STHAMEX-AFFF 3% F-15 (#4341)
Mfg.: Dr.Sthamer – Hamburg

STHAMEX®-AFFF 3% F-15 (#4341)
STHAMEX®-AFFF 3% F-15 is a synthetic, aqueous film forming fire extinguishing foam concentrate, based on surface active agents. It is designed for use at a 3% concentration and applied with all standard low, medium, and high expansion foam equipment and fixed foam installations especially for class B fires.

Key Features:
– Oleophobic Properties: The foam is resistant to fuel contamination, making it particularly suitable for sub-surface foam applications.
– Application Versatility: On hydrocarbon-based products, it can be applied as a non-aspirated aqueous solution using equipment such as water monitors, water sprinklers, and deluge systems.

Applications:
– Petrochemical industries
– Airports
– Onshore and offshore facilities

Limitations:
– STHAMEX®-AFFF 3% F-15 (#4341) is not suitable for use on polar solvents, such as alcohols.

Physical properties and technical data:
– Recommended induction rate : 3% low, medium and high expansion foam, non-polar liquids
– Foam expansion (according to EN 1568) : 7 – 11 low expansion foam, 40 – 80 medium expansion foam, 800 – 1100 high expansion foam
– 25% water drainage time (according to EN 1568): 1 – 5 minutes low expansion foam, 1 – 4 minutes medium expansion foam, 2 – 5 minutes minutes high expansion foam
– 50% water drainage time (according to EN 1568): 3 – 7 minutes low expansion foam, 3 – 5 minutes medium expansion foam, 4 – 6 minutes high expansion foam
– Colour colorless to yellow
– pH value at 20°C : 6,5 – 8,5
– Density at 20°C : 1,040 ± 0,02 g/ml
– Sediments: none
– Surface tension: < 17,0 mN/m
– Spreading coefficient: > 3 mN/m (Cyclohexane)
– Frost resistance: -15°C
– Viscosity at 20°C : < 10 mm²/sec