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Our flame retardants save lives
and belongings -
Clariant helps to protect health and nature

Fire retardants that are halogen-free but full of fire-stopping power

Flame retardants help to save lives by slowing down or stopping the spread of fire or reducing its intensity. Also called fire retardants, they are used in anything from phones and curtains to car seats and buildings. If a fire starts, they may be able to stop it completely – or slow it down and so provide precious extra time for escape.

Clariant’s flame retardants are produced to modern standards in Germany, Switzerland and China. Their brand name Exolit® has become a byword for sustainable fire safety.

Invisible firefighters how do flame retardants work?

Electrical fires in homes are particularly dangerous because they often spread unseen. How better to prevent or slow down the spread of these unseen fires than with invisible firemen?


Non-toxic cutting-edge safety key benefits of our fire retardants


All our Exolit® flame retardants are capable of slowing down or stopping the spread of fire, thereby saving precious lives and belongings


Based on phosphorus instead of halogens like bromine or chlorine, they offer non-toxic, more eco-compatible solutions


Our range can give cutting-edge fire protection to engineering plastics, polyurethanes and thermoset resins, as well as to intumescent and fire-resistant coatings

Get a lightning-quick overview of what we offer


The five main segments we serve are Building & Construction, Electrical & Electronics, Textiles & Fibers, Transportation, and Industrial Applications. Our flame retardants are used to protect steel structures, insulation and coatings in homes and buildings, and help to ensure the safety of cables, switches, housings and other E&E components. Our products go into seat frames, engine covers and many other parts of vehicles, allow the protection of the fibers of carpets and textiles, and we offer phosphorus chemicals for cleaning, metal treatment and other uses. > MORE
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Reliable safety
Dependable fire safety for meeting strict requirements
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Low toxicity
Non-halogenated solutions
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High flexibility
Cutting-edge chemistry for a wide range of applications

Product Lines

We offer tailor-made chemistries for your needs. Based on ammonium polyphosphate, our Exolit® AP line can protect a wide range of materials with intumescent technology, while our liquid EP line is particularly suited for epoxy resins. The Exolit® OP series provides organophosphorus compounds for demanding E&E applications, VF facilitates use with viscose fibers, and RP handling of red phosphorus. Our Hordaphos® products are flame-retarding phosphate esters with many benefits, and we also supply other phosphorus chemicals for uses in industry. > MORE
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Highly innovative
Solutions for lightweighting in e-mobility and other trends
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More sustainable
Halogen-free and available from renewable-based materials
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Thoroughly tested
Developed and serviced with strong capabilities and expertise

Polymers / Materials

Our non-halogenated flame retardants can be used for a wide variety of polymers, with a focus on polyamides, polyesters and polyurethanes. They can be applied in epoxy and phenol resins, latex, linoleum and rubber, as well as for many types of thermoplastic elastomers. They can be added to adhesives, sealants and dispersions, and can protect viscose and non-wovens as well as cotton products. The materials they can be used for also include wood and wood-plastic composites, as well as paper and steel.
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Broad compatibility
Excellent solutions for many different matrices and substrates
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Easy handling
Supplied as powders, liquids and special easy-to-add forms
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EPA recommendation
Halogen-free, low-migration reactive options for PU foams

Over 100 years of innovation and plenty of

of phosphorus chemistry at our German Knapsack site
of cumulated technical expertise in our R&D team
New innovations
currently in development in the flame retardant field

Watch how we innovate to improve safety

Do non-halogenated flame retardants do their job? Wolfgang Diegritz has the insights

»Halogen-free flame retardants have been developed to lower the smoke toxicity and to prevent the migration of the additives.«

Portrait of Dr. Wolfgang Diegritz from Celanese.
Dr. Wolfgang Diegritz
Senior Engineer Field Development
E&E, Europe, Celanese

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Get a closer look at our product lines and the industries we serve

Welcome to our service and delivery standards

  • Services
    Appreciating the needs of our customers is one of the leading priorities for us. As part of our on-going efforts to enhance the service towards customers we have developed a condensed and practical overview of our service and delivery standards.
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