Flame Retardants

Saving lives – saving health

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Our non-halogenated flame retardants provide environmentally more compatible protection for buildings, electric and electronic equipment as well as textiles and other materials used in airplanes, trains, busses and ships. Clariant’s portfolio is based on phosphorus chemistry, with production sites in Knapsack, Germany, Muttenz, Switzerland and Lufeng, China. Clariant's flame retardants are all marketed under the trade name Exolit®.

Phosphorus chemicals for various applications

Exolit® OP – Tailor-made flame retardant solutions for electronic and electrical equipment

Plastic components in contact with electrically live metal parts are subject to more and more stringent fire safety regulations. With our sustainable non-halogenated flame retardant Exolit® OP, smartphones and laptops are effectively protected against overheating. For more information please read our Exolit® OP Innovation Spotlight Story here.

What are flame retardants good for?

Flame retardants are an essential element for the safety of products around us. To see where and how flame retardants act and how they can save lives please click here.


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    • Thermoplastics

      The performance profile required of modern flame retardants has changed significantly in recent years. Alongside their effectiveness in the event of a fire, environmental considerations play an increasing role in all phases of the product life cycle – from production and processing through to actual use and end-of-life recycling. more

    • Thermosets & Fibers

      With its Exolit® grades Clariant offers an extensive range of non-halogenated flame retardants for thermosets based on phosphorus chemistry. more

    • Intumescent Coatings

      An intumescent system is a combination of various compounds that in the event of fire react together as a result of the temperature increase to form a carbon foam. This foam attains a thickness of 10 to 100 times of the originally applied coating and insulates the substrate material through its low thermal conductivity. more

    • Phosphorus Catalysts, Cleaning & Metal Treatment

      Clariant is Europe's leading producer of phosphorus pentoxide and polyphosphoric acids. These raw materials are widely used in the production of surfactants as well as organic intermediates for the color, pharmaceutical and vitamins industries. more

    • Exolit OP - Unique chemistry for your safety

      The Exolit® OP series comprises two non halogenated, organo-phosphorus flame retardants families:

      Exolit OP 12xx and 13xx – with x designating a digit: Based on phosphinate chemistry, these flame retardants are especially suited for demanding applications in the electric and electronic sector. There are optimized formulations for engineering thermoplastics like polyamides (Exolit OP 13xx and the latest addition Exolit OP 1400 (TP)) and polyesters (Exolit OP 12xx). The Exolit OP 93x series was developed for epoxy resins in printed circuit boards and other adhesive and thermoset applications.

      The Exolit OP 5xx series for polyurethanes: They are reactive flame retardants which integrate into the polyurethane matrix like a polyol. They show no migration, are more effective than the usual additive flame retardants and have only a minimal impact on the material properties

       

      OP550_structure

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    • Exolit AP - Sophisticated chemistry in a simple formula

      Ammonium polyphosphate - a polymeric flame retardant material - is the basis for the Exolit® AP product family, which, as a result of modification and synergist mixtures, covers a very broad application spectrum.

      Exolit AP 422 and Exolit AP 462 are high-quality additives for intumescent coatings. Even at layer thicknesses of less than 1 mm they achieve fire resistance times of over 30 minutes. Apart from the protection of steel structures in buildings, application areas include cable and wood. In addition, the fire properties of textiles and papers can be improved with intumescent coatings based on Exolit AP. In the case of thermosets like epoxy resins and unsaturated polyester resins, Exolit AP 422 paves the way for the production of lightweight components with low solids content. In polyurethane rigid foams that are used e.g. for insulation purposes by the building industry, low smoke density in a fire and avoiding flame retardant migration are important criteria. PUR Foams with Exolit AP 422 can also be recycled.

      Combined with synergists, ammonium polyphosphate becomes highly effective in polyolefins (polypropylene and polyethylene). The whole Exolit AP product family is characterized by extremely low smoke density. Exolit AP is non-toxic, and does not accumulate in the environment, since it is (bio-)degradable by breaking down to naturally occurring ammonia phosphate.

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    • Hordaphos - Versatile phosphate esters at your service

      Chemical background

      The Hordaphos® product group encompasses a range of phosphoric acid esters. The Hordaphos grades are produced by the reaction of phosphorus pentoxide or polyphosphoric acid with an alcohol, whereby a mixture of mainly mono- and diesters and small amounts of triester and phosphoric acid is obtained.

      Properties

      A phosphoric acid ester is as acidic as phosphoric acid and has similar phosphatizing properties. Due to the additional alcohol chain it is far less corrosive. The ionic phosphate functionality imparts antistatic properties to the molecule. Furthermore, when combined with a long chained alcohol the substance (e.g. Hordaphos 222) can be given strong dispersing properties. Thus, depending on the chain length and branching of the alcohol, the Hordaphos grade can be emulsifying, foam regulating, dispersing, wetting, dissolving, etc.

      Application

      As multifunctional additives they are used especially in household and professional cleaning products, but also in pigment pastes, paints, coatings, cosmetics, in formulations for metal working and metal cleaning, in textile production, crop protection, mining etc. Depending on the Hordaphos grades, the substance acts as a mild acid, corrosion inhibitor, brightener, antistatic agent, wetting agent, dispersing and/or emulsifying agent.

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    • Phosphorus Chemicals - Oxidation state bingo for the advanced

      We are experts in creating solutions for our customers' needs. Clariant is a leading producer of phosphorus pentoxide and polyphosphoric acids in Europe. These raw materials are widely used in the production of surfactants as well as organic intermediates for the color, pharmaceutical and vitamins industries. Further applications are cleaning, plasticizing and the usage in specialty synthesis.

      Phosphoric acids and derivatives

      Starting from white phosphorus we manufacture inorganic products such as red phosphorus, phosphorus pentoxide and polyphosphoric acids. Our organic phosphorus products include various phosphate esters used for cleaning and plasticizing as well as derivatives of phosphonic and phosphonus acid used for specialty synthesis.

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    • Flammability Testing Services

      In the course of developing new flame retardants and formulations we carry out flammability tests in our laboratories in Knapsack and Gersthofen, Germany. To our customers, we also offer flammability testing as a service, e.g.

      • Flammability (UL 94 / DIN 4102 B2)
      • Glowing wire test (DIN EN 60695-2-10/12/13)
      • Limited oxygen index (ISO 4589)

      In our laboratory at Knapsack