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Painting a steam heat riser . . .
Posted by: mspace
Date: October 28, 2023 11:23AM
We're in a pre-war apt, built in 1930, with steam heat. Finally painting the place and thinking of painting the riser in the bathroom black. The room has all the original fixtures with the typical colored tile/ black tile trim, and white wall above.

Is there any technical reason why this would not be a good idea?

It's been painted white, but the conditions turn it yellow due to heat, moisture, and lack of sunlight. Realized painting it black would actually go ok with the trim and solve the "yellowing" issue.

Really don't want to paint it "aluminum" or silver.

All advice and ideas welcomed!
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Re: Painting a steam heat riser . . .
Posted by: btfc
Date: October 28, 2023 11:31AM
Clean off all of the old paint that you can; I’d use a wire brush.



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Re: Painting a steam heat riser . . .
Posted by: rgG
Date: October 28, 2023 11:40AM
Use a good primer before the black top coat.
Not sure how hot it gets. There are high heat paints if heat is an issue.





Roswell, GA (Atlanta suburb)
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Re: Painting a steam heat riser . . .
Posted by: mspace
Date: October 28, 2023 12:55PM
Thanks for responses.

It has just had coats of Rustoleum white on it from before. I had been looking into high heat paint.
An auto place I called said he really doesn't advise using that type of paint indoors, anyway, due to chemicals, etc., compared to interior use paint. Also many high heat paints need to be "high heat cured" as a final step, which not possible in this situation (unless I want to set the building on fire!)

When I spoke to Rustoleum, they said that if the paint is adhering well, which it has all this time, then I don't need high heat paint. Their regular paint withstands up to 200º and has been fine.

I was planning on just making sure there's no loose paint and priming any rust spots. It's not going to be "house beautiful", just as the rest of the apt has it's aging issues. I'm assuming as long as the previous paint is "tight", it should be ok.

Unless I'm wrong about that . . . eye twitch smiley

My main concern was color, since I usually see them painted metallic silver or white.
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Re: Painting a steam heat riser . . .
Posted by: btfc
Date: October 28, 2023 12:58PM
I’ve seen black before.

Do it!
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Re: Painting a steam heat riser . . .
Posted by: rgG
Date: October 28, 2023 01:00PM
To get good adhesion, assuming the paint on there is gloss, you should either prime or lightly sand, so that the paint has a little tooth to it. You can get tinted or some limited colors in primer, which might make going from white to black easier.





Roswell, GA (Atlanta suburb)
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Re: Painting a steam heat riser . . .
Posted by: mspace
Date: October 28, 2023 01:01PM
Quote
btfc
I’ve seen black before.

Do it!

To the paint can, Batman!
burnout smiley
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Re: Painting a steam heat riser . . .
Posted by: anonymouse1
Date: October 28, 2023 01:23PM
The only, small, issue is that paint black will increase radiation from the steam pipe. If the radiators that the steam pipe feeds aren’t putting out enough heat, that will negatively affect them.
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Re: Painting a steam heat riser . . .
Posted by: mspace
Date: October 28, 2023 01:28PM
Quote
anonymouse1
The only, small, issue is that paint black will increase radiation from the steam pipe. If the radiators that the steam pipe feeds aren’t putting out enough heat, that will negatively affect them.

Got it. I knew that color can affect heat radiation. This building runs VERY hot, once things get going for the season. The top 6th floor apts have issues due to the roof, ours on the 4th fl, not so much.

All that's in these very small bathrooms are the riser, which had been quite enough.
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Re: Painting a steam heat riser . . .
Posted by: cbelt3
Date: October 28, 2023 03:00PM
Ever consider a ventilated cover for it ? Metal mesh rolled around it ?
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Re: Painting a steam heat riser . . .
Posted by: Speedy
Date: October 28, 2023 03:07PM
Be careful if old lead paint is an issue.



