Old new pipe

Talk about what kind of paint is used on smokers and how to apply it.
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Bulldogbacchus
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Old new pipe

Post by Bulldogbacchus » September 29th, 2020, 6:23 am

I'm new here. Thanks for having me.
I am about to start a new build. It's not my first. The cooking chamber will be made from a piece of steel pipe 40" diameter and 12' long. Half inch thick.
The pipe was new 20 years ago and has never been used. My question is how and when to treat the surface rust inside the cc?
(I plan on sandblasting and painting the outside when finished)

Thanks for the help!



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Dirtytires
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Re: Old new pipe

Post by Dirtytires » September 29th, 2020, 10:13 am

Welcome to the group....glad to have you.

Obviously, now is the easiest time to sandblast the pipe. You can do the inside and not have sand in your pit forever and maybe hit the outside as well so welding and cutting are easier during the build. Bad part is you will need to get I’d done again before paint, but only the exterior.

If the interior is relatively clean, you could hit it with a flap wheel but I suspect after laying around for 20 years it needs a little more work.



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dacolson
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Re: Old new pipe

Post by dacolson » September 29th, 2020, 10:41 am

:welcome:
My vote is with Dirtytires. I can't imaging crawling down the inside of that pipe with a flap disk or wire wheel. My back and knees hurt just thinking about it. If you have the equipment or can get it done for cheap, I'd sandblast it now for sure. Only other thought might be to cut your doors first which might make it easier to access the interior if you don't want to crawl inside.
Good luck!


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JKalchik
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Re: Old new pipe

Post by JKalchik » September 29th, 2020, 2:18 pm

Good god, man. A 12' long, 40" diameter, 1/2" wall thickness pipe? HOW MUCH DOES THIS THING WEIGH?

I'd throw down w/ @dacolson and @DirtyTires..... sandblast it now.


"Measure with micrometer, mark with chalk, cut with fireaxe." Ted M., USCG (ret)
"Smoked pork. It belongs in me." Giles L

Bulldogbacchus
has a junk pile that will one day smoke LOTS of BBQ
has a junk pile that will one day smoke LOTS of BBQ
Posts: 66
Joined: September 27th, 2020, 8:37 pm
Title: Member
BBQ Comp Team Name: Not competing yet...
Location: Longview Texas

Re: Old new pipe

Post by Bulldogbacchus » September 29th, 2020, 5:47 pm

It weighs about 2500 lbs, according to the online weight calculator.
Its way bigger than I really need......but what are you gonna do?
Its gonna be a different build than most on here would do. But it should work.
I will listen to the advice given here, and have the inside blasted before proceeding with the build



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Re: Old new pipe

Post by JKalchik » September 29th, 2020, 5:50 pm

As I've got a few minutes, lessee..... pi(d)(l)...... a shade under 126 ft^2, and about 20 lbs/ft^2..... I come up with just about the same number. You're gonna have some serious heat retention in this thing. Just maneuvering it for your build is not gonna be easy. Please don't drop it on your toes.

Go big or go home.


"Measure with micrometer, mark with chalk, cut with fireaxe." Ted M., USCG (ret)
"Smoked pork. It belongs in me." Giles L

Bulldogbacchus
has a junk pile that will one day smoke LOTS of BBQ
has a junk pile that will one day smoke LOTS of BBQ
Posts: 66
Joined: September 27th, 2020, 8:37 pm
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Re: Old new pipe

Post by Bulldogbacchus » September 29th, 2020, 7:16 pm

Lol, I will try to save my toes...all 12 of them

I live in the midst of the East Texas oil field. While it's not what it used to be, there are still many businesses that provide services....

So, I think I will use one of them for cutting the doors and the firebox door

Should we discuss this here or should I start a new thread in the build section

Thanks again



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dacolson
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Re: Old new pipe

Post by dacolson » September 29th, 2020, 8:31 pm

:kewl: New thread.


Dave C - QueNorth Smokers
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Bulldogbacchus
has a junk pile that will one day smoke LOTS of BBQ
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Re: Old new pipe

Post by Bulldogbacchus » September 29th, 2020, 8:39 pm

Got it. Thanks



Bulldogbacchus
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Re: Old new pipe

Post by Bulldogbacchus » September 30th, 2020, 6:12 pm

I retrieved the pipe today. It's 3/8"... not 1/2". Still, should work fine.
It's awaiting the sandblaster. Will have both inside and outside done. Spray the inside with canola oil and paint the outside.



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dacolson
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Re: Old new pipe

Post by dacolson » September 30th, 2020, 8:40 pm

Gonna be sweet


Dave C - QueNorth Smokers
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Re: Old new pipe

Post by Dirtytires » October 1st, 2020, 10:21 am

3/8 is totally fine. Plenty thick enough to retain heat and much easier to work with than half inch. As a bonus, it also just dropped 250 pounds!!



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Re: Old new pipe

Post by JKalchik » October 1st, 2020, 10:52 am

<scratches head> 3/8" is 75% of 1/2"..... should have dropped 600 lbs (unless my math is completely off base....) Still, much easier to work with, for sure.

Just for grins, how are you going to cut access doors, and are you planning on using the cutouts for the doors? The cutouts are gonna take some serious counterweights or healthy springs.


"Measure with micrometer, mark with chalk, cut with fireaxe." Ted M., USCG (ret)
"Smoked pork. It belongs in me." Giles L

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Dirtytires
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Re: Old new pipe

Post by Dirtytires » October 1st, 2020, 12:51 pm

JKalchik wrote:
October 1st, 2020, 10:52 am
<scratches head> 3/8" is 75% of 1/2"..... should have dropped 600 lbs (unless my math is completely off base....)
Thanks for the correction....I will sleep much better tonight.

:BDHorse: :BDHorse: :BDHorse:



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dacolson
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Re: Old new pipe

Post by dacolson » October 1st, 2020, 7:44 pm

Lol


Dave C - QueNorth Smokers
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Bulldogbacchus
has a junk pile that will one day smoke LOTS of BBQ
has a junk pile that will one day smoke LOTS of BBQ
Posts: 66
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Re: Old new pipe

Post by Bulldogbacchus » October 1st, 2020, 11:00 pm

Plasma cut the doors. Have not decided whether to use the cut outs for the doors. I dislike the face full of smoke that I used to get when I raised the door.... however, that smoker was built a long time ago and had 2 3/8” pipe as exhaust. Seriously undersized
With a bigger exhaust it might not be so bad. Anyway, if I use the cut outs, I’ve thought about hanging the as “barn doors” hinged on the ends, instead of on top.

I’ve also considered a couple of sliding panels as doors.



Bulldogbacchus
has a junk pile that will one day smoke LOTS of BBQ
has a junk pile that will one day smoke LOTS of BBQ
Posts: 66
Joined: September 27th, 2020, 8:37 pm
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Re: Old new pipe

Post by Bulldogbacchus » October 1st, 2020, 11:06 pm

Image


Sent from my iPhone using Tapatalk



Bulldogbacchus
has a junk pile that will one day smoke LOTS of BBQ
has a junk pile that will one day smoke LOTS of BBQ
Posts: 66
Joined: September 27th, 2020, 8:37 pm
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Re: Old new pipe

Post by Bulldogbacchus » October 1st, 2020, 11:21 pm

I will start the new thread on the build section. I invite your comments there. I’m probably gonna get flamed, as my plans are a bit “unusual “



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dacolson
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Re: Old new pipe

Post by dacolson » October 1st, 2020, 11:40 pm

Unusual is welcomed. Looking forward to it.


Dave C - QueNorth Smokers
Farmington, MN

Bulldogbacchus
has a junk pile that will one day smoke LOTS of BBQ
has a junk pile that will one day smoke LOTS of BBQ
Posts: 66
Joined: September 27th, 2020, 8:37 pm
Title: Member
BBQ Comp Team Name: Not competing yet...
Location: Longview Texas

Re: Old new pipe

Post by Bulldogbacchus » October 1st, 2020, 11:53 pm

dacolson wrote:
October 1st, 2020, 11:40 pm
Unusual is welcomed. Looking forward to it.
Thank you, sir



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