Foam agents for modern firefighting

For over 100 years, we have been developing and producing first-class foaming agents and special extinguishing agents for all fire classes, of outstanding quality for all requirements and areas of modern firefighting. A particular focus is placed on fluorine-free, PFAS-free, or non-fluorinated foaming agents.

Focus on environmental compatibility and sustainability in all fire classes
The responsible handling of the environment and its scarce resources poses high demands on modern fire protection. The development of environmentally friendly and efficient extinguishing agents based on renewable raw materials has been our focus since the early 1960s. With us, you receive not only a qualitatively outstanding foam agent with large reserves but also our expertise, support, accessibility, and commitment.


Flourine-free 
We define fluorine-free, PFAS-free, or non-fluorinated products as those manufactured without the intentional addition of organofluorine compounds for performance enhancement, such that, according to current and commercially available analytical methods, they contain no amount of organofluorine substances exceeding the regionally ubiquitous background levels (e.g., in the drinking water used in production). Please read our [link to relevant information].
TI-021 - Does fluorine-free mean free of fluorine?
TI-021 – Does fluorine free mean no Fluorine?

R86A7721 scaled
Class A foam agents are designed for extinguishing solid fuel (class A) fires, such as wood, paper, textiles, coal, hay, cotton, some types of plastics, tyres.

The use of Class B foam agents can quickly and reliably extinguish fires involving liquid and liquefiable substances. Fuels of Class B must be differentiated into non-polar (not miscible with water) liquids (e.g., gasoline, diesel, kerosene, oil, etc.) and polar (miscible with water) liquids (methanol, ethanol, isopropanol, etc.). The polarity of the fuels is crucial for the selection of applicable foam agents.

Class F foam agents are used to extinguish burning food grade oil and fat in private and commercial kitchens easily and safely.


Our foam agents for your scope

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      • Fire extinguishing systems
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      Fluorine-free vds

      vaPUREx® FXS AR 3/3 F-0 #2365

      Fluorine-free, alcohol-resistant fire extinguishing foam agent for use as a 3% low expansion foam in fixed systems.

      • Fire extinguishing systems
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      Fluorine-free vds

      vaPUREx® FXS PLY 1% F-0 #2150

      Newtonian, fluorine-free fire extinguishing foam agents especially designed for use with fixed systems for plastics and other solids. Its special formula enables 1:1 replacement of AFFF in already in-use fixed systems.

      • Fire extinguishing systems
      find out more
      Fluorine-free Inside Air High expansion foam

      STHAMEX® FXS IAF 3% F-10 #2355

      Fluorine-free, 3% synthetic foam concentrate specifically developed for producing highly temperature- and smoke-resistant light foam (Inside-Air Foam).

      • Marine industry
      • Fire extinguishing systems
      find out more
      Fluorine-free Inside Air High expansion foam

      STHAMEX® FXS IAF 2% F-10 #2241

      Fluorine-free synthetic foam concentrate specifically designed for the production of highly temperature- and smoke-resistant light foam (Inside-Air Foam).

      • Marine industry
      • Fire extinguishing systems
      find out more
      Fluorine-free

      MOUSSOL®- FF FXS 3/6 F-5 #2941

      Fluorine-free, pseudoplastic, yet very easily dosable foam agent for use on polar and non-polar flammable liquids.

      • Fire extinguishing systems
      find out more
      Fluorine-free vds

      vaPUREx® FXS 3% F-0 #2357

      vaPUREx® FXS 3 % is a suitable alternative to fluorinated foams in fixed systems that cover non-polar as well as selected polar fire risks. Its strong fire performance allows service in foam fire extinguishing systems using foam branch pipes and foam monitors as well. Dosing is possible with many commercially available proportioning systems.

      • Fire extinguishing systems
      find out more

      Fire classes

      Here is a brief introduction to the different fire classes.
      are designed for extinguishing solid material (class A) fires such as wood, paper, textiles, coal, hay, cotton, some types of plastics, tyres.
      The use of Class B foam agents can quickly and reliably extinguish fires involving liquid and liquefiable substances. Fuels of Class B must be differentiated into non-polar (not miscible with water) liquids (e.g., gasoline, diesel, kerosene, oil, etc.) and polar (miscible with water) liquids (methanol, ethanol, isopropanol, etc.). The polarity of the fuels is crucial for the selection of applicable foam agents.
      are used to extinguish burning edible oils and fats in private and commercial kitchens easy and safe.

