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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 GUARDPROTECT and MAINTAIN.

You would have seen 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. We hope there are smoke alarms dotted around you and if not, you NEED smoke alarms!! dotted around you. But what happens if you need something different. Something more specialised or how about something 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 in systems that are fully automated or manually activated.

Across this page, we will look at how Cold Fire is used in these fire suppression systems, but we will also look at how you can stop a fire from spreading and how to suppress a fire. How you can inhibit the development of toxic hydrocarbon smoke and achieve this with a combination of fire suppression and fire retardants. So later we will look at the area of Fire Retardants or FR’s as they are known in the industry and introduce you to Fire Block.

OK, so let us tell you about some of these solutions.

environmentally friendly in the true sense of the word

times faster at cooling compared to water*
*Intertek Testing Services
a truly GREEN wetting agent

Cold Fire 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.

Capable of fighting Class A, B, D or F type fires. Environmentally friendly in the real 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 motorsport.

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 pit-stop during the 2009 Indianapolis 500. He not only survived the most spectacular pit-lane fire but continued and finished the race in 4th place. 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, dry powder is still used in mobile fire extinguishers found in many buildings and you should be looking to remove these if you have any.

Ecclesiastical Insurance, an Ethical and Trusted insurer for over 130 years, summarise the issue of using dry-powder in buildings. You can follow this link Ecclesiastical to read their thoughts on using dry-powder in buildings.



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 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 several 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 safely.

Property, Commercial 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 several 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 40 foot 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

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 waste recycling fire every year. 40 are regarded as tactical and require huge resources to extinguish over days, weeks, and sometimes months.

Click on the link to see how Cold Fire was used in this Case Study from Northamptonshire Fire and Rescue Service.

The Ultimate Fire Suppression Solution

Before we move on, we would like to discuss how Cold Fire can be used in combination with Fire Block to provide the ultimate fire suppression solution. But first, you need to know a little more about of Fire Retardants and like most things in this fire industry, you need to start with knowing the facts even if they are differncult to digest.



Across our website, you would have seen how Cold Fire can provide you with one of the very best firefighting agents on the market today. Use Cold Fire within a fire suppression system and it now offers you benefits that other agents cannot match. We have discussed how the world of firefighting and fire suppression is changing. So now we would like to discuss another industry. 

If you thought firefighting agents and fire suppression were tricky, buckle-up and grab yourself a drink and let us give you an overview of an area that seems to defy belief.

Welcome to the world of FIRE RETARDANTS  (FR’s). Now before we start, we would like to be upfront. There are parts of the FR’s story that we are not going to delve too deeply into as they fall into a ‘grey area’ of myth and legend.

Fire Retardants

If you are not aware now, we are sure by the time you finish reading this section that FR’s are in EVERYTHING.

We can safely say that right now; you are either sitting on, travelled to your destination in or you are near something that has FR’s in them. How can we be so sure?

Here are just some of the everyday products that use FR’s. Your PC, Tablet, Mobile, TV, Radio, Chair, Sofa, Mattress, Carpet, Kids Clothing, Kids Beds, Kids Toys, Baby Carriers, Sportswear, Rainwear, Wall Cladding, Paint, Building Wood, Car Seats, Train Seats, Plane Seats, Food Utensils and Food Packaging. As you probably gathered already, the list goes on and on and on.

Because of their abundant use, you find them in the very air we breathe, in the water, we drink, in our soil. FR’s are regularly found in adults, although higher concentrations are found in children. I know all this sounds like a horror movie. But why are FR’s used in all these things? Well, in some way that depends on where you live.

Here in the UK, we have the highest concentration of FR’s in our furniture due to our strict Fire Regulations. The issue with FR’s is that over time they break-down, many are applied as a gel and after many years turn to dust. If you choose to look, because of this dust, you can find them anywhere. When the furniture is set-alight, there are further issues as they emit other highly toxic chemicals. Independent tests * between sofas from the UK, and Europe (EU) show that UK sofas burnt more slowly, they also emitted 2 – 3 times more toxic gas than an EU sofa. It is worth noting the EU sofa had NO FR’s.

