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Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Body - Exterior> Sandblasting, soda blasting, media blasting?
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Topic Review (Newest First)
07-30-2012 03:27 AM
dodge39
Quote:
Originally Posted by 60metropolitan View Post
we've about reached the point of being ready to have my 60 metropolitan prepped for painting. The big decision is which way to go. I hear horror stories ofr sand blasting warping body panels, soda blasting preventing paint from adhering and the more people i talk to the more confused i am,. Any one have experience with their cars being either sand or soda blasted or some other media? Any input appreciated!
dont sandblast man.i am in the middle of major door shrink work from a supposed good experianced opperator;!!!!!
05-28-2012 05:47 PM
Fisherman Scott
Soda Blasting

Soda blasting is the best way to go if you want to remove all the paint. You must wash the vehicle with a mild soap and water first. You have to make sure you remove all the soda and rinse all the nooks and crannies. Good luck
04-10-2012 09:10 PM
mr4speed Have always had cars media blasted, D/A with 80 grit, then epoxy prime. By the way the first car I started working on when I was 12 was a 56 metropolitan convertible that I still have today. Was a father son project, and I guess that is where it all started.
04-07-2012 10:51 PM
Sanctifier
Quote:
Originally Posted by 41 kustom
Just my new issue of Street Rodder. They have a artical about soda blasting. Check it out.
^ ^ ^ Thanks but we don't get Street Rodder magazine over here.

Any chance of a couple scanned .jpg pix of the relevant pages? Thanks.
04-07-2012 03:13 PM
41 kustom
Soda blasting

Just my new issue of Street Rodder. They have a artical about soda blasting. Check it out.
04-04-2012 09:44 PM
Sanctifier
Quote:
Originally Posted by gatorblaster
http://www.holdtight.com/index.html
I own a soda blasting company. When blasting cars we pressure wash Holdtight 102 immediatly after blasting. We havent ever had flash rust situation.
www.********.com
My project has aluminium fenders and bonnet, so surface "flash" rust is not an issue here.
Being made from VERY thin guage aluminium, soda blasting is the preferred method.

I'm more concerned with the "residue" left by soda blasting.
Two questions: 1) What is the residue left by soda blasting (composition)?

2) Holdtight 102 - Has anyone else tried this after soda blasting to remove the soda residue and prevent adhesion problems?
04-03-2012 10:03 PM
eastbaycustoms the problem with soda is it doesnt get rid of the deep pitted rust. and the orange residue wont be there if you use a media like garnite which we use. also you have to sand or give it an etch after soda blasting. its basically pointless and you dont save anytime.
08-22-2010 02:19 PM
shine i wash every car i blast . nothing wrong with it . if you get an orange tint that means it is clean. epoxy and go. but you leave any acidic residue on it and you will have adhesion problems.
08-22-2010 01:40 PM
2ndchanceauto thats why from them on i mechanically strip exterior and i have been blasting the jambs and hard to reach spots once i put the car on my rotissery, makes life easier. i wish i had found this site when i did that car cause everything i found kept saying to wash with water. didn't sound right to me.

edit i guess i had no problems because i washed the car with detergent and water with a red scuff pad like the wiki article suggested.
08-22-2010 12:52 PM
shine first vinegar is acidic and should never be used on metal . second lacquer thinner is the absolute worst thing to wash with. there is a reason most paint mfg advise against soda. look at the wiki articles that are here. ever year or so some retiree with a soda trailer comes here hawking work and it just ends up in a huge pissing match. use the search feature on this site.
08-22-2010 11:35 AM
2ndchanceauto a road runner i did last winter i had soda blasted. when the car was done i the guy that did it told me to wash it with vinegar (big mistake) flash rusted immidately. luckly i did it on a hood i didn't think i was going to use. after that i washed with soap and water and the wiped the parts down with thinner then a strong wax and grease remover, next i sanded the out side of the panels down wax an grease again the epoxy primed them had no problems (yet).

gatorblaster since they blocked your link can you send it to me.
08-19-2010 03:46 PM
Jon Thanks shine -- these wiki articles may be helpful to you:






...oops, my error
08-19-2010 03:39 PM
shine 4 year old thread .....
08-19-2010 03:27 PM
Jon These wiki articles may be helpful to you:

--Sandblasting
--Soda blasting
--Media blasting
08-19-2010 03:20 PM
gatorblaster
Solution to flash rusting

http://www.holdtight.com/index.html
I own a soda blasting company. When blasting cars we pressure wash Holdtight 102 immediatly after blasting. We havent ever had flash rust situation.
www.********.com
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