      Foam types

      Here is a brief introduction to our different foam types.
      The Compressed Air Foam System, or CAFS, is a technology used to generate compressed air foam. Unlike traditional methods, where the foam concentrate is mixed into the water stream and then aerated using a nozzle and ambient air, CAFS mixes all three components (air, water, and foam concentrate) in a mixing chamber. This approach differentiates CAFS from conventional foam generation techniques, such as the free intake of air typical for heavy foam nozzles or air blending with fans as seen in light foam generators. In CAFS technology, the mixture of all three media (air, water, and foam concentrate) occurs in a mixing chamber. The independent control of all three media streams allows for highly flexible manipulation of the foam properties. Foam can be made wet, soft, and flowing, or dry, stiff, and highly adhesive.
       
      One significant advantage of CAFS, in addition to the flexible control of foam properties, is its extended reach and water savings of up to 80% compared to conventional water-based firefighting methods. This enables quick extinguishment of fires even with limited water resources, significantly reducing water damage. The overall lighter weight (approximately 25% less than water) further enhances the mobility of the attack team.
         
      CAFS is particularly valued for its versatile application possibilities in mobile municipal firefighting, for both exterior and interior attacks in building fires, as well as in forest and wildland fires. Firefighting is carried out using wet compressed air foam as needed, while dry compressed air foam is used for property protection and covering already extinguished areas. In the industrial sector, the long reach of CAFS allows for safe firefighting from a distance. Additionally, compressed air foam can be used to flood conveyor and ventilation shafts. Thanks to the propulsion provided by compressed air and its lighter weight, it can be transported much higher than conventional foam.
      Wetting agents are additives that are mixed with water in very small amounts (<0.51 TP3T) and increase the extinguishing effect of the water many times over. Wetting water has a significantly reduced surface tension, which lowers the interfacial tension between water and solids. The water's droplet shape is broken up, and a thin, spreading film of water forms on the surface of the burning material. Due to the increased contact area, the wetting water can wet water-repellent surfaces, such as sooted surfaces, penetrate the burning solid (fire class A) more easily, and dissipate more heat energy. By cooling the surface below the pyrolysis temperature, the pyrolysis process is abruptly interrupted. The fire is extinguished due to the lack of pyrolysis gases. Municipal fire departments use wetting water to fight solid fires, especially forest, peat, and moor fires, but also house and apartment fires. The wood, paper, and recycling industries also rely on wetting water to extinguish fires quickly and effectively without foam. Due to its extremely low mixing rate, wetting agent can be used very efficiently, especially where a sufficient water supply cannot be ensured or where carrying larger quantities of foam extinguishing agent is not possible due to limited payload capacities.
      Inside Air Foam (IAF) is generated with special foam concentrates and light foam generators in enclosed spaces, such as warehouses or engine rooms. IAF systems use the hot, combustion-product-laden gases from the fire event for foaming. This immediately binds the smoke gases and cools the surrounding atmosphere. This firefighting method does not require an external air supply or exhaust openings, making the structural requirements for IAF systems potentially more cost-effective compared to conventional light foam systems.
         
      This method places specific demands on the extinguishing agent, as heat, smoke particles, acidic combustion gases, and other pyrolysis products are highly destructive to foam. Therefore, only special IAF foam extinguishing agents can be used for this process; conventional foam agents are not suitable. The suitability of foam extinguishing agents must be proven for each project with the respective fuels through a hot test. Special medium-expansion foam generators, developed for industrial fire protection, operate with approximately 25- to 35-fold expansion in the lower medium-expansion foam range and can achieve throw distances of up to around 35 meters.
      High-expansion foam has an enormous foam volume yet is very light. It contains a very high air content, resulting in coarse bubbles and a particularly "dry" appearance. Due to its large volume and low weight, high-expansion foam cannot be "thrown." Its extinguishing effect is primarily based on its separation, insulation, and displacement effects. These extinguishing effects are further enhanced by the relatively high foam destruction rate (bursting of the foam bubbles). This releases tiny water droplets, which immediately evaporate due to the high combustion temperatures, forming 1,700 times their volume of water vapor. The surrounding air is cooled accordingly. High-expansion foam is produced using high-expansion foam generators.
         