The issue of FR’s is not new. Breast Cancer UK has said the US and UK have the highest levels of flame retardants found in human body fluids. You can click on this link to read the Background Briefing document on FR’s. They found that FR’s have Endocrine-Disrupting Chemicals (EDCs) that interfere with our hormone system and may increase the risk of various health problems, including breast cancer linked to abnormal hormone function in the thyroid. This plays a critical role in foetus and childhood development.

There are many types of FR’s out there. Aluminium Hydroxide is regarded as safe; however, they also pose a direct threat to human health? The group of FR’s that cause the most significant concern are referred to, as “Organic”. There are many studies on the use of these organic FR’s that include brominated flame retardants (BFR’s), chlorinated and organophosphorus. The industry has stopped using many BFR FR’s, but like C8 foams that were removed many years ago in firefighting, these are all “legacy” compounds. They continue to stay in our environment forever.

We mentioned previously that this topic defies belief. Let us explain why this is and why many are concerned.

When a governing body deems a product unsafe, they put into place a procedure that will ensure that the product or item is removed. If there is a threat to life, they will issue a recall, and you would hope that this will solve the issue. If something is deemed life-threatening it should be removed, right? Wrong. What if we told you that you might be using, unwittingly, one of the most significant FR’s to be banned worldwide right now in your home. What is this product? Your mattress.

As FR’s are removed, new ones replace them. If your mattress or furniture is old, they will contain one of the toxic removed FR’s. The manufacture would be informed to stop using the FR and they replace it with another. Where you contacted to remove your current mattress that is now full of a banned FR’s? Do you even know what type of FR’s they used? The answer to all of these will be no.

Now compare this to the Agriculture industry. They use the same types of toxic chemicals; in fact, many of the components used in FR’s are found in pesticides. When one is removed, they also stop using it; however, it is here where things are very different. They HAVE TO inform their end-user and all remaining now banned chemicals are returned and destroyed. Not in the furniture industry. But it doesn’t stop there.

OK, now you know you might want to find a new mattress. You visit your local shop and there on the mattress you see “no chemicals added during manufacturing” fantastic. But sorry, this refers to the process of manufacturing. It is still required by law to add many kilograms of FR’s. But how can they claim this? The Fire Regulations state FR’s are a requirement for all furniture, the manufacturers claim their products do have any chemicals added during manufacture, so there is a ‘grey area’, so they can claim “no chemicals added during manufacturing”. Confused?

With several influential organisation such as Breast Cancer UK, Cancer Prevention Society, Greenpeace and the UK Food Standards Agency, supported by UK Fire Brigade Union Contaminates Group, we hope to see changes soon. However, the Furniture Industry Research Association and other groups continue to support the use of FR’s in UK furniture. Existing Fire Regulations do need to change.

We have still to see the outcome of the Grenfell inquiry by the UK Commons Environmental Audit Committee, and recommendations will follow. Many residents reported that after the fire they had developed the “Grenfell Cough” and other health issues such as vomiting, skin complaints and breathing difficulties. Many of these are being associated with breathing in toxic chemicals given of by so much furniture burnt.

There needs to be a reduction in the use of FR’s used in furniture. Labelling needs to identify chemicals used in FR’s and then used on furniture, and children products need to be removed from such strict Furniture and Furnishings Regulations.

Now you have an overview of the current position with Fire Retardants. We hope you found this useful and we will add further information when we have it. We do have our own Fire Retardant called Fire Block, we would like to introduce you to something that does not contain ANY toxic chemicals and we are currently moving forward with testing this on many different materials in 2020 and into 2021.

* Richard Hull, Professor of Chemistry and Fire Science at the University of Central Lancashire



Both Cold Fire and Fire Block can suppress fire and flames, but they do it totally different ways. Both protect and can be used together to provide the ultimate level of protection. To understand why they are different, let us look at how you use each one.

Cold Fire is a WET product. You mix it with water, based on requirements. It is applied directly or through one of our fire suppression systems. It will directly fight the fire, stop flames from developing and then extinguish.

