For many years Amerex has been recommending and offering Visilox V-728 for sale as a preferred o-ring lubricant. It worked well for us in the factory, particularly on halon extinguishers and apparently from the number of 5 ounce tubes sold, it is working well for you in the field. The decision to use the silicon type lubricant was based upon o-ring and chemical agent supplier advice as well as a good deal of experimentation in our R & D lab.

The V-728 was a proprietary blend created for Amerex but our supplier has placed such large volume order requirements on us we would have had to stock a multi year supply. We did some more R & D and found that Visilox V-711 has all of the same lubrication and protection qualities and is readily available.

As of May 1, Amerex is stocking Visilox V-711. It is available in the same 5 ounce tubes and at the same price as currently listed in the Amerex Parts Price List dated Feb. 1, 1997.

Amerex lab and floor manufacturing test perameters - Lubricants must satisfy the following:

1. Be satisfactory for use @ - 65° to + 170° F.
2. Be reasonably resistant to dilution by Halon 1211.
3. Be reasonably easy to apply.
4. Inhibit corrosion of lubricant coated metals.
5. Be compatible (not degrade) o-rings and seals.
6. Be economical in price considering the application.
7. Come in a convenient package or dispenser.

Test results:

Visilox 711 performed satisfactorily in all of our tests. The appearance is white translucent. Stated temperature range - 40° to + 400° F. (no problem in our -65° F. tests). Visilox 711 is a water repellant, chemically inactive compound. It is a noncorrosive and radiation resistant good lubricant for plastic and rubber parts such as o-rings.