Ever heard of this?

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sailaway78

sailaway78

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May 11, 2005
3,431
Seidelman S37 Slidell, La.
Just heard a guy talking about an new method for sand blasting. I have used baking soda in the past, and it works pretty good, and is only messy till it rains. This guy was talking about using co2. Apparently you can get it in little tiny frozen pellets. He says it works like a champ, and absolutely no mess. Soon as it hits, it melts and just goes away.
 
C

Captn TJ

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Nov 24, 2012
586
Technique is commonly used to remove mold in homes - on framing lumber and underside of roof decking
 
Allan12210

Allan12210

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Jan 22, 2008
1,665
Hunter 34 Alameda CA
Eco-snow systems have used this technology for many years to clean semiconductor wafers and media for disc drives. Its used in this application to remove surface contamination (oils and particulates). When the dry ice hits a surface it goes directly from the solid state to a gas without passing through a liquid phase. The enormous volume increase sweeps surface contamination away. Never heard of it being used to erode a surface but maybe someone has developed it.
 
kloudie1

kloudie1

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Nov 6, 2006
10,093
Hunter 34 Mandeville Louisiana
We used it successfully in a refinery to decrease the amount of toxic residue going to disposal, when removing old leaded paints.
Didn't cut as well as slag or sand, but it did what we wanted.
 
W

Winkfish

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Jul 28, 2010
914
Boston Whaler Montauk New Orleans
Nice N Easy said:
This guy was talking about using co2. Apparently you can get it in little tiny frozen pellets. He says it works like a champ, and absolutely no mess. Soon as it hits, it melts and just goes away.
Click to expand
A new "climate change" factor!!:D Watch out, or it may get banned!!
 
R

rgarrison@gmail.com

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May 29, 2013
130
catalina 30 dana point
Boeing uses this method to strip paint from reman aircraft, Works great but their technique is different but similar
 
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SVTatia

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Feb 12, 2011
33
Allied Luders 33 Toronto
Dry Ice Blasting

I will be soda-blasting my boat and investigated the dry-ice method. It is much superior as it leaves no mess to cleanup and just as efficient to do it prior to barrier coating.
But, and a big but - 4 times more expensive than soda-blasting. As the operator said, not worth it for this purpose.
 
S

Steve Dion

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Dec 2, 1999
15,184
Hunter Vision-36 Rio Vista, CA.
SVTatia said:
I will be soda-blasting my boat and investigated the dry-ice method. It is much superior as it leaves no mess to cleanup and just as efficient to do it prior to barrier coating.
But, and a big but - 4 times more expensive than soda-blasting. As the operator said, not worth it for this purpose.
Click to expand
No mess? Where does all of that paint go?
 
R

rgarrison@gmail.com

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May 29, 2013
130
catalina 30 dana point
The dry ice method freezes the paint and it (the paint) becomes dust, at least with AC type paint. It is still easier to deal with that chemical strippers.
 
Sumner

Sumner

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Jan 31, 2009
5,254
Macgregor & Endeavour 26S and 37 Utah's Canyon Country
I wasn't there, but the guy who sand blasted our bottom with sand has a rig that also vacuums up the sand as it is applied. He does boat bottoms exclusively and was recommended by a marine repair guy and we would use him again in an instant, but hope we never have to. He was 1/2 the cost of having it sanded off and actually came in under cost and did a great job. When he was done there was just a hint of paint color left. After sand blasting cars myself and having car parts media blasted I was real hesitant to think it would work. Like I said he has equipment that was designed to do boat bottoms so not your ordinary sand blaster,

Sum

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