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12-14-2011, 08:07 AM
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#1
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Rivet Master
1973 27' Overlander
Loganville
, Georgia
Join Date: Nov 2007
Posts: 1,741
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Sand blasting with a soda product?
I plan on sand blasting my 1960 Overlander running gear so I can paint POR15. Since I was renting this blaster I was wondering if I could use Soda (sodium Bicarbonate) to blast the belly pan. I was reading the Soda product was made for sheet metal and soft metals. My belly pan needs some serious cleaing, because of heavy oxidation.
Brian
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Brian & Adrienne
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12-14-2011, 11:21 AM
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#2
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Rivet Master
1997 34' Limited
1970 27' Overlander
South of Atlanta
, Georgia
Join Date: Sep 2009
Posts: 1,709
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Brian,
It should work well. One of the great things about using soda vs other grit media is that it doesn't heat up the metal much. Other media can get quite hot.
__________________
Craig and Carol
1997 34' Excella 1000
1970 27' Overlander, International
2009 Ford F150 5.4L
ProPride hitch with 1400# bars
AIR 41028
TAC GA-8
WBCCI 10199
Past President Southeastern Camping Unit (12)
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12-14-2011, 12:33 PM
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#3
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Rivet Master
1981 31' Excella II
New Market
, Alabama
Join Date: Sep 2011
Posts: 6,145
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POR15 works fine on unpreped rusted metal. If you are going to sand blast you should use conventional painting techniques. By belly pan, you mean the aluminum parts? I have never heard of using soda to sand blast. I am not sure how the remaining soda would effect corrosion. It will attract water and it is a mild base. I have heard of using CO2 pellets to sand blast which leaves no residue. POR 15 is good stuff but it is messy and anything it touches you pretty much have to throw away. Rust particles mixed with POR15 actually make it stronger than just the paint.
Perry
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12-14-2011, 12:45 PM
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#4
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Rivet Master
, Minnesota
Join Date: Aug 2003
Posts: 7,721
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On the belly pan, it will leave a matt finish, not shiny.
Of course the current belly is both dull and corroded so you won't be any worse off.
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12-14-2011, 01:08 PM
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#5
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Rivet Master
1981 31' Excella II
New Market
, Alabama
Join Date: Sep 2011
Posts: 6,145
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Coat the belly with gray POR15.
Perry
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12-14-2011, 05:17 PM
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#6
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Rivet Master
1973 27' Overlander
Loganville
, Georgia
Join Date: Nov 2007
Posts: 1,741
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Thanks guys! I think I will try the Soda on the belly pan. What do I have to lose? The belly pan is 50 years of oxidation. I am not at that stage but I am going to try it when I get to the running gear.
I will use another abrasive on the running gear and Soda on the belly pan
Brian
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Brian & Adrienne
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12-14-2011, 06:41 PM
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#7
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Moderator Emeritus
1964 26' Overlander
1978 Argosy Minuet 6.0 Metre
Anna
, Illinois
Join Date: Sep 2002
Posts: 5,718
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sand blasting with a soda product?
Greetings Brian!
Quote:
Originally Posted by Lothlorian
Thanks guys! I think I will try the Soda on the belly pan. What do I have to lose? The belly pan is 50 years of oxidation. I am not at that stage but I am going to try it when I get to the running gear.
I will use another abrasive on the running gear and Soda on the belly pan
Brian
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I know of at least two Argosy trailer owners who have used soda blasting to prepare their coaches for new paint. Neither of those owners reported any problems with damage to the aluminum, and in fact the resulting paint jobs turned out beautifully. I can't imagine that soda blasting would prove detrimental to the bellypan. There was a discussion on the Forums several years ago about using soda blasting to remove Plasticoat prior to polishing, but I don't know what the outcome of that discussion was or whether anyone actually tried the process prior to polishing an Airstream.
Good luck with your investigation!
Kevin
__________________
Kevin D. Allen
WBCCI (Lifetime Member)/VAC #7864
AIR #827
1964 Overlander International
1978 Argosy Minuet 6.0 Metre
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12-15-2011, 03:44 AM
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#8
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Rivet Master
1973 27' Overlander
Loganville
, Georgia
Join Date: Nov 2007
Posts: 1,741
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Kevin:
The best way for me is to give it a try. It might work out to be good thing other airstreamer's might use in the future. I will be the person who trys it on the belly pan.
I need to pay my contribution fee so I can post more pics.
My son and I are heading to Anna in several days for a short trip. I need to do some work up there.
Brian
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Brian & Adrienne
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12-15-2011, 10:59 AM
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#9
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Rivet Master
2002 25' Safari
1977 20' Argosy 20
northern valley
, new jersey
Join Date: Nov 2008
Posts: 532
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Soda Blasting
Brian,
"Dacks" has some recent hands-on experience with soda blasting, and more, and may be able to help you out with advice or info.
Check out his post here - http://www.airforums.com/forums/f109...tml#post888943
best,
__________________
Joseph & Gabrielle
Simplicity is the ultimate sophistication - Leonardo da Vinci.
WBCCI 2087 - AIR 3144 - TAC-NJ2
https://defendwally.org/
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12-15-2011, 12:27 PM
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#10
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Rivet Master
1965 17' Caravel
1983 27' Excella
Walnut Grove/Laguna Woods
, California
Join Date: Jun 2004
Posts: 1,635
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Soda blasting is used extensively for old cars and car parts as it does the job with minimal damage to the object being cleaned.
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12-16-2011, 08:44 AM
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#11
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Rivet Master
1973 27' Overlander
Loganville
, Georgia
Join Date: Nov 2007
Posts: 1,741
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I noticed the matted finish on the interior when I was checking out Dack's work. For the belly pan that will be fine. I want a shine on my belly pan. I just want the crud off of it. I am liking what I am seeing.
Brian
__________________
Brian & Adrienne
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