A word of caution. Don't dump the neutralizing baking soda into the acid bath while the frame is in the bath. The reaction that takes place may discolor paint and damage fragile decals.
Better to remove frame from bath, dump in baking soda, wait for reaction to subside, then return frame to bath to neutralizer the acid still remaining in frame tubes. Yes, I learned this lesson the hard way.
Brent
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"I have a tendency to meander sometimes." B.G.