Subject: Experimenting with Soda Blasting-Oakite]
From: ACRE
Date: 11/12/2003, 8:52 PM


           Does anyone remember OAKITE ? A real good cleaner, Virg

Oakite was a good cleaner, but that seems to have died
along with most caustics, thanks to the EPA.
The soda method is acceptable for most types of cleaning, including
paint stripping, is considered biodegradeable, and is allowed to
enter sewage drains in many areas.
Archie


I had a conversation with my blasting equipment supplier this morning
concerning Soda Blasting.

He was not very up beat about this process.

Every bit of the soda must be removed from the parts that are cleaned because
the soda is basically a salt.(SALT) If any remains on or in the part or
parts, when moisture contacts it, it becomes active and does what salt does
to steel.  A well established blasting company recently was forced out of
business because of damage claims from past customers of cars and engine
parts he had cleaned. Residual soda in seams and pockets etc. which wasn't
totally cleaned from the parts, picked up moisture before being primed and
painted or assembled. It attacked the metal causing damage to parts and
paint . The cost of repairing the damage became so great that the company was
forced to close.

Recommendation:  If you use it, be very very careful about cleaning the parts
after blasting and before using.

Hope this helps someone.

Wally-- 

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