      High expansion foam works by displacing air or oxygen. Due to its low volumetric weight, light foam should only be used in enclosed spaces, as it would otherwise be carried away by thermal currents or other air movements.
         
      Due to the very high expansion ratio of up to 1000 liters of foam from one liter of foam concentrate solution, even the largest spaces, such as airplane hangars or warehouses, can be completely flooded with light foam in a short time. The water content in the foam is so low that water damage is practically eliminated. When used preventively, light foam displaces flammable gases and provides effective protection against flames and heat exposure.
      Depending on the expansion ratio, "wet" fine-bubbled foam or "dry" coarse-bubbled foam with low weight and high volume is produced. The extinguishing effect is primarily based on separation, cooling, and displacement effects. Medium-expansion foam is generated using medium-expansion or combination nozzles. In the nozzle, the foam concentrate solution mixes with the induced air, impacts a screen mesh installed in the nozzle under pressure, and is further foamed. This process quickly produces a large amount of foam, which can be built up to a considerable height.
         
      Medium-expansion foam is particularly versatile due to its wide range of expansion ratios. With 50- to 100-fold expansion, it is effective against plastic, smoldering, and liquid fires. With 80- to 200-fold expansion, it is suitable for flooding shallow spaces such as channels, pits, and shafts, and anywhere rapid buildup of large quantities of foam is essential for extinguishing success. Medium-expansion foam can achieve throw distances of up to approximately 12 meters. It spreads, meaning it slowly covers the surface of burning materials within certain limits, forming a stable, closed, and gas-impermeable foam blanket.
      Low expansion foam is a "wet," fine-bubbled foam with high weight and relatively low volume. It is highly flowable, burn-resistant, gas-tight, and particularly effective at preventing re-ignition. Heavy foam adheres well to vertical surfaces and quickly seals liquid surfaces in a gas-tight manner. Its extinguishing effect is primarily based on separation and cooling. In the case of F3 foam extinguishing agents, the separation effect is further enhanced by a polymer film.
         
      Low expansion foam is generated in stationary installed systems or mobile through nozzles or foam monitors. Any installed screens or downstream enhancement sections, such as pourers, ensure that the foam concentrate solution is even better aerated with the induced air, resulting in a "stiffer," fine-bubbled foam.
         
      Due to its excellent flowability, low expansion foam can be used to extinguish both liquid and solid fires. The foam spreads over the entire fire surface in a very short time, sealing it gas-tight.
         
      For solid fires, its good adhesion to three-dimensional objects is particularly advantageous. Special foaming methods, such as CAFS, enhance this effect. When used preventively, low expansion foam suppresses the emission of flammable gases. The fire surfaces remain covered with a gas-tight, insulating, and cooling foam layer for an extended period. Due to its relatively high weight, low expansion foam can achieve large throw distances, allowing for firefighting from a safe distance.

