Crossword Puzzle Packing fluid

Clue: Packing fluid

Montblanc's fluid (INK with 3 letters)
Of a photo-developing fluid (EMULSIVE with 8 letters)
Etching fluids (ACIDS with 5 letters)
Four fluid ounces (GILL with 4 letters)
Kind of fluid (e.g. AMNIOTIC with 8 letters)
What might be needed for a heavy-duty packing job? (THICKERTAPE with 11 letters)
Conduits for moving fluid or air (DUCTS with 5 letters)
Piece of packing material (PEANUT with 6 letters)
Lab fluid (SERUM with 5 letters)
Immunological fluids (SERA with 4 letters)