Trying to get my head wrapped around the best "product" for our application.
From this page:
http://www.ioportracing.com/faq/fire.htm
What are the differences between extinguishing agents?
Halon 1211: Advantages are that it leaves no residue, effective, not thermal shocking and the bottle withstands higher cockpit heat compared to Halon 1301.
Disadvantages are that it is toxic, does not quench the fire and is Ozone depleting. This chemical was not designed for system use as it is toxic, designed for hand held fire extinguishers only. This is one of two chemicals used by FireBottle (the other being CEA-614). Safecraft offers this chemical for high-heat installations. We recommend Halon 1211 when the bottle is placed over exhaust systems or stored in an area where the bottle will be subjected to sustained temperatures at or above 130º F.
CEA-614: This is a Halon substitute. Advantages are that it leaves no residue, not thermal shocking, and relatively Ozone safe.
Disadvantages are that it does not quench the fire and it takes twice as much material to do the same job as Halon. It is also expensive. Although 5# of CEA-614 may be legal for use in the SCCA, it will not do the same job as 5# of Halon. This agent is not used very much anymore.
FE-36: This new agent is a Halon substitute. It is not considered Ozone-depleting. It is used by Safecraft in their SFI-certified systems. It leaves no residue and is not thermal shocking.
Disadvantages are the same as CEA-614: it does not quench the fire and it takes twice as much material to do the same job as Halon. It is also more expensive than Halon. The SCCA now requires an SFI-certified system in all new cars. If this is what you need, either choose this agent, or the ESS system with AFFF.
AFFF or ColdFire: These are examples of foaming water-based systems.
Advantages are that it quenches the fire. Disadvantages are that systems are heavier, will not spread out like Halon, leaves a mess both in the car and on the track. If you would like this agent, we provide ESS brand systems using AFFF.
Halon 1301: In my opinion, the best product on the market. Advantages are that it is effective, non-toxic, non-caustic, leave no residue, small, lightweight, industry standard with plenty of supply, no thermal shock, leaves no mess.
Disadvantages are that it does not quench the fire and it is Ozone depleting.
So, based on this. AFFF or ColdFire would be a better product for us than Halon. Is that correct? I have head only good stuff about Halon and that is what I carry in the Single Seater.