Chemguard Class “A” is a non-corrosive, non-toxic, biodegradable foam concentrate. When mixed with water in the correct proportion, it changes the properties of water. It reduces the surface tension of the water, and produces foam, which allows the water to cling to vertical or horizontal surfaces without run off. This allows the water to absorb more heat and provides greater penetration into Class “A” fuels.
Water treated with Chemguard Class “A” foam concentrate is 3 to 5 times more effective on Class “A” fires than untreated water.
Water treated with Chemguard Class “A” will wet Class “A” fuels up to 20 times more efficiently than untreated water.
Suitable with either fresh or salt water.
Suitable with non-air aspirating or aspirating hand line nozzles.
Suitable for use on rubber (tires), coal, paper and many other types of Class “A” fuels.
Suitable through medium expansion nozzles on Class “A” or contained Class “B” flammable liquids.
Manufactured with materials that do not appear on any federal register under Sara Title III, Sec. 313 of the Federal Superfund and Emergency Planning Regulations.
RECOMMENDED DILUTION RATES:
Helicopter Bambi Bucket .3% - .5%.
Handline, air-aspirating nozzle .3% - .5%.
Handline, non-air-aspirating nozzle .3% - .6%.
Compressed air foam system (CAFS) .1% -.3%.
Note: The above rates vary depending on the quality of the foam blanket required.
Type of discharge device.
System operating pressure.
Amount of foam concentrate in the water.
Hypro Corporation Proportioning Systems.
Model 500 Foam Proportioner.
Balanced Pressure Pump Systems.
Around the Pump Proportioners.
Helicopter Bambi Bucket.
Compressed Air Foam System (CAFS).
High Expansion Foam Generators.
TYPICAL PROPERTIES AT 77ºF (25ºC):
Appearance Pale Amber Liquid.
Specific Gravity 1.010.
Surface Tension @ .3% Solution 25.5 Dynes/cm.
.5% Solution 26.1 Dynes/cm.
.7% Solution 24.5 Dynes/cm.
1.0% Solution 24.8 Dynes/cm.
Viscosity 20 cps.
If kept in the original unopened and airtight Chemguard supplied container and stored within the temperature range 32ºF-120ºF (0ºC - 49ºC), a shelf life of 20-25 years can be expected. When stored in other than the manufacturer's supplied container, check with Chemguard for storage guidelines. If frozen during storage, thawing will render the product completely serviceable.
Note: It is not recommended to pre-mix Class “A” concentrate with water for long-term storage.