Fire Protection System

3% x 3% AR-AFFF


Chemguard 3% x 3% AR-AFFF is a specially formulated, free flowing, viscous, aqueous film forming foam concentrate. It forms a vapor suppressing aqueous film on hydrocarbon type fuels or a polymeric membrane on polar solvent/water miscible type fuels. Chemguard 3% x 3% AR-AFFF is intended for use at a proportioning rate of 3% (3 parts AR-AFFF to 97 parts water) on hydrocarbon fuels such as gasoline, kerosene, diesel, etc., and on polar solvent fuels such as alcohols, ketones, esters, etc. Chemguard 3% x 3% AR-AFFF is specifically formulated for Topside, or Type II and Type III applications.


  • U.L. listed, Foam Liquid Concentrate
  • Used at a 3% proportioning rate on both hydrocarbon and polar solvent fuels
  • Suitable for use with either fresh or salt water
  • Excellent wetting characteristics when used in combating Class “A” fuel type fires
  • Suitable for use with fiberglass, polyethylene or stainless steel. 3% - 3% AR-AFFF is not compatible with galvanized pipe or fittings in an undiluted form.
  • Suitable for use on hydrocarbon or polar solvent type fuels
  • Suitable for use with both air-aspirating foam and standard water fog nozzles
  • Economized for Topside applications


  • Fixed or portable in-line eductors
  • In-line balanced pressures and pump pressure proportioning systems
  • Around the pump proportioners
  • Handline, air-aspirating nozzles with fixed eductor pickup tube


  • Foam Chambers
  • Standard water fog nozzles for handlines and monitors
  • Air-aspirating foam nozzles
  • Foam makers for use with either Floating roof storage tanks or Dike/Bund protection systems


Aspirating type discharge devices typically generate expansion ratios between 6-10 to 1 when 3% - 3% 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


Appearance Amber Gel-Like Liquid
Specific Gravity 1.02 g/ml
pH 7.7 +/- 0.3
Viscosity 1500 cP Minimum