TCE cuts through almost all greases, waxes and gunk, yet because it is completely volatile, does not leave any residue on the cleaned part. We have found TCE to be the very best way to get gunk off prior to bluing, plating or browning. Makes an excellent closed-can soak for really gunked-up parts. The least harmful of the chlorinated solvents still generally available. (This isn't a license to be careless; follow the label directions exactly!) Must be used with adequate ventilation; gloves and eye protection are recommended. Keep away from heat and open flame. Mfg: Brownells SPECS: Quart (32 fl. oz./946 ml) or Gallon (128 fl. oz./3.8 L).