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Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 9,125
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Soda blasting case question
In the past, I've soda blasted my 3.2 intake that was powder coated. It took a ton of media to complete, but was happy with the results leaving a nice, clean, natural looking aluminum.
Anyways, was wondering if soda will take the hard-coated corrosion off my cases with minimal effort? Meaning, will it clean this corrosion at all? If so, will 1 - 50lb bag of soda do it? More? I didn't neutralize the caustic chemicals in Easy-Off the first time I cleaned the cases, and the next day, it developed a thick layer of corrosion. The cases looked brand new the day I did it though. Very disappointed and was a learning lesson for sure! See photo for reference. Reason for the question is, is I have to drive 2 hours away to use my fathers blaster and would hate to waste my time and money if it can't be done reasonably. Trying to plan ahead. Whatcha say PP braintrust???? Anyone done this? TIA  
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Cory - turbo'd '87 C3.2 Guards/Blk, 3.4, 7.5:1 CR P & C's, 993SS cams, Borg-Warner S366 turbo @ 1.2-1.5 bar, depending on mood  , Treadstone full bay IC, 70mm TB, TiAL F46 WG, HKS 1 1/2" BOV, twin 044 pumps, MicroSquirt AMP'd w/GM smart coilpack, Bilstein coilovers, Tramont wheels (285's rr, 225's frt), Big Reds frt, 993 rr., tower brace, MOMO wheel
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02-13-2017, 07:30 AM
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Join Date: Jan 2015
Posts: 1,499
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The outcome with soda is more dependent than glass on the pressure at the tip and the size of the tip and the cfm of the compressor. In my experience a little 3hp 9-10 cfm comp. will give marginal results. I have 8hp of compression (two comp in parallel going into one 60 gal tank) and I use a med tip gun from tptools and I run 110 psi to the gun. I get good results with that set up but it def. takes longer than with glass. Now I'm talking a siphon gun, the kind you see in a cabinet. If you are talking a pressure gun like is used outside with a pressurized tank that holds the media you will get better results than with a siphon gun. What size is your Dad's comp? 50 lb should do it.
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02-13-2017, 11:12 AM
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Join Date: Dec 2014
Posts: 13,860
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There are a couple different grades of soda but boosted is right. It really comes down to cfm's I wouldn't even bother if you can't get a hold of a good compressor. Look in your area for someone who does dry ice blasting. It will run you $150 to $200 but well worth it if you can't find a worthy compressor.
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02-13-2017, 11:20 AM
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Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 9,125
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Let's just say I have enough compressor to drive a small factory!
1 large body shop industrial horizontal-tank compressor daisy chained to 2 - 80 gallon tank with 2-stage compressors. My dad's resto shop doesn't run out of air.
Last edited by Tippy; 02-13-2017 at 05:05 PM.. |
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02-13-2017, 12:33 PM
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Mighty Meatlocker Turbo
Join Date: Apr 2016
Location: North TexASS
Posts: 18,533
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Quote:
!!! 
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02-13-2017, 03:40 PM
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Join Date: Jan 2015
Posts: 1,499
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If you have any soda left over you can use it as toothpaste..
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02-13-2017, 06:18 PM
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Mighty Meatlocker Turbo
Join Date: Apr 2016
Location: North TexASS
Posts: 18,533
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^^^
I bet that JustTheTIPpy is thinking that blasting soda won't cut it with regard to cleaning my trap - probably need industrial bleach, or sulfuric acid, or both !!! |
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02-13-2017, 07:11 PM
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Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 9,125
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Lol
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02-13-2017, 07:51 PM
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Registered
Join Date: Jan 2015
Posts: 1,499
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Rawknee I think you need to try some oven cleaner..
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02-14-2017, 06:28 AM
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Mighty Meatlocker Turbo
Join Date: Apr 2016
Location: North TexASS
Posts: 18,533
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^^^
I think the oven cleaner might put itself right back in the can!!! |
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02-14-2017, 10:43 AM
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Registered
Join Date: Jul 2013
Location: Brisbane, Australia.
Posts: 2,603
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A buddy of mine has a older mag case engine he is about to rebuild. It has a little corrosion inside the case and grime that is baked on. Would it be safe to use soda or even dry ice on the inside of the case?
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03-19-2017, 04:15 PM
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Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 9,125
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Quote:
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03-19-2017, 06:23 PM
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Join Date: Jan 2015
Posts: 1,499
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Make sure to flush the oil galleys well afterwards if using the soda.
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03-20-2017, 03:44 AM
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Join Date: Jul 2013
Location: Brisbane, Australia.
Posts: 2,603
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Quote:
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03-20-2017, 03:47 AM
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Do a search of 'vapor honing technologies' - it appears to be a great alternative to dry blasting...
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03-20-2017, 05:07 PM
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03-20-2017, 05:09 PM
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Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 9,125
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^ gawd that looks great!
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03-20-2017, 05:23 PM
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Those look brand new!
__________________
'71 914-6 #0372 '17 Macan GTS |
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03-21-2017, 05:17 AM
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Registered User
Join Date: May 2014
Posts: 2
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Looks like it's still an abrasive blasting though, so you don't get the benefit of not having any abrasive grit in your engine, which seems to be the point of soda blasting (?)
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03-21-2017, 05:58 AM
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Registered
Join Date: Jul 2013
Location: Brisbane, Australia.
Posts: 2,603
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Quote:
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03-21-2017, 10:46 AM
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Michael's Six