      Our foam agents for all industries

      ProductProduct No.Proportioning RateType of foamFrost-resistance
      BosQRet® #1801 1801Retardant
      vaPUREx®LV ICAO B 3% F-15 #7345 73453%medium expansion, wetting agent, low expansion-10°C
      STHAMEX® Performance 1% F-20 #9148 91481%CAFS, high expansion, medium expansion, wetting agent, low expansion-20°C
      vaPUREx®- AR 3/3 F-5 #8342 83423%/3%CAFS, high expansion, medium expansion, wetting agent, low expansion-5°C
      vaPUREx®LV ICAO C 3% F-5 #7371 73713%CAFS, network water, low expansion foam-5°C
      STHAMEX® 3% F-15 #9352 93523%CAFS, high expansion, medium expansion, wetting agent, low expansion-15°C
      vaPUREx® FXS AR 3/3 F-0 #2365 23653%/3%Low expansion foam0°C
      vaPUREx®- AR 1x3 F-5 #8441 84411%/3%CAFS, medium expansion, wetting agent, low expansion-5°C
      STHAMEX® Performance 1% F-10 #9147 91471%CAFS, high expansion, medium expansion, wetting agent, low expansion-10°C
      vaPUREx® FXS PLY 1% F-0 #2150 21501%0°C
      vaPUREx®LV ICAO B 1% F-5 #7142 71421%CAFS, network water, low expansion foam-5°C
      STHAMEX® - MARINE 3% F-20 #9372 93723%CAFS, lightweight foam-20°C
      vaPUREx®LV ICAO B 3% F-10 #7341 73413%CAFS, medium expansion, wetting agent, low expansion-10°C
      STHAMEX® - IAF MARINE 2% F-10 #9271 92712%CAFS, lightweight foam-10°C
      STHAMEX® FXS IAF 3% F-10 #2355 23553%High expansion foam-10°C
      STHAMEX® FXS IAF 2% F-10 #2241 22412%High expansion foam-10°C
      TRAINING FOAM-N 3% F-0 #9346 93463%medium expansion, wetting agent, low expansion0°C
      EXERCISE FOAM-N 1% F-0 #9141 91411%medium expansion, wetting agent, low expansion0°C
      vaPUREx®- AR 3/3 F-5 #8343 83433%/3%CAFS, high expansion, medium expansion, wetting agent, low expansion-5°C
      STHAMEX® 6% F-15 #9601 96016%CAFS, high expansion, medium expansion, wetting agent, low expansion-15°C
      STHAMEX®-class A Classic 1% F-15 #9144 91441%CAFS, medium expansion, wetting agent, low expansion-15°C
      STHAMEX® -IAF MARINE 1% F-10 #9146 91461%CAFS, lightweight foam-10°C
      STHAMEX® -IAF MARINE 2% F-10 #9275 92752%CAFS, high expansion foam, low expansion foam-10°C
      MOUSSEAL®-MR F-30 #2053 2053ready-to-use solution-30°C
      FETTEX® F-25 #2052 2052ready-to-use solution-25°C
      MOUSSEAL®-A F-10 #2047 2047ready-to-use solutionwetting agent, low expansion-10°C
      MOUSSOL®- FF FXS 3/6 F-5 #2941 29413%/6%Low expansion foam-5°C
      vaPUREx® FXS 3% F-0 #2357 23573%Low expansion foam0°C
      vaPUREx® LV 0.5% F-10 #7041 70410.5%CAFS, medium expansion, wetting agent, low expansion-10°C
      STHAMEX® class A 0.5% F-15 #9071 90710.5%CAFS, medium expansion, wetting agent, low expansion-15°C
      ProductProduct No.Proportioning RateType of foamFrost-resistance
      STHAMEX® Performance 1% F-20 #9148 91481%CAFS, high expansion, medium expansion, wetting agent, low expansion-20°C
      vaPUREx®- AR 3/3 F-5 #8342 83423%/3%CAFS, high expansion, medium expansion, wetting agent, low expansion-5°C
      STHAMEX® 3% F-15 #9352 93523%CAFS, high expansion, medium expansion, wetting agent, low expansion-15°C
      vaPUREx®- AR 1x3 F-5 #8441 84411%/3%CAFS, medium expansion, wetting agent, low expansion-5°C
      STHAMEX® Performance 1% F-10 #9147 91471%CAFS, high expansion, medium expansion, wetting agent, low expansion-10°C
      TRAINING FOAM-N 3% F-0 #9346 93463%medium expansion, wetting agent, low expansion0°C
      EXERCISE FOAM-N 1% F-0 #9141 91411%medium expansion, wetting agent, low expansion0°C
      vaPUREx®- AR 3/3 F-5 #8343 83433%/3%CAFS, high expansion, medium expansion, wetting agent, low expansion-5°C
