
SILV-EX® is a low, medium, and high expansion, Class A foam concentrate designed specifically for use on Class A fuel fires including wood, paper, coal and rubber. This formulation provides extremely good cold weather performance. SILV-EX® is a low, medium, and high expansion, Class A foam concentrate designed specifically for use on Class A fuel fires including wood, paper, coal and rubber. This formulation provides extremely good cold weather performance. The original forest fire control concentrate, SILV-EX has been proven effective on many deep seated Class A fires such as tire fires, paper fires, coal fires, structure fires, and wild fires. Although designed for Class A fires, SILV-EX foam can be effective on some Class B flammable liquid fires when applied from medium and high expansion devices. SILV-EX foam clings to vertical surfaces for structure protection. The wetting and penetrating characteristics of the SILV-EX solution reduce the combustibility of Class A fuels and makes water 5 times more effective. The brilliant white foam reflects heat and creates a dense foam blanket with excellent insulating properties. SILV-EX solution can be used with aspirating and non-aspirating discharge devices, compressed air foam systems (CAFS) or dropped from fixed or rotary wing aircraft. The concentrate can be proportioned from 0.1% to 1.0% in fresh, brackish or sea water. When used as a pre-mixed solution, only fresh or potable water should be used if the premix is to be stored over long time periods. Due to its extremely low proportioning rate, SILV-EX foam concentrate offers outstanding economy in: concentrate storage space, cost (compared to conventional 3% and 6% foaming agents) and water hauling requirement.