Queen Marking Pens

[dni]

My local beekeeping mavens have recommended against the use of oil-based queen marking pens (like the Testors)

Some of the bee supply folks sell Uni Posca (https://products.kelleybees.com/wtkprod/detail.aspx?item=640) brand of water-based paint markers:

My local art supply store carries these:
Marvy Garden Craft terracotta paint marker (http://www.durablesupply.com/margarcrafma.html)

Does anybody have any experience with this brand ?

Is it opaque enough to use?

[KQ6AR]

Did they say why? Cancer?

A lot of the beekeepers use hobby paint, for models, & nail polish.
Good luck finding green nail polish.

[dni]

Did they say why? Cancer?

A lot of the beekeepers use hobby paint, for models, & nail polish.
Good luck finding green nail polish.

i seem to recall that it is because if you get too much of the oil based medium on the queen it can kill her.

[Michael Bush]

Too much of any paint can kill her. I use the Testors enamel pens and the uni POSCO. Both are oil based enamel. I have many queens that were marked four and five years ago and are still doing fine.