      STHAMEX® 6% F-15 #9601 96016%CAFS, high expansion, medium expansion, wetting agent, low expansion-15°C
      STHAMEX®-class A Classic 1% F-15 #9144 91441%CAFS, medium expansion, wetting agent, low expansion-15°C
      vaPUREx® LV 0.5% F-10 #7041 70410.5%CAFS, medium expansion, wetting agent, low expansion-10°C
      STHAMEX® class A 0.5% F-15 #9071 90710.5%CAFS, medium expansion, wetting agent, low expansion-15°C
      ProductProduct No.Proportioning RateType of foamFrost-resistance
      STHAMEX® Performance 1% F-20 #9148 91481%CAFS, high expansion, medium expansion, wetting agent, low expansion-20°C
      vaPUREx®- AR 3/3 F-5 #8342 83423%/3%CAFS, high expansion, medium expansion, wetting agent, low expansion-5°C
      STHAMEX® 3% F-15 #9352 93523%CAFS, high expansion, medium expansion, wetting agent, low expansion-15°C
      STHAMEX® Performance 1% F-10 #9147 91471%CAFS, high expansion, medium expansion, wetting agent, low expansion-10°C
      TRAINING FOAM-N 3% F-0 #9346 93463%medium expansion, wetting agent, low expansion0°C
      EXERCISE FOAM-N 1% F-0 #9141 91411%medium expansion, wetting agent, low expansion0°C
      STHAMEX® 6% F-15 #9601 96016%CAFS, high expansion, medium expansion, wetting agent, low expansion-15°C
      STHAMEX®-class A Classic 1% F-15 #9144 91441%CAFS, medium expansion, wetting agent, low expansion-15°C
      vaPUREx® LV 0.5% F-10 #7041 70410.5%CAFS, medium expansion, wetting agent, low expansion-10°C
      STHAMEX® class A 0.5% F-15 #9071 90710.5%CAFS, medium expansion, wetting agent, low expansion-15°C
      ProductProduct No.Proportioning RateType of foamFrost-resistance
      STHAMEX® Performance 1% F-20 #9148 91481%CAFS, high expansion, medium expansion, wetting agent, low expansion-20°C
      vaPUREx®- AR 3/3 F-5 #8342 83423%/3%CAFS, high expansion, medium expansion, wetting agent, low expansion-5°C
      STHAMEX® 3% F-15 #9352 93523%CAFS, high expansion, medium expansion, wetting agent, low expansion-15°C
      vaPUREx®- AR 1x3 F-5 #8441 84411%/3%CAFS, medium expansion, wetting agent, low expansion-5°C
      STHAMEX® Performance 1% F-10 #9147 91471%CAFS, high expansion, medium expansion, wetting agent, low expansion-10°C
      TRAINING FOAM-N 3% F-0 #9346 93463%medium expansion, wetting agent, low expansion0°C
      EXERCISE FOAM-N 1% F-0 #9141 91411%medium expansion, wetting agent, low expansion0°C
      vaPUREx®- AR 3/3 F-5 #8343 83433%/3%CAFS, high expansion, medium expansion, wetting agent, low expansion-5°C
      STHAMEX® 6% F-15 #9601 96016%CAFS, high expansion, medium expansion, wetting agent, low expansion-15°C
      STHAMEX®-class A Classic 1% F-15 #9144 91441%CAFS, medium expansion, wetting agent, low expansion-15°C
      vaPUREx® LV 0.5% F-10 #7041 70410.5%CAFS, medium expansion, wetting agent, low expansion-10°C
      STHAMEX® class A 0.5% F-15 #9071 90710.5%CAFS, medium expansion, wetting agent, low expansion-15°C
      ProductProduct No.Proportioning RateType of foamFrost-resistance
      MOUSSEAL®-MR F-30 #2053 2053ready-to-use solution-30°C
      FETTEX® F-25 #2052 2052ready-to-use solution-25°C
      MOUSSEAL®-A F-10 #2047 2047ready-to-use solutionwetting agent, low expansion-10°C
      ProductProduct No.Proportioning RateType of foamFrost-resistance
      vaPUREx®LV ICAO B 3% F-15 #7345 73453%medium expansion, wetting agent, low expansion-10°C
      STHAMEX® Performance 1% F-20 #9148 91481%CAFS, high expansion, medium expansion, wetting agent, low expansion-20°C
      vaPUREx®LV ICAO C 3% F-5 #7371 73713%CAFS, network water, low expansion foam-5°C
      vaPUREx®LV ICAO B 1% F-5 #7142 71421%CAFS, network water, low expansion foam-5°C
