Chemguard 3%-6% AR-AFFF C-363 is a specially formulated, aqueous film forming free flowing viscous foam concentrate. It forms a vapor suppressing aqueous film on hydrocarbon type fuels or a polymeric membrane on polar solvent/water miscible type fuels. It is intended for use at a proportioning rate of 3% (3 parts AR-AFFF concentrate to 97 parts water) on hydrocarbon fuels such as gasoline, kerosene, diesel etc. Chemguard 3%-6% AR-AFFF is intended for use at a 6% proportioning rate (6 parts AR-AFFF concentrate to 94 parts water) on polar solvent/water miscible fuels such as alcohols, ketones, esters, etc.
Features:
• U. L. Listed, Foam Liquid Concentrates
• Suitable for use with either fresh or salt water
• Excellent wetting characteristics when used in combating Class “A” fuel fires
• Suitable for use with carbon steel, fiberglass, polyethylene or stainless steel. Chemguard 3%-6% AR-AFFF is not compatible with galvanized pipe or fittings in an undiluted form.
• Suitable with dry chemical extinguishing agents
• Suitable for use on hydrocarbon or polar solvent type fuels
• Suitable for use with both air-aspirating foam and standard water fog nozzles
Foaming Properties
Aspirating type discharge devices typically generate expansion ratios between 6-10 to 1 when 3%-6% AR-AFFF is mixed with water at the correct ratio. Non-aspirating type devices will typically generate expansion ratios of between 2-4 to 1. Expansion ratios are dictated by the type of discharge device, flow rate and discharge pressure.
Design Information
Cannot be used in sub-surface applications with polar solvent type fuels.
Typical Properties at AT 77ºF (25ºC)
Appearance….…………….Off White Gel-Like Liquid
Specific gravity….………………………….1.016 g/ml
Ph…….………………………………………………7.3
Viscosity……..….……………………2000 - 2500 cps
Application Rates
Recommend application rate on hydrocarbon type fuels is .10 gpm/ft.² and on polar solvent type fuels
is .15 gpm/ft². The recommended minimum application rates for the following specific polar solvent type fuels are: