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Liquid nitorgen, vids/pics (updated)

Posted by czwalga

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czwalga
steve czwalga
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Location: Pittsburgh, PA
Join Date: 09/16/2011
Age: Settling Down
Posts: 376

Rally Car:
95 awd celica

czwalga

Re: Liquid nitorgen, vids/pics (updated)
November 05, 2013 12:06PM

Registered: 09/16/2011
Posts: 376

Quote
BillyElliot
I cleaned off all my gunk under the Civic with this:

http://www.harborfreight.com/power-tools/oscillating-tools/oscillating-multifunction-power-tool-60428.html

$20 and the thing is still going strong. I've had to buy several of the replacement scraper blades, but the tool itself keeps going. Sure, it takes a while and your hands get a bit numb from all the vibration, but it took me an evening to remove the underfloor, probably another evening or two to do the wheel wells. I was lucky and my in car sound deadening just peeled off in chunks so I just wire wheeled the seam sealer.

I have one of those, I use it for windshields. I have to say the LN is well worth the money compared to using one of those for the undercoating.

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Carl S
Carl Seidel
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Location: Fe Mtn, MI
Join Date: 02/10/2006
Age: Midlife Crisis
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1993 honderp

Carl S

Re: Liquid nitorgen, vids/pics (updated)
November 05, 2013 12:09PM

Registered: 02/10/2006
Posts: 765

Quote
danster
It was 23f here last night.
I may embrace this cold winter weather and get the rest of the tar sound proofing off this VW shell I have here.

Edited to correct the deg C to F.

I found that it needs to get really cold to get that stuff to come off easily in the winter. The coldest night I tried on the volvo last winter was -12F, then it was pretty easy to scrape it off with a putty knife. Much above 0 and it wasn't frozen enough.

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Paddy1337
Tim Patrick
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Paddy1337

Re: Liquid nitorgen, vids/pics (updated)
November 05, 2013 11:50PM

Registered: 01/26/2011
Posts: 175

are you guys doing the whole underbody, or just areas you plan to be welding things?

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czwalga
steve czwalga
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Location: Pittsburgh, PA
Join Date: 09/16/2011
Age: Settling Down
Posts: 376

Rally Car:
95 awd celica

czwalga

Re: Liquid nitorgen, vids/pics (updated)
November 06, 2013 06:26AM

Registered: 09/16/2011
Posts: 376

Entire under body. Never know where you're going to need to weld, getting that stuff off ahead of time is nice. Plus when you're stitching the inside and welding the cage in you're not dying of smoke inhalation from the bottom catching on fire every 2 seconds.

Lots of advantages.

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NoCoast
Grant Hughes
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Location: Whitefish, MT
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NoCoast

Re: Liquid nitorgen, vids/pics (updated)
November 06, 2013 11:41AM

Registered: 01/11/2006
Posts: 6,818

Quote
czwalga
Entire under body. Never know where you're going to need to weld, getting that stuff off ahead of time is nice. Plus when you're stitching the inside and welding the cage in you're not dying of smoke inhalation from the bottom catching on fire every 2 seconds.

Lots of advantages.

My lungs kinda hurt today from all the burning shit last night while Scott was welding the cage feet into the Kern's BMW GTS car. Sucks doing it at 10 pm when it's 20 degrees outside so you don't wanna just open the door fully...

Grant Hughes

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john vanlandingham
John Vanlandingham
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Re: Liquid nitorgen, vids/pics (updated)
November 06, 2013 12:03PM

Registered: 12/20/2005
Posts: 14,152

Quote
NoCoast

Quote
czwalga
Entire under body. Never know where you're going to need to weld, getting that stuff off ahead of time is nice. Plus when you're stitching the inside and welding the cage in you're not dying of smoke inhalation from the bottom catching on fire every 2 seconds.

Lots of advantages.

My lungs kinda hurt today from all the burning shit last night while Scott was welding the cage feet into the Kern's BMW GTS car. Sucks doing it at 10 pm when it's 20 degrees outside so you don't wanna just open the door fully...

Burn some other shit and counter it----or don't care..
like

wow

(hack!)

John Vanlandingham
Sleezattle, WA, USA

Vive le Prole-le-ralliat

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CALL +1 206 431-9696
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is 3 hours behind Eastern Standard Time.

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NoCoast
Grant Hughes
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NoCoast

Re: Liquid nitorgen, vids/pics (updated)
November 06, 2013 01:35PM

Registered: 01/11/2006
Posts: 6,818

Quote
john vanlandingham
Burn some other shit and counter it----or don't care..
like
(hack!)

Scott said, as he lit up a cigarette after, I feel like we should smoke more to give a good layer of protection from all this nasty shit.

We get really big dewars of Argon at the lab for the mass spec. I may enquire about smaller liquid nitrogen dewars to do stuff like get glue and tar off areas that cage feet go onto.

Grant Hughes

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Iowa999
no-one of consequence
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Iowa999

Re: Liquid nitorgen, vids/pics (updated)
November 07, 2013 08:46AM

Registered: 01/06/2013
Posts: 395

Put a warm-mist humidifier in the shop, as near as possible to where you are working. The water molecules "grab" the nasties from the air and drop to the floor.

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MattWatson
Matt Watson
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Re: Liquid nitorgen, vids/pics (updated)
November 07, 2013 10:50AM

Registered: 04/17/2013
Posts: 151

Quote
NoCoast
Scott said, as he lit up a cigarette after, I feel like we should smoke more to give a good layer of protection from all this nasty shit.

I ended up wearing an organic respirator for some sections (like strut towers) where smoke would pour through the openings right into my lungs... Started after one session where a little blood was coughed up winking smiley