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Old 26th January 2010, 11:24 AM
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Roy_H Roy_H is offline
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Join Date: Nov 2008
Location: Suffolk
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From the days when I used to get through gallons of Kodalith developer for high contrast lith work - similar formulation to LD-20 I believe - I can vouch for its longevity.
So long as the two solutions are not contaminated it should be good for many years. wish I'd hung onto some!
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