Polyform just doesn’t get it.
According to information on at least one distributor’s blog, a total of 3 on-line distributors have been named the sole providers of cobalt blue and zinc yellow Premo in 2011. Polyform confirmed this to me over the phone.
Not only is this unresponsive to customers’ needs; it is patently unfair. It gives these distributors a competitive advantage over others who have been distributing Premo for years. (How many buyers are likely to go to one distributor for yellow and blue and another for the rest of the their colors? It stands to reason that if they are going to switch providers for yellow and blue, the rest of their business will go as well.)
It will mean that the users of smaller amounts of clay will no longer be able to get the entire array of primaries at their local craft stores. We teachers will be unable to expect students to provide their own clay for classes, unless we are satisfied with a truncated set of primaries.
Polyform seems to have missed the point that cobalt blue and zinc yellow are essential for anyone who mixes her own colors or wants to explore color theory, not just a relatively small number of artists who have developed product lines requiring these colors.