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Old 11-08-2019, 02:55 PM
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Pete VanderLaan Pete VanderLaan is offline
The Old Gaffer
Join Date: Apr 2002
Location: Chocorua New Hampshire
Posts: 21,657
Pete VanderLaan is on a distinguished road
several things can cause the browning. The first I would indeed say is the sodium content which you can't reduce since it's pre mixed. Second would be the excess silver and it's very touchy as to when is too little and too much. In my own formulations, two grams either way makes for a major shift. The batch doesn't need more zinc since the base has lots. Iron can be strange, Too little and it just strikes poorly, Too much and the same thing happens but the non strike is very different.

Also heating and cooling those glasses is really important for the strike. If it is turning amber prior to any reheat, it has probably got too much silver. I can't quite put a finger on it because of the sodium which I avoid so I don't really get to see its influence.
Reds come from adding a remarkably small amount of copper. They strike in the annealer.
Where are we going and why am I in this basket?
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