Several comments about such products plugging up radiators .... here's some history below on Bars Leaks from a web site, pretty successful product for something that supposedly does more harm than good ...... and it even saved the USS Nautilus so the story goes !!! By the way, I don't work for the company ..... LOL !!!
The History of Bar's Leaks:
1947 - Bar’s Leaks founded in California by Fred Barton (1907-1975), who discovers a unique ingredient called RHIZEX to stop radiator leaks. RHIZEX is later awarded a patent by the U.S. Trademark and Patent Office.
1950 - Bar’s Leaks enters the traditional automotive aftermarket: jobbers, warehouses and repair garages. The products debut in glass bottles.
1951 - Bar’s Leaks moves its headquarters from California to Holly, Michigan.
1952 - Bar’s Leaks products used in regular and heavy duty assembly lines as OEM treatments by major US automakers. This practice continues today on a global scale.
1958 - During the legendary trip of the nuclear submarine USS Nautilus, Bar’s Leaks is used to stop a hidden leak in one of the vessel’s nuclear reactor steam condensers. The treatment was successful, and allowed the submarine to complete its historic mission as the first submarine to travel under the North Pole. See here to learn more about the USS Nautilus.
1963 - Bar’s Leaks switches packaging from its original glass bottle to advanced metal cans to enhance product durability and longevity
1965 - Bar’s Leaks enters the retail auto aftermarket. Its products are found in major US auto parts retailers to this day.
1968 - Bar’s Leaks introduces tablet-based stop leak product. Since then, over 1 billion tablets have been sold.
1972 - Bar’s Leaks introduces the pouch pack to the automotive aftermarket, a packaging concept that’s at least 10 years ahead of its time.
1974 - Fred Barton invents NO’VERHEAT, a kit that converts cars’ open cooling systems to closed. NO’VERHEAT sells in three sizes to accommodate all vehicle types.
1982 - Bar’s Leaks sells one-hundred-millionth bottle of cooling system stop leak.
1983 - Taking advantage of modern plastics technology, Bar’s Leaks migrates all products to a plastic bottle, reducing weight while keeping product durability high.
1995 - Bar’s Leaks sponsors five-time NHRA National Champion Top Alcohol Driver Bill Reichert and the URC Sprint Series.
1996 - Bar’s Leaks introduces three revolutionary products: Engine, Transmission and Power Steering stop leak solutions.
1997 - Bar’s Leaks becomes a major sponsor of 1997’s Monday Night Football radio broadcasts.
1999 - Bar’s Leaks Jack Oil with Stop Leak developed and introduced to the market. It’s the first and still the only product of its kind known in the world.
2001 - Bar’s Leaks introduces Liquid Aluminum Cooling System Radiator & Heater Core Stop Leak, which becomes an instant success with customers everywhere.
2003 - Bar’s Leaks introduces the world’s first clear, dual-cavity bottle.
2004 - Bar’s Leaks revolutionizes the block seal stop leak category with the introduction of its head gasket repair product line, known and respected by mechanics everywhere.
2006 - Bar’s Products, Inc, the parent company of Bar’s Leaks, acquires Rislone, Inc. and adds its technology and products to its catalog.
2008 - Bar’s Leaks introduces Liquid Copper Block Seal (p/n 1109), which uses a suspended formula while being completely antifreeze compatible.
2009 - Due to rising growth and demand for its products, Bar’s Leaks and Rislone operations expand to a second location in Holly, Michigan.
2010 - Bar’s Leaks launches its strongest, pro-grade head gasket sealant: Carbon Fiber Block Seal, p/n HG-1. The product rapidly becomes the industry benchmark for chemical-based, professional-quality head gasket repair products.
2012 - Bar’s Leaks unveils its dual cavity fuel treatment, which includes an innovative patent-pending spout.
The Deeper Story of the USS Nautilus: Bar's Leaks was more than just a stop leak, it was history in the making!
THE TRUE STORY OF HOW BAR’S LEAKS SAVED THE USS NAUTILUS.
In an automotive radiator a tiny leak might not mean disaster: But on a U.S. nuclear submarine during a top-secret mission under the Arctic ice cap, a tiny salt-water leak would have proven deadly for the sailors aboard the USS Nautilus were it not for the amazing stop leak capability of Bar’s Leaks. Here is their true story:
En route to the polar ice cap, the engineering crew discovered that a small salt-water leak had developed on one of the nuclear reactor steam condensers. The leak was spilling sea water onto a critical piece of machinery, causing noxious fumes to fill the Engine and Maneuvering Rooms. A submarine is a labyrinth of tubes and pipes, so pinpointing the leak while at sea would have been impossible. Something had to be done.
In Seattle, the sub’s last port before embarking north, the commander had an idea to save the mission: He sent his men out to buy as much Bar’s Leaks as they could find. Dressed in civilian clothes, the crew covertly spread out over Seattle to purchase the legendary stop-leak solution.
With the Bar’s Leaks safely on board, sailors poured 70 quarts of it into the submarine’s condenser system.
It worked!
With the leak stopped, the USS Nautilus was able to complete its top-secret mission, becoming the first submarine to cross the North Pole underneath the Arctic ice cap.
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