Dear Mitra commnutity,
i want to see if anyone knows a list of pigments that is hard to grind in oil and thus requires additive to stablize them.
i know PB29 ultramatine blue/lapis lazuli is one of them, any other pigment like that?
i heard Micharl harding even add beeswax into titanium white, not sure this pw6 is not stablize without beeswax or he by default adds it into all his paints?
and when additive is not avoidable, does beeswax more favor than other additive like alunimun stearate, in terms of painting longevity? i am afraid beeswax melt out in hot temperature?
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