      vaPUREx®LV ICAO B 3% F-10 #7341 73413%CAFS, medium expansion, wetting agent, low expansion-10°C
      ProductProduct No.Proportioning RateType of foamFrost-resistance
      STHAMEX® Performance 1% F-20 #9148 91481%CAFS, high expansion, medium expansion, wetting agent, low expansion-20°C
      vaPUREx®- AR 3/3 F-5 #8342 83423%/3%CAFS, high expansion, medium expansion, wetting agent, low expansion-5°C
      STHAMEX® 3% F-15 #9352 93523%CAFS, high expansion, medium expansion, wetting agent, low expansion-15°C
      STHAMEX® Performance 1% F-10 #9147 91471%CAFS, high expansion, medium expansion, wetting agent, low expansion-10°C
      TRAINING FOAM-N 3% F-0 #9346 93463%medium expansion, wetting agent, low expansion0°C
      EXERCISE FOAM-N 1% F-0 #9141 91411%medium expansion, wetting agent, low expansion0°C
      vaPUREx®- AR 3/3 F-5 #8343 83433%/3%CAFS, high expansion, medium expansion, wetting agent, low expansion-5°C
      STHAMEX® 6% F-15 #9601 96016%CAFS, high expansion, medium expansion, wetting agent, low expansion-15°C
      STHAMEX®-class A Classic 1% F-15 #9144 91441%CAFS, medium expansion, wetting agent, low expansion-15°C
      vaPUREx® LV 0.5% F-10 #7041 70410.5%CAFS, medium expansion, wetting agent, low expansion-10°C
      STHAMEX® class A 0.5% F-15 #9071 90710.5%CAFS, medium expansion, wetting agent, low expansion-15°C
      ProductProduct No.Proportioning RateType of foamFrost-resistance
      vaPUREx®- AR 3/3 F-5 #8342 83423%/3%CAFS, high expansion, medium expansion, wetting agent, low expansion-5°C
      STHAMEX® - MARINE 3% F-20 #9372 93723%CAFS, lightweight foam-20°C
      STHAMEX® - IAF MARINE 2% F-10 #9271 92712%CAFS, lightweight foam-10°C
      STHAMEX® FXS IAF 3% F-10 #2355 23553%High expansion foam-10°C
      STHAMEX® FXS IAF 2% F-10 #2241 22412%High expansion foam-10°C
      vaPUREx®- AR 3/3 F-5 #8343 83433%/3%CAFS, high expansion, medium expansion, wetting agent, low expansion-5°C
      STHAMEX® -IAF MARINE 1% F-10 #9146 91461%CAFS, lightweight foam-10°C
      STHAMEX® -IAF MARINE 2% F-10 #9275 92752%CAFS, high expansion foam, low expansion foam-10°C
      ProductProduct No.Proportioning RateType of foamFrost-resistance
      vaPUREx® FXS AR 3/3 F-0 #2365 23653%/3%Low expansion foam0°C
      vaPUREx® FXS PLY 1% F-0 #2150 21501%0°C
      STHAMEX® FXS IAF 3% F-10 #2355 23553%High expansion foam-10°C
      STHAMEX® FXS IAF 2% F-10 #2241 22412%High expansion foam-10°C
      MOUSSOL®- FF FXS 3/6 F-5 #2941 29413%/6%Low expansion foam-5°C
      vaPUREx® FXS 3% F-0 #2357 23573%Low expansion foam0°C
      ProductProduct No.Proportioning RateType of foamFrost-resistance
      TRAINING FOAM-N 3% F-0 #9346 93463%medium expansion, wetting agent, low expansion0°C
      EXERCISE FOAM-N 1% F-0 #9141 91411%medium expansion, wetting agent, low expansion0°C
      ProductProduct No.Proportioning RateType of foamFrost-resistance
      BosQRet® #1801 1801Retardant
      STHAMEX® Performance 1% F-20 #9148 91481%CAFS, high expansion, medium expansion, wetting agent, low expansion-20°C
      STHAMEX® 3% F-15 #9352 93523%CAFS, high expansion, medium expansion, wetting agent, low expansion-15°C
      STHAMEX® Performance 1% F-10 #9147 91471%CAFS, high expansion, medium expansion, wetting agent, low expansion-10°C
      STHAMEX® 6% F-15 #9601 96016%CAFS, high expansion, medium expansion, wetting agent, low expansion-15°C
      STHAMEX®-class A Classic 1% F-15 #9144 91441%CAFS, medium expansion, wetting agent, low expansion-15°C
      STHAMEX® class A 0.5% F-15 #9071 90710.5%CAFS, medium expansion, wetting agent, low expansion-15°C

      Please contact us

      If you have any questions or issues regarding foam agents, please do not hesitate to contact us.

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        FAQ

        Frequently asked questions about our foam agents

        When fighting aircraft fires, it is crucial to keep the aircraft fuselage intact for as long as possible to maximize the time available for passenger escape and rescue. Therefore, the foam generated from vaPUREx® LV ICAO C 3% F-5 #7371 must not only quickly and reliably cover kerosene spills on the ground, but also be usable for cooling the fuselage. The resulting foam-water mixture foams up exceptionally well at foam pipes and nozzles, and the highly fluid foam quickly covers large spills. When the foam jet is directed at the fuselage, the cooling foam blanket forms on the outer shell. It flows downwards around the fuselage until it drips off, covering any remaining hotspots beneath or in the immediate vicinity of the fuselage. Thanks to its excellent foaming properties, foam coverage heights can be achieved that reliably cover kerosene spills even on uneven terrain away from the runway, quickly reducing heat exposure to the aircraft fuselage. We offer suitable user training for airports.
        Airport fire trucks were historically designed for use with low-viscosity AFFF. Switching to a foam extinguishing agent manufactured without PFAS necessitates a system check. After the vehicle has been professionally cleaned, the foam extinguishing agent can be added. A field test allows for verification of the proportioning rate and the resulting foam quality. Sampling should be carried out under the most critical operating conditions, i.e., at minimum and maximum flow rates. Since vaPUREx® ICAO C 3% F-5 #7371 is a water-like, Newtonian foam extinguishing agent, all commercially available proportioning systems can dose the agent into the extinguishing water. Foam production and quality then depend on the nozzle used. If foam quality testing is not possible, we recommend using monitors with foam tubes. We have already achieved excellent results with many monitors using hollow jet nozzles. A fire-fighting foam must exhibit a minimum expansion rate while maintaining good flow properties. vaPUREx® LV ICAO C 3% F-5 #7371 allows for universal use with a wide variety of monitor and nozzle types, combined with maximum extinguishing performance. We offer vehicle inspections as a service. We also support conversion projects and conclude them with "foam user training.".
        Worldwide, the ICAO standard applies to civil aviation. In Europe, EASA guidelines for the safe operation of airfields and airports are currently being introduced in parallel and as a supplement. For foam extinguishing agents, the certification standard according to ICAO Annex 14 applies, with a fire performance test according to Levels A, B, and C. Level C represents the highest performance requirement. A kerosene fire must be extinguished under test conditions with the smallest possible application rate within a specified time frame. Levels B and A allow for an increase in the application rate, but the maximum extinguishing time remains the same. Often, further standards are considered necessary. However, Mil-Spec or other NATO regulations are not a prerequisite for the use of foam extinguishing agents at civil airports. What is important is that the foam extinguishing agent is comprehensively tested and certified according to ICAO standards. Our vaPUREx LV ICAO C 3% F-5 #7371, with its achieved fire performance level of Level C, thus meets the most stringent requirement and allows airport operators to extinguish fires involving aircraft very quickly.
        The first ban was imposed by EC 2006/122 and prohibited the placing on the market of products with a PFOS content of >50ppm from December 12, 2006 for “placing on the market”. Use was then permitted until June 27, 20011 for those extinguishing agents that had already been placed on the market before the date of entry into force (i.e. in the inventory of fire departments).
        The WHG (Water Resources Act) requires every person within its scope of application to “avoid any detrimental change in the characteristics of water bodies” (WHG §5, Para. (1), 1.). The discharge of substances into bodies of water is generally subject to authorization and is bound by certain regulations. These are set out in various legal ordinances (including the AwSV (Ordinance on Installations for the Handling of Substances Hazardous to Water)). Since the introduction of the WHG, there has been a fundamental duty of care (which also includes the duty to provide active information) for the handling of substances hazardous to water, which includes all foam extinguishing agents and, in particular, extinguishing water.
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