Wildfires

In most cases, wildfires develop following prolonged periods of drought and extreme heat in areas which are often inaccessible. They present a special challenge for fire-fighters, as water is regularly in short supply at such locations. Use of wetting agents increases the wetting properties of fire
water significantly, contributing to fast, lasting extinguishing results.

Wetting agents

is a fire water additive which lowers the surface tension of water and reduces interface tension between water and solid material surfaces. UltraWet® wetting agent does not form water droplets, due to the low surface tension; instead it forms a thin aqueous film on solid materials, which spreads evenly across their surfaces, displacing air bubbles. This enables extinguishing water to penetrate burning materials, e.g. wood, paper, textiles etc. (fire class A), or not easily wetted surfaces, increasing its cooling properties.

UltraWet®
Proportioning rate
Wetting agent from 0.1%
Frost-resistant -25 °C
Viscosity
20 °C ≤ 25 mm2/s
0 °C ≤ 50 mm2/s
lowest use temp. ≤ 200 mm2/s

Primary use: Municipal fire services, wood/paper industry, recycling industry

Main application: Ember forming materials (fire class A), wildfires

Installations and equipment: Hollow spray nozzles, jet pipes, spray nozzles, water sprinkler or deluge systems, water monitors

UltraWet® is fluorine-free, physiologically harmless and fully biodegradable.

Fire extinguishing agents as wetting agents

comprises our range of synthetic detergent foam concentrates, which are designed for generating low, medium and high-expansion foam. Interface-active ingredients, foam stabilisers and antifreeze characterise the composition of these powerful, reliable and fluorine-free foam concentrates.

STHAMEX® K-1%
Proportioning rate
Low-expansion foam 1%
Medium-expansion foam 1%
High-expansion foam 1%
Wetting agent 0.1% - 0.5%
Expansion
Low-expansion foam up to 20 times
Medium-expansion foam up to 200 times
High-expansion foam up to 1000 times
25% / 50% drain time
Low-expansion foam up to 15 / 25 minutes
Medium-expansion foam up to 20 / 30 minutes
High-expansion foam up to 15 / 25minutes
Frost-resistant -15 °C
Viscosity
20 °C ≤ 20 mm2/s
0 °C ≤ 50 mm2/s
lowest use temp. ≤ 150 mm2/s
STHAMEX® 3%
Proportioning rate
Low-expansion foam 1 %
Medium-expansion foam 1 %
High-expansion foam 2 - 3%
Wetting agent 0.1% - 0.5%
Expansion
Low-expansion foam up to 20 times
Medium-expansion foam up to 200 times
High-expansion foam up to 1000 times
25% / 50% drain time
Low-expansion foam up to 10 / 15 minutes
Medium-expansion foam up to 10 / 20 minutes
High-expansion foam up to 10 / 25minutes
Frost-resistant -6 °C / -15 °C / -20 °C / -25 °C
Viscosity
20 °C ≤ 20 mm2/s
0 °C ≤ 30 mm2/s
lowest use temp. ≤ 110 mm2/s

Primary use: Municipal fire services, power stations, industry, plastics industry, recycling plants, maritime, aviation, mining

Main application: non-polar hydrocarbons (fire class B) and solvents, plastics, recyclables, tyres, solid material fires (fire class A).

Installations and equipment: Hollow stram nozzles, low-expansion foam installations, low-expansion foam monitors, low-expansion foam branch pipes, medium-expansion foam branch pipes, high-expansion foam generators, CAFS

All synthetic detergent foam concentrates are fluorine-free, physiologically safe when used as intended, and 100% biodegradable.

STHAMEX®-class A
is a new, refined, highly concentrated foam agent based on foam-forming active ingredients, which are specially designed for extinguishing solid fuel fires (fire class A), as well as for use with compressed air foam system (CAFS). Upwards from 0.1% proportioning rate, STHAMEX® -class A is suitable for use as a wetting agent and, upwards from 0.3%, for CAFS applications. For extinguishing liquid fires (fire class B), the induction rate is 0.5%.

STHAMEX®-class A Classic
is a highly concentrated foam agent based on fully biodegradable surfactant compounds, developed especially for use on class A fires. STHAMEX® -class A classic is designed in particular for extinguishing ember forming solid material fires in combination with CAFS. The proportioning rate for extinguishing liquid fires (fire class B) is 1%.

STHAMEX®-class A
Proportioning rate
Class A fires from 0.3%
Class B fires 0.5%
Wetting agent 0.1% - 0.3%
Expansion
Low-expansion foam up to 20times
Medium-expansion foam up to 200times
25% / 50% drain time
Low-expansion foam up to 10 / 15 minutes
Medium-expansion foam up to 10 / 20 minutes
Frost-resistant - 15 °C
Viscosity
20 °C ≤ 20 mm2/s
0 °C ≤ 50 mm2/s
lowest use temp. ≤ 150 mm2/s
STHAMEX® - class A Classic
Proportioning rate
Class A fires from 0.5%
Class B fires 1%
Wetting agent 0.1% - 0.3%
Expansion
Low-expansion foam up to 20times
Medium-expansion foam up to 200times
25% / 50% drain time
Low-expansion foam up to 10 / 15 minutes
Medium-expansion foam up to 10 / 20 minutes
Frost-resistant - 15 °C
Viscosity
20 °C ≤ 50 mm2/s
0 °C ≤ 20 mm2/s
lowest use temp. ≤ 150 mm2/s

Primary use: Municipal fire brigades, industry, recycling industry, waste treatment plants

Main application: Solid material fires, wildfires, non-polar hydrocarbons and solvents, plastics, recyclables

Installations and equipment: CAFS, Hollow stream nozzles, medium-expansion foam branchpipes, low-expansion foam branchpipes, foam / water monitors, foam / water branchpipes

All class-A foam concentrates are fluorine-free, physiologically safe when used as intended, and readily 100% biodegradable.

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