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“one that guards and protects or maintains”


The above is the definition of Custodian. There are others, but we quite like this one. So from now on, that’s precisely what we can offer you. To GUARD, PROTECT and MAINTAIN.

You would have a read how amazing Cold Fire® wetting agent is via our other pages, and if not, we would suggest you go and have a read because everything on this page uses the unique benefits of Cold Fire®.

Cast your mind back. On an average day, how many times do you see something placed, attached or part of the kitchen, office or workplace that is there to guard, protect and maintain the world around you? We would guess quite a lot.

Some are there to guard you, such as your smoke alarm should you unexpectedly burn your toast. Some are there to protect you, such as a sprinkler system (toasters are a primary cause of fires you know!) that will spring into action and suppress that fire you might have accidentally started. Others, well they are there to maintain and keep you safe like the locks on your door.

We bet there is a Fire Extinguisher somewhere close to you right now, and we hope there are smoke alarms (if not, you NEED smoke alarms!) dotted around you, but what happens if you need something different, more specialised or how about bigger, a lot bigger!

Well, we have you covered. We have partnered with some of the biggest suppliers of Fire Suppression Systems across every industry sector to bring you the fantastic benefits of Cold Fire®. Let us tell you about some of these systems.

environmentally friendly in the true sense of the word

times faster at cooling compared to water*
*Intertek Testing Services
a truly GREEN wetting agent
Coldfire® firefighting will tackle hydrocarbons, polar solvents, metals, rubber types, tarmac and many more sources of fire.

A truly GREEN fire fighting and fire suppression wetting agent that is capable of fighting Class A, B, D or F type fires.

Environmentally friendly in the true sense of the word.

100% biodegradable, non-toxic, non-corrosive, non-slip, safe to handle, soluble in water and indefinite shelf life.

percent biodegradable, non-toxic, non-corrosive

As mentioned in our Cold Fire® page, it’s not new and has been around since 1991. It’s globally used by Fire and Rescue Services. It is used in Marine, Military and many other fire support services. Some of the toughest standards in fire suppression are the ones found in Motorsports.

Due to its use across Motorsport, it has been tested on some of the most volatile fuels known. This is why you not only find it in the fire engines at Drag Racing (Santa Pod) but also in their cars. Top Fuel and others use Cold Fire® and if you have ever seen a Methanol fire (not that you can see it, it burns invisibly) at the starting tree with the driver strapped into their 10,000 horsepower monster, you will understand why you need a product like Cold Fire®. It’s very different fighting a fire when you can see it, but with Cold Fire®, you point, drench and you know it’s out.

If anyone is in any doubt of the effectiveness of Cold Fire®, click on the link and let us introduce you to Indy Car driver, Vitor Meira. While carrying out a pitstop during the 2009 Indianapolis 500, he not only survived the most spectacular pitlane fire but continued and finished the race. They are so confident in Cold Fire® ability to extinguish fires, they are instructed to STAY in their car and remove the steering wheel, just in case.

So you have now seen how Cold Fire® works, now let us show you why it’s simply a better choice for all types of fire suppression.


Remember, it’s not a Foam or Dry Powder. There are so many benefits for using Cold Fire® over both of these agents, and this also includes water in many cases. Cold Fire® is clean so there is NO clean-up required and this can be one of the biggest factors of down-time after any fire suppression system has been activated. Let us look at this area in a little more detail.

If you use a foam-based fire suppression system and it is activated in a vehicle, in a property or any other situation you are in most cases left with a foamy mess. If you don’t clean this down straight away, you might be left with a now crusty mess also. Many foams are manufactured with toxic chemicals, these can and do, cause corrosion, this corrosion is not always obvious and can cause a myriad of failures many weeks or even months later.

Now there are systems out there that use both foam and dry powder. These individually are an interesting bunch of chemicals, mix them together and you have a very different cocktail indeed. Foam, as mentioned, will cause corrosion if not cleaned off straight away, however dry powder has its own unique issues. Dry powder is not only corrosive but when you add moisture (i.e. water or foam) it can create an acidic solution. This dry powder that finds its way into electrics can at a later stage cause all sorts of worrying issues with electrical failures, and dry powder that gets sucked into the engine, well, it won’t be a happy ending.

It is worth pointing out here that dry powder is still used in mobile fire extinguishers found in many buildings, click on the link for Ecclesiastical, a specialist insurer who summarise its issues in buildings rather nicely here.


You will find more details on standards on the Cold Fire® on its own page, but standards used in fire suppression systems are an altogether more tricky topic. For example, standards for Sprinkler and Misting systems vary in a number of different ways and echo many of the issues faced with wetting agents here in the UK, misting systems are still developing and we feel, misunderstood.

Currently, your sprinkler system standard covers everything from components used through to installation and their design. Misting, on the other hand, has very little within its standards, but don’t think this is because they don’t need it, they do. ​Misting has many benefits over the traditional sprinkler system. It uses less water (a good thing) so you can get less property damage and clean-up, they are generally more efficient and the system can be a lot smaller without the need for large tanks of water.

Water misting is not the answer to all though, large areas can cause issues for a misting system, and the weather can play a big part when the misting droplet can have a surface area 100 times greater than the volume of water released from a sprinkler system, so depending on your requirements, you choose the right system. Now as with Cold Fire®, the UK does not have a published standard, again you need to go to the US and the NFPA (National Fire Protection Association) 750 Standard on Water Mist. The EU has done some work on this (CEN TS 14972), but the UK has not adopted this. Adding Cold Fire® to sprinklers and misting continues to be a challenge, but as you will see later, insurers are stepping outside their agreed standards and signing off the use of Cold Fire® based on their own tests with it.

So where does this leave Cold Fire®?


