[Public-List] Soda blasting.

[Don Campbell via Public-List]

I did not do the job myself but hired a contractor who came about 65 miles 
one way with the equipment. At the time he charged me $800 CDN, but that was 
2 men, machines, and materials for about 6 hours because of the drive, - in 
1997. (That is why I suggested  the fire reclaimers - they would have been 
much closer!) It also meant I did not get any of the heavy metals or soda in 
my system, eyes, lungs or skin,  which I think is a major priority for my 
safety. This is not a process that relies on abrasion like sandblasting. It 
is a process that relies on an explosion of crystalline soda which makes 
dust. The rain was really good that day. The blasting soda is a much bigger 
crystal- about 75 microns- compared with the fine stuff in Cow Brand in the 
refrigerator. However, the blast from the system is so faint, you cannot see 
it, you only see the materials coming off the hull.  I have electron 
microscope pictures of the crystals somewhere but the crystals are fairly 
large and very irregular in shape.
    They did say that they used the same equipment for sandblasting but had 
to have the ability to cut down flow very considerably because the weight 
and volume is so different from sand. As I recall we used about 2 1/2 bags 
of soda, and they said it would have been over 600 lbs. of sand for the same 
job. Very different clean-up volumes!
Don

-----Original Message----- 
From: Greg Dawson via Public-List
Sent: Friday, March 13, 2015 1:54 PM
To: public-list at lists.alberg30.org
Subject: [Public-List] Soda blasting.


Hi Don.

Thanks for the info, just a couple of questions.

1, did you do the job yourself and if yes what equipment did you use?

2, what was the approximate operating pressure.

Greg.
Sent from AOL Mobile Mail
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