A new Halon replacement alternative
3 Jul 2001
3M's Performance Materials Division has developed a new fire extinguishing material that it is billing as the first viable long-term replacement for Halon.
The new technology is being marketed as 3M Novec fire protection fluid 1230. Its chemical structure is low in acute toxicity, providing a significant margin of safety at relatively high extinguishing concentrations, making it ideal for use in occupied spaces.
Novec 1230 has a zero ozone depletion potential, five-day atmospheric lifetime and a global warming potential of one. Therefore, unlike halon or other halon alternatives, no regulatory restrictions are anticipated.
Like conventional clean agents, Novec fire protection fluid leaves no residue and is nonconductive, so it will not damage sensitive electronic equipment. Currently, 3M is working with several of the world's top fire protection equipment manufacturers to develop systems designed specifically for the material.
Novec 1230 is a liquid at room temperature with a boiling point at 48 C (118 F) and relatively low vapour pressure of 32.8 kPa (4.75psig) at 20 C (68 F). In a fire situation, the fluid rapidly gasifies to extinguish a fire.
Its liquid form allows for shipment in totes and drums rather than pressurised cylinders providing for safe storage and shipping over a wide range of temperatures. As a result, Novec 1230 can be easily air freighted to refill systems at a moment's notice.
