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<< Speaking of that wonderful rotten egg smell, is there any way to prevent
it? does anyone know what exactly causes it? It seems to only happen
to my blues and blacks in tempera paint.
It just happened to my 1 gallon jugs of yellow red and blue. I opened them to
use for a class, then they sat closed in a cool basement for 9 months and when
I opened them to use again it stunk up the whole room. I can't believe that
this is normal. That paint didn't even last a year before spoiling. I
assumed it had some sort of preservative in it. I must have been wrong. Does
anyone out there add preservatives to their tempera paints if they know it
won't be used up for a year? Is spoiling in such a short time normal? Is
there a difference in spoilage time between generic and name brands?