Attn Body Men - Baking Soda Blasting

gustaf · 10-19-2002, 05:46 AM

I am thinking of having by car baking soda blasted to remove all the paint prior to re-painting.
After this is done, does the body need to be wiped down with any sort of acid/neutralizer?
Are there any cons to baking soda blasting in the first place?

Thanks!!
-Dave

rstoll · 10-19-2002, 05:49 AM

I think baking soda would be an acid neutralizer.

Superman · 10-19-2002, 06:11 AM

Interesting. The reason we don't sandblast shells is because the sand stays forever. Would this not be a problem with soda? Wouldn't soda leave powder everywhere? Interesting.

Oldporsche · 10-19-2002, 07:59 AM

I dunno, maybe the CO2 beads would be good too.

They would just evaporate!

Good luck,
David Duffield

gadams · 10-19-2002, 08:11 AM

I have used both baking soda and bead blasting to remove paint in order to prepare my car for painting. No matter what process you use to remove the paint the painter should prep the surface prior to applying any primer or paint. The biggest drawback from media blasting is it gets in the nooks and you will find its residue later but it should not interfere with a good paint job. It cost me about 400 to have my car bead blasted.

island911 · 10-19-2002, 08:51 AM

Quote:

Originally posted by rstoll
I think baking soda would be an acid neutralizer.

it goes the other way too . . .you use an acid (hopefully buffered) to neutralize the base (baking soda)

Tyson Schmidt · 10-19-2002, 10:25 PM

Hey Noah, I just scored a kilo of pure uncut Bolivian coke, and half a dozen bi-sexual Swedish Bikini models are coming by my place to help me finish it off. Would you like to come by and help me entertain them? I don't know if I can handle them alone.

BTW, could you help me with some light paint stripping on my car later? Thanks!

A Quiet Boom · A Quiet Boom's Garage

Soda blasting is used in the printing industry to remove ink stains from laser engraved gravure and anilox rolls, it doesn't hurt them at all. I inquired once about using the same sytem on a car body and was assured it would not harm the base metal like sandblasting does but would probably take longer. As an aside the PO of my car walnut shell blasted it and I've have to clean damp walnut debris out of my rocker panels several times, not a good sign since my car is not galvanized. Just a little FYI, hope it helps.

5axis · 10-20-2002, 05:10 AM

Quote:

Originally posted by Tyson Schmidt
Hey Noah, I just scored a kilo of pure uncut Bolivian coke, and half a dozen bi-sexual Swedish Bikini models are coming by my place to help me finish it off. Would you like to come by and help me entertain them? I don't know if I can handle them alone.

BTW, could you help me with some light paint stripping on my car later? Thanks!

Geez guys. You both have been hanging in hollyweird too long. Beware Noah, they might be male bkini models. Now that would be getting real freaky. I guess with enough blue chip on the brain anything is possible.
YIKES

david 89 turbocab

KevinP73 · 10-20-2002, 09:43 PM

You guy's REALLY need to get out and meet some women. Real women !!!!

wcroty · 10-26-2002, 12:32 PM

Baking Soda blasting has had alot of problems. Metal is pores and the soda will be forced into the metal and unless throughly cleaned will travel to the surface at a later date. If you have allready done this, clean with vineger, and follow with a solvet base wax & grease remover. The best type of blasting for this application is plastic media.

Bryan

Zeke · 10-26-2002, 12:57 PM

Bryan, sounds like you have some experiece with this subject. Want to go into it a little deeper? (no pun)

Any one see "A Car is Reborn?" The subject car (E-Type Jag) was blasted with two different processes. I think plastic was one of them, but I don't know if it was used first or second, and I don't know what the other was. Might have been walnut shells.

wcroty · 10-26-2002, 01:16 PM

Yes, I have worked in the refinish business for the past 25 yrs. as a tech, Instructor and now for a major coatings company.
Soda blastings was big about 8 years ago and I have seen failures up to 4 years after the blasting was done. (Stay away from Soda)
Walnut shells is an option but Plastic media is the best, depending on the size it will not hurt chrome, glass or rubber. The important thing is to get the bare metal sealed to avoid oxidation (rust) you must do thsi within 8 hrs @ 45% humidity any longer than this you must re-sand or scuff with a RED pad.
You may use either a acid etch primer followed by a ureathane surfacer or an epoxy primer. Epoxy is a good choice for restoration you can even put plastic body filler over the top of it.

Good luck, Bryan