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SILV-EX PLUS is a low, medium, and high expansion, Class A foam concentrate formulated from specialty hydrocarbon surfactants, stabilizers, corrosion inhibitors and solvents. This formulation provides superior cold weather performance. The latest development in the original forest fire control concentrate, SILV-EX PLUS has been proven effective on many deep-seated Class A fires such as tire fires, paper fires, coal fires, structure fires, and wild fires. SILV-EX PLUS foam 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 PLUS foam concentrate offers outstanding economy in concentrate storage space, cost (compared to conventional 3% and 6% foaming agents) and water hauling requirements.
- Typical Physiochemical Properties at 77 °F (25°C)
- Appearance - Light Amber Clear Liquid
- Density - 1.010 g/ml - 0.010
- pH - 7.0 - 8.5
- Refractive Index - 1.3660 - 0.0035
- Viscosity - 12 @ 3 centistokes
- For comparison purposes, the viscosity of 10W40 motor oil is 160 centistokes at 77°F (25°C) and 800 centistokes at 12°F (-11.1 °C)
- Surface Tension Water - 66 to 76 dynes/cm
- 0.1% SILV-EX PLUS solution - 27.20 dynes/cm
- 0.6% SILV-EX PLUS solution - 26.80 dynes/cm
- 1.0% SILV-EX PLUS solution - 26.60 dynes/cm
- Flash Point - 200°F (93.3°C)
- Pour Point - 22°F (5.5°C)
- SILV-EX PLUS concentrate is designed specifically for use on Class A fuel fires including wood, paper, coal, and rubber. SILV-EX PLUS foam gives the fire fighter extinguishment capabilities, exposure protection, and increased safety.
- Although designed for Class A fires, SILV-EX PLUS foam can be effective on some Class B flammable liquid fires when applied by medium and high expansion devices.
- SILV-EX PLUS solution can be used with aspirating and non-aspirating discharge devices, compressed air foam systems (CAFS), or dropped from fixed or rotary wing aircraft.
- Applicable extinguishment mechanisms and some properties of SILV-EX PLUS foam depend on the type of foam delivery device used.
- SILV-EX PLUS has a reduced environmental signature and does not have any EPA reportable contents. The solution does not destroy or retard new forest growth, and will not harm fish or wildlife; it is biodegradable in soils, aquatic ecosystems, and sewage treatment facilities
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Features
- Reduction of the surface tension of water, which provides the SILV-EX PLUS solution with superior wetting and penetrating characteristics. This renders Class A fuels less combustible and allows the solution to penetrate past the char to control deep seated fires
- Extended drain time provides longer surface wetting, reducing the risk of ignition/re-ignition
- SILV-EX PLUS agent creates a foam blanket which provides an insulating barrier between the fuel and air
- SILV-EX PLUS foam suppresses combustible vapors while cooling the fuel
- The brilliant white foam reflects heat
- SILV-EX PLUS solution creates a dense foam blanket with excellent insulating properties
- SILV-EX PLUS foam clings to vertical surfaces for structure protection
- The wetting and penetrating characteristics of the SILV-EX PLUS solution reduce the combustibility of Class A fuels and makes water five times more effective
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