To flatten Aerothane to the gloss of Polytone (Semi-gloss): 6 fl oz per quart of paint ( 1 pint will flatten over 2 quarts) 24 fl oz per gallon of paint (1 quart will flatten over 1 gallon or over 4 quarts) To flatten either Aerothane or Polytone to full military flat: 14 fl oz per quart of paint (1 pint flattens over 1 quart) 42 fl oz per gallon of paint (1 pint and 1 quart flattens 1 gallon) Pint = 16 fl oz., Quart = 32 fl oz., Gallon = 64 fl oz. Ship via UPS ground only. Shelf life is 2 years unopened.