Saint Cloud, Minnesota, where the weather is wonderful even when it isn't.
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Re: Painting a steam heat riser . . .
Posted by: mspace
Date: October 28, 2023 03:40PM
Quote
cbelt3
Ever consider a ventilated cover for it ? Metal mesh rolled around it ?

It's an idea, but would not be so attractive. winking smiley
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Re: Painting a steam heat riser . . .
Posted by: gadje
Date: October 28, 2023 03:42PM
what is this made of? metal? any rust on the inside?
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Re: Painting a steam heat riser . . .
Posted by: mspace
Date: October 28, 2023 03:46PM
Quote
Speedy
Be careful if old lead paint is an issue.

Maybe in the past, but it's been painted over with Rustoleum Stops Rust at least twice since I've been here for 23 years. I'm going to use that again, but in black. So I think it will be ok. I'll just have to be careful if I'm chipping off loose stuff and I assume the new paint will seal it up. There are no children in this house.
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Re: Painting a steam heat riser . . .
Posted by: mspace
Date: October 28, 2023 03:49PM
Quote
gadje
what is this made of? metal? any rust on the inside?

Definitely metal. I have NO idea of the inside. If anything was wrong with that, it would be management's issue.
This is a rent stabilized pre-war apt in Manhattan. Much sturdier than usual. Heavy plaster walls, metal door and window frames. And much more naturally sound proof. Why many acoustic musicians and singers are in the area.
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Re: Painting a steam heat riser . . .
Posted by: Buzz
Date: October 28, 2023 05:34PM
Beyond lead paint.....
Betcha there's tons of asbestos in those old 1930's era "heavy plaster walls" to remain cognizant of, too.
Be careful!

.....and Go Blue!

                

Add a little sparkle to the old bathroom pipes.

cool smiley
==
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Re: Painting a steam heat riser . . .
Posted by: mspace
Date: October 28, 2023 06:37PM
Quote
Buzz
Beyond lead paint.....
Betcha there's tons of asbestos in those old 1930's era "heavy plaster walls" to remain cognizant of, too.
Be careful!

.....and Go Blue!

                

Add a little sparkle to the old bathroom pipes.

cool smiley
==

Ha! Too bad it's only in a spray.
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Re: Painting a steam heat riser . . .
Posted by: cbelt3
Date: October 28, 2023 07:08PM
Quote
mspace
Quote
cbelt3
Ever consider a ventilated cover for it ? Metal mesh rolled around it ?

It's an idea, but would not be so attractive. winking smiley

I was thinking like this…
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Re: Painting a steam heat riser . . .
Posted by: mspace
Date: October 28, 2023 07:37PM
Quote
cbelt3
Quote
mspace
Quote
cbelt3
Ever consider a ventilated cover for it ? Metal mesh rolled around it ?

It's an idea, but would not be so attractive. winking smiley

I was thinking like this…

That would probably not go so well design wise in the room, but it’s a cool idea.
Also, then it would have to be protected from any wear or corrosion, too.
Black paint would probably be the easiest.
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Re: Painting a steam heat riser . . .
Posted by: mattkime
Date: October 29, 2023 10:56PM
I have dreams of sandblasting and repainting the radiators in my home. Its unlikely to ever happen.



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Re: Painting a steam heat riser . . .
Posted by: mspace
Date: October 29, 2023 11:13PM
Quote
mattkime
I have dreams of sandblasting and repainting the radiators in my home. Its unlikely to ever happen.

I put a marble slab on top of them and am ignoring the paint job. eye twitch smiley
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Re: Painting a steam heat riser . . .
Posted by: anonymouse1
Date: October 30, 2023 10:27PM
In our 1918 home, I stripped one radiator and over it with a wire brush, one time, and painted it. Never again! I built covers instead, and they look fantastic and we’re about a 10th of the effort.
Quote
mattkime
I have dreams of sandblasting and repainting the radiators in my home. Its unlikely to ever happen.
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Re: Painting a steam heat riser . . .
Posted by: btfc
Date: October 30, 2023 11:01PM
There are places that will dip old radiators to get rid of all the layers of old paint.

Doors too.
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