Fire Block is a DRY product. It is pre-mixed and ready to use. It is applied directly on to any surface via a spray or mixed with another product like paint (during manufacture) and allowed to dry. It will stop flames from spreading across a surface and inhibit smoke development.

Fire Block will protect nearly anything it is applied to. It is pre-mixed and is ready to be used, and like all of our products, it is 100% naturally made and environmentally friendly. Once applied, Fire Block protects against FLAME SPREAD and SMOKE DEVELOPMENT. It does this by creating a thermal barrier to prevent flames from spreading.

But what is Suppression and why is it so important?


“the act of keeping something from happening”.



You have read how many FR’s fall into the category that means their use needs some thought. But what do you do when you want to use an FR but don’t want all the issues of using a toxic version. Well, if you need to protect a surface, and you are looking for a GREEN FR without the long list of toxic synthetic chemicals, you should turn to Fire Block.

You have seen FR’s are used in nearly everything we come into contact with. They are everywhere. In most cases, they will be the potentially toxic version. Right from the very beginning, Hydro Navitas Solutions decided to only use Environmentally Friendly products and again like Cold Fire, Fire Block can provide you with something different.

Fire Block, like many fire retardants, has been through some of the hardest tests for this type of product available. It has US NFPA 225 and ASTM-84 standards, each large scale tests for flame spread and smoke development. It has also been independently tested by SGS (Standard Global Services) the world’s leading testing group for Class A materials. It also has NFPA701 (fabric retardancy) for textile fabrics. In the UK we have BS 5867-2:2008 Part 2 for fabrics used in curtains, drapes and window blinds.

In the coming months, we are carrying out a range of fire-related standards including BS 7177 for resistance to ignition of mattresses, mattress pads, divans and bed bases, We have been asked for some time to look at getting Fire Block tested to this standard. It will provide manufacturers of mattresses with a non-toxic FR to add to their mattresses.  Watch this space for further information.

Fire Block is a very versatile product. It is easy to use and can be applied using one of our application methods. We can supply Fire Block in different volumes based on your requirements.

Our 200ml Flairosol unit that uses next generation trigger-based dispensing technology, it provides a continuous 360° fine mist at any angle. For larger coverings, we can supply one of our 5-litre special pressure pumps. This hand-pump operates at 3 bar with an integrated indicator pressure gauge, so while in use you can keep an eye on the operating pressure to ensure a smooth application. We can add an electric pump that automatically generates the required operating pressure.

For large-scale coverings, we can supply our Custodian Complete Backpack (CCB). Our CCB is designed using soft-shell material for comfortable all-day use. Using an 18V lithium-ion battery, our mobile high-performance spray system provides multiple operating pressures, and 4 different nozzles settings for the best cover of Fire Block across a large area. Available in either 10-litre or 20-litres.



We have several new systems that will be launched in 2020 and into 2021. Some of these are highlighted below and when we have further details, we will add them right here. Send an email via this site to be added to our News Update list.

Custodian Total Heritage Protect

The loss of any building due to fire is never a good thing, however, it can be rebuilt. The loss of a heritage or historical building is in so many ways worst, you cannot rebuild heritage. Here in the United Kingdom (UK) there is a fire in one of these types of building everyday, not all are classified as a fully developed fires, some are near-misses but all had the capability to destroy the building.

Heritage buildings are very different to modern buildings. They were built before fire regulations. Over time, these wonderful buildings have been added to and built on, each new addition providing ways for fire to jump from area to area. Any system designed for fire protection is faced with some unique challenges. Our Custodian Total Heritage Protection is different as we divide each part of the building into zones, then we look at how our range of solutions can protect that zone.

If you choose a traditional water based sprinkler system to protect a building of heritage, you will need to except some pretty unacceptable consequences in installing such a system. Some of these are highlighted below.

