot of the rust in rainstorms and it stained the sidewalks around the building, which prompted the city to threaten lawsuits to get them cleaned.
The bank make light of it in their advertising, with:
"Its big, its rusty and its yours."
I responded to them with:
"If it was mine, I'd paint it."
The sidewalks still have a rusty brown cast to them.
Semper Vaporo
Pkgs.
Really? Thats weird.
Our Boreal forests look sick, weakened....they need more CO2 to get healthy.
One of the unintended consequences of the Clean Air Act and its successors. When levels of available sulfur in the atmosphere are too low, the COR-TEN oxide layer (at least for A242, and perhaps for A606-4 and A588) doesn't form with proper strength. As other components in the alloy are intentionally reactive to speed the oxide film formation, both mechanical damage (USS calls it 'weather damage') and acid rain keep trying to 're-form' the oxide layer, at the expense of course of the underlying metal. You get not only the splotchy mottling but increased attack into the sections.
Architects and engineers who didn't know the chemistry involved, but thought the Rust Fairy had been blinded by clever metallurgy, were caught short. Their 'response' has been to pre-rust the panels with the right admixture of pollutants, then install them as noted 'pre-rusted', sometimes with a layer of something containing the right ions sprayed on so joints or field mods can 'heal'.
I now note that a lunatic firm has something called "COR-TEN AZP Raw" which is a high-tech coating applied over plain old Galvalume to give that rusty, splotchy '70s effect. De gustibus non disputandum est... but who would pay extra to get that effect?
Firelock76Here in the Richmond area CSX and NS don't seem to do either, there's railroad bridges here that haven't been painted in decades.
Newer brisdges around here are usually that darker red oxide color. Amtrak used to paint their bridges silver (complete with logo).
It's been fun. But it isn't much fun anymore. Signing off for now.
The opinions expressed here represent my own and not those of my employer, any other railroad, company, or person.t fun any
From what I know, silver paint is very dense and provides excellent rust protection, the drawback is it's more expensive than black paint.
So, it's basically end users choice, if you've got the money you go silver, if not, you go black.
Here in the Richmond area CSX and NS don't seem to do either, there's railroad bridges here that haven't been painted in decades.
Jim611On a slightly different subject, why are most railroad bridges in the west painted silver, while most railroad bridges in the east painted black?
Same reason a lot of western roads painted their undercarraiges silver, while eastern roads used black?
Carl
Railroader Emeritus (practiced railroading for 46 years--and in 2010 I finally got it right!)
CAACSCOCOM--I don't want to behave improperly, so I just won't behave at all. (SM)
A fair number are painted silver here - at least last time they were painted. Many are simply rust red...
Seems like I recall reading of a major bridge over the Ohio River that finally got painted silver...
On a slightly different subject, why are most railroad bridges in the west painted silver, while most railroad bridges in the east painted black?
Uhhhh, I think I'll go to Ace Hardware instead.
There's a great story Groucho Marx told about W.C. Fields. Groucho was visiting Fields' house and W.C. said "Hey Grouch, I've got something I've gotta show ya!" They went down to Field's basement. W.C. pushed a button, and a wall panel opened revealing a HUGE secret room stocked with all kinds of liquor.
"What's all this for Bill?" Groucho asked.
"It's here because of Prohibition!" W.C. replied.
"Prohibition? Prohibition ended ten years ago!"
"Yeah, I know, but it might come back!"
If you wish to learn how to make your own paint, here is a very informative video.
https://www.youtube.com/watch?v=hZgl2BfCsBg
For those who might be interested I got the "Recipe For Farm Paint" from a book called "Eric Sloane's America," and if you're interested in Americana (I suspect most of the folks on this Forum are) Eric Sloane is a man you should get to know, he's one of my favorite writers on the subject. If you see any of his books on the subject anywhere grab them, you won't be disappointed!
He was quite the artist as well, here's two sites about him...
www.ericsloane.com
www.ericsloane.org
Well worth looking into.
dehusman David1005 Railroad cars were traditionally painted the color of the contamination that would get on them. Oil and coal cars were painted black, cement hoppers were painted gray, and boxcars were painted to match the rust that would develope with age. Interesting theory, except that railroads started painting boxcars reddish brown when they were made of wood and wood doesn't rust. Actually on the wooden cars the metal parts were painted black. Really the iron oxides were really cheap pigments and since they were already oxidized they didn't change color. The popular early colors were oxide red, yellow/cream, white, black and green. Red/brown, yellow, white and black were natural colors. Cream was white and yellow, green was yellow and black.
