What is Nib Creep?
Nib creep is when ink from a fountain pen "creeps" out from between the slit in the nib onto the surface of the nib. According to the experts on The Fountain Pen Network this can happen due to a few different reasons including the type of ink in the pen, the type of metal the nib is made of or a small imperfection in the slit of the nib can be responsible for drawing ink out on to the nib. Some people do not like the way it looks or are concerned about staining something with the excess ink, however, a bit of nib creep does not seriously affect the performance of a fountain pen. I have a fountain pen that has some nib creep that seems to happen most during hot weather, but it does not affect the way it writes. For me, I don't find a little bit of nib creep to be particularly bothersome.