Class A Foam Concentrate (0.1-1%)
AUXQUIMIA CAFOAM is a foam concentrate (0.1-1%) to fight class A fires, specially designed to be used in combination with Compressed Air Foam Systems (CAFS). Added to water in low concentrations, it reduces the surface and interfacial tensions and increases its penetrating and spreading ability. AUXQUIMIA CAFOAM reduces water consumption, achieves faster extinction and makes reignition more difficult. Foam produced in CAFS using this concentrate at 0.3% in water combines some important features like good adherence, slow draining, long lasting, excellent wetting ability, etc., being odorless and easily biodegradable.
In addition to its use in CAFS it can be applied with standard low, medium and high expansion foam equipment and spray nozzles. Although the main use for the CAFOAM is for Class A fires, it can be used to control small hydrocarbon fires (Class B) at 0.5% with gentle application. AUXQUIMIA CAFOAM’s nominal proportioning rate is 0.5% in fresh or sea water (0.3% in CAFS.) This rate can be varied between 0.1 and 1.0%, depending on the type of foam desired. It can be used with fresh or sea water.
| CONCENTRATE | |
| Specific gravity @ 20°C | 1.045 |
| pH @ 20°C+ | 8-8.5 |
| Viscosity, cone and plate, mPa.s @ 20ºC | 25 |
| Freezing point, °C | <-15ºC |
| Lowest temperature for use, °C | -15ºC |
| FOAM SOLUTION | |
| Dilution rate | 0,5% |
| Wetting test, min:s | <0:10 |
| Surface tension at 20°C, mN/m (Demineralised water) | 28,0 |
| Interfacial tension with cyclohexane at 20°C, mN/m | 4,0 |
| Low expansion / Medium Expansion | -L/M |
| Foam expansion index | 9,0 / 60 |
| 25% Drainage Time, min:s | 10:00 / 20:00 |