David1005 Railroad cars were traditionally painted the color of the contamination that would get on them. Oil and coal cars were painted black, cement hoppers were painted gray, and boxcars were painted to match the rust that would develope with age.
Interesting theory, except that railroads started painting boxcars reddish brown when they were made of wood and wood doesn't rust. Actually on the wooden cars the metal parts were painted black.
Really the iron oxides were really cheap pigments and since they were already oxidized they didn't change color. The popular early colors were oxide red, yellow/cream, white, black and green. Red/brown, yellow, white and black were natural colors. Cream was white and yellow, green was yellow and black.
David1005Railroad cars were traditionally painted the color of the contamination that would get on them. Oil and coal cars were painted black, cement hoppers were painted gray, and boxcars were painted to match the rust that would develope with age.
Didn't the red paint of old contain a lot of lead as a main ingredient to help prevent rust? When I was a kid (long ago and far away...) in the late 60's I lived in Alaska. In the fall, prison inmate work crews would go around and paint all the metal highway bridges. Everyone reffered to the paint used by them as red lead paint. It turned the bridges bright, dark red but they would fade to rusty brown by mid-summer.
Per usual.....very interesting Info/Responses.
Thank You
If it didn't have a "See Rock City" ad, it definitely had this ad: "Chew Mail Pouch Tobacco, treat yourself to the best."
As an aside, I've seen birdhouses shaped like barns with a "See Rock City" ad on the roof. I think that you can find them at Cracker Barrel restaurants.
samfp1943 Firelock76 Everyone may find this interesting, it's an 1835 recipe for farm paint. To Make Farm Paint Skimmed milk, four pounds or one half-gallon Lime, six ounces Linseed oil or neatsfoot, four ounces Color, one and a half pounds And for outside painting, add two ounces of slacked lime, oil, and turpentine. Red oxide was preferred for the color, red clay was also used. So Right ! That concoction home brewed to paint barns seemed to last longer than the actual structures....And then you get down to the itenerant sign painters. Those were the guys who traveled, mostly in the South, finding the exact structures that they could paint and provide signage for the makers of 'Mail Pouch Tobacco', and of course, [See] 'Rock City'! My guess is that the 'Burma Shave' signs were pained in a shop, and sent out with individuals who were paid to plant them alongside highways?
Firelock76 Everyone may find this interesting, it's an 1835 recipe for farm paint. To Make Farm Paint Skimmed milk, four pounds or one half-gallon Lime, six ounces Linseed oil or neatsfoot, four ounces Color, one and a half pounds And for outside painting, add two ounces of slacked lime, oil, and turpentine. Red oxide was preferred for the color, red clay was also used.
Everyone may find this interesting, it's an 1835 recipe for farm paint.
To Make Farm Paint
Skimmed milk, four pounds or one half-gallon
Lime, six ounces
Linseed oil or neatsfoot, four ounces
Color, one and a half pounds
And for outside painting, add two ounces of slacked lime, oil, and turpentine.
Red oxide was preferred for the color, red clay was also used.
So Right ! That concoction home brewed to paint barns seemed to last longer than the actual structures....And then you get down to the itenerant sign painters. Those were the guys who traveled, mostly in the South, finding the exact structures that they could paint and provide signage for the makers of 'Mail Pouch Tobacco', and of course, [See] 'Rock City'! My guess is that the 'Burma Shave' signs were pained in a shop, and sent out with individuals who were paid to plant them alongside highways?
Even though I visited Chattanooga many times when I was in college, I never went to Rock City--I was a poor student, and did not feel that I could afford the admission.
Johnny
Murphy SidingHow could you tell? Every photo I've seen of those was black and white?
wjstix BTW in the 1870's -1880's there were a lot of freight and passenger cars painted straw yellow.
BTW in the 1870's -1880's there were a lot of freight and passenger cars painted straw yellow.
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