Red chalkboard ink?

[Binkspot]

Customer insist she has seen red chalkboard ink but can not remember where. I know black and white are avaliable from Union, any other sources? Anyone try tinting the white.

[Rob Coleman]

I have never seen RED chalkboard.  SourceOne carries both waterbase and plastisol - both are black.

Magna Chalkboard
Wilflex ONE STEP NYLON Black - while this is not formulated to be a chalkboard ink - it definitely works.  Actually, now that I think about it - perhaps you could take this OSN Base, add red pigment concentrate to it, and viola, have a red chalkboard.