these thoughts are so helpful esp the reminder that the bisque ware will collect dust and oil. the reason for not firing again is that this is a high fire "510" clay, white with moderate grog. when fired in the secong firing it turns gray so therefore i wish to keep these pieces white. I am def concerned about the brittleness of the pieces however they are pieces to look at and pick up gently vs everyday use. I am tempetd to fire one of the sets of 7 nestings, let them turn gray and gesso with white paint as suggested by a colleague. then spray with a matte spray. experiment. or simply spray/cover with one of the suggested items here on the bisque. anybody have luck with Duncan products. and the matte cleay glaze will simply again, turn the piece garyer than leaving it bare and then painting...? not totally concerned with sealing pores as such, like the surface as is, just want to keep it looking this way.
thanks thanks thanks, hope for more ideas.