Found this on another sight: "while searching for Poco Marine Cleaner. The company that made it was called R & G Chemical Company. They were located in Linwood, New Jersey. You are correct in saying that it removes oxidation and green corrosion better that any other product. The company apparently went out of business about 5 years ago."
bump....... down to my last 1/2 oz...... someone on this knowledgeable website must know what this magical product was made of.....