There will be structural compromises caused during installation. You will need to install many metres of pipe-work that unlike modern building, will have to go through walls and fixed to ceilings across the whole building, or at least in the areas of high-risk. It is here that so many beautiful features of a building can be irreversibly damaged due to the work carried out. Look up next time you visit an historical building, see how these systems cut through precious decorated plasterwork, cornices and mouldings.

If the system is ever engaged, there will be water and further structural damage. Water based sprinkler systems need to use huge volumes of water to achieve suppression. They are designed to run for a period of time until shut-off. Due to the height of the ceilings in many of these buildings, the nozzles throw water across a large area. There are cases where a simple bin fire has caused the total loss of a room. The system activated and whole room was destroyed, everything from the pictures on the walls, rugs on floors, and furniture along with other key precious pieces of works all water damaged.

We look at protecting heritage or historical building slightly differently here. Each area has its fire risk and you need a systems that takes that into account. First you need to look at where fires start. Many fires

Our Custodian Total Heritage Protection

Custodian Equine

Losing anything to fire is sometimes very hard to comprehend. It is the way that fire can totally destroy and the level of devastation it can leave that can be everlasting. Losing a horse, pony, or indeed any four-legged friend to fire is incredibly traumatic. You see, often it isn’t the fire that will kill, it is the smoke. Traditional fire protection does not take this into account, so we are developing a system that will not only suppress the fire, but it will take care of the smoke before the fire can take hold.

A small smouldering fire can produce enough toxic smoke to cause irreversible damage to the lungs of any animal in less than 30 seconds. There have been several cases where horses have been removed from their stables within a yard, but still sadly pass away days later. Stables are designed to encourage natural airflow through the roof voids. It is here that smoke travels across great distances from stable to stable. Smoke is a silent and deadly killer and if any of your animals have been around smoke, we advise to seek advise from your local veterinary adviser.

Our system will detect smoke even before there is any fire. Remember, a smouldering fire in damp straw or hay can sit there and create huge volumes of smoke for many hours without even creating a fire. Watch for the signs. Have you discovered a small dark-patch in the bedding that smells of smoke, but no fire and everything else seems fine? Keep the roof voids in your stables clear of old cobwebs and dust around light fittings, these can cause small sparks that fall into the bedding.

Custodian Marine

We are looking to provide a range of fire suppression systems for leisure through to commercial. So if you are looking for a system for your inland sailboat, motorboat, canal and house barges, or for your ocean going superyacht we hope to have a solution soon. Cold Fire is uniquely positioned to help marine vessels. They are safe to use in confined spaces, they remove the toxic smoke from these areas that will cause visibility issues and amount other key benefits, Cold Fire is both clean and non-slip to use and leaves no mess.

On the horizon

You will have heard it hear first. We are working on a system that will COOLS the outside areas on any size marine vessel.

Using nano-misting technology and our safe propriety coolant agent, our new Custodian Cool system can reduce the ambient temperature by up to 30%. Imagine, next time you are relaxing on your sundeck enjoying the view across the bay with your guests and as the daytime temperature rises, you simply flick a switch. Around you a series of nano-misting nozzles no bigger than the end of your little finger activate and cools the surrounding air.

All this is achieved without fans, without chilled air-conditioned units, it is all done naturally. Don’t be concerned about water drenching you or your guests. Each nozzle is placed out-of-reach and due to the size of the droplets you won’t even know its there. Now you can carry on and enjoy the day. No-longer will you have to retreat into the chilled air-conditioned cabin to enjoy the well-earned benefits of being outside on your boat.

Working with marine industry leading manufactures, our Custodian Cool system is exquisitely incorporated into your craft. Each nozzle and all its workings are hidden behind the panels above you, they can built into your polished stainless steel tubing. We can even design a beautiful structure with ambient lighting. How about a exquisite ‘double helix’ next to the Jacuzzi that will not only cool you, but give you a sequence of colourful lights for your entertainment?

To ensure that you are completely safe. Our Custodian Cool system flows through triple-filtration and then via an Ultra Violet (UV) unit designed to remove any possible trace of waterborne agents, it also ensures that each nano-misting nozzle keeps scale from clogging the system. What this space for future developments.

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

Cold Fire 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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