There are many industries that can and do benefit from using Cold Fire®. Let us look at a few key ones, we are adding new systems to our offer all the time and building Partnerships with new companies who can offer ways of delivering Cold Fire®. We continue to focus on these types of relationships, so if you feel there is something we can work on together, give us a call, however, in the meantime lets move on.

Motorsports and Vehicle Systems

Across the globe there are serval standards that include wetting agents, you won’t be too surprised to learn here in the UK they are playing catch-up, however, it’s not all doom and gloom. We have already mentioned that Indy Car, but there is also NASCAR who have vehicle standards that use Cold Fire®.  We recently had one of our partner suppliers Lifeline Fire and Safety Systems pass one of the toughest vehicle suppression standards out there, the FIA 8865 (Plumbed-in and hand-held fire extinguisher systems) and they have plans to pass further FIA standards this year.

Motorsport is often unique in their requirements for fire suppression due to the already mentioned CRAZY FUELS they use, because of this they tend to have their own set of standards, however, they do have to follow international law. Foams used within the motorsport industry will be affected by the European Commission Regulation, EU 2017/100 mentioned in our Cold Fire® page. Cold Fire® is not affected by any of these new regulations and can be used now.

We are currently developing a range of specialist vehicle suppression systems that will include large wheeled vehicles. There will also be systems that use our clean agent for buses and coaches as they continue to change to greener methods and move to hybrid and full electric. British Touring Car Championship is another to switch over to a Cold Fire® based system.

Specialist Vehicles

With the myriad of different products out there that companies are being required to process, it has led to a range of vehicles that have one purpose. Manufacturers are building more and more bespoke units that fit a purpose, one of these is the specialist area of Security Shredding. On a daily basis, we produce huge volumes of waste and with technology replacing paper, sometimes this needs to be dealt with the highest level of security involved. Shredding companies have mobile bespoke units manufactured, but sometimes being mobile comes with its own issues.

A secure mobile shredding unit can sometimes develop a smouldering fire due to the heavy-duty machinery matching used in the unit and when this happens (not very often luckily), you can’t just pull up and dump many tonnes of highly confidential paperwork, shredded or not on to the road and call the Fire and Rescue Service. So what do you do?  Well, in this case, you go back to basics and let Cold Fire® do its job. We have developed a range of high-pressure piercing lances designed to get to the heart of the fire, each can be modified based on their requirements.

Vehicles that previously suffered from total loss fires, such as refuse vehicles can now have a way of getting into the waste from the outside without having to open the rear and exposing it to oxygen that often results in an uncontrollable fire that can engulf a vehicle before the Fire and Rescue Service has arrived. Using Cold Fire® and it’s unique ability to penetrate deep into the material, our Custodian 360° system can be applied by the driver in a matter of minutes and extinguish safetly.

Property, Commerical Buildings and Waste Recycling Sites

Already mentioned above, many of the types of systems used in this sector fall into either traditional sprinklers or misting systems, but sometimes these are simply not enough and then you have to use something special. Another one of our partner suppliers who use Cold Fire® in their systems is Helios Fire Systems. There are certain fires that will give any Fire and Rescue Service a challenge, one of these is Waste Fires, the other is Wildfires and there will be more on this later. For many years waste sites were in the news for all of the wrong reason, fires would seem to happen almost daily across the news with advice to close your windows and stay inside, well things are gradually changing.

Waste recycling site across the UK now have serval options available to them based on their requirements. There are now small cylinder based misting systems capable of extinguishing fires systems would have failed previously, and totally automated systems that use state-of-the-art thermal cameras that can pick out the slightest fluctuation in temperature and then, via strategically placed turrets that fire Cold Fire® to the very heart of the fire and because of the rapid cooling which Cold Fire® provides extinguish fires that include lithium-ion batteries in a matter of minutes.

With all this automated fire suppression technology available to companies there really is a way to reduce the risk of fires, but not all Cold Fire® system are like the above. We provide a range of small 200ml Bag-on-Valve aerosol fire extinguisher carried by personnel around the site capable of dealing with small spot fires. More traditional 6L and 9L polished stainless steel fire extinguishers, and if you really need them, our largest wheeled extinguisher ranging from 25L up to 100L if required. Units like these have been used in motorsports for many years.

Adding Cold Fire® to existing systems still has its issues, however, we have seen several leading insurers sign-off on the use of Cold Fire® in systems. There have been lithium-ion batteries that have caused fires in processing halls with a forty foott high waste pile that has been extinguished by systems using Cold Fire®. We continue to find new and exciting places to use Cold Fire® and property and buildings are key areas.

Fire and Rescue Services now use Cold Fire® to extinguish waste fires that used to burn for weeks, now they are out in hours. Not all sites are legal and have fire suppression systems, many fires are found on illegal sites. There continues to be over 350 per year, up to 40 are regarded as tactical and require huge resources to extinguish over many days and weeks, and sometimes months. One waste site we recently supported was in Northamptonshire. Click on the link for the Case Study from the Fire and Rescue Service.


More to follow

Equine Heat and Fire Suppression

More to follow

Historic Buildings, Roof Voids and Thatch

More to follow

coldfire® firefighting products

Met with some very professional Fire Officers today, demonstrating "Cold Fire" effects on Straw / Thatch, renowned for its water resistance. This was a 30sec, Post extinguish, Burn back test. A 1% "Cold Fire" additive prevented re-ignition.Posted by Cold Fire hydro navitas ltd on Tuesday, March 22, 2016

Coldfire® firefighting and Custodian™ fire suppression can offer all this and more. This is a winning combination that’s used throughout the world and can provide you with a totally green firefighting solutions that is safe to use.
100% biodegradable, non-toxic, non-corrosive and truly environmentally friendly
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custodian™ fire suppression
custodian™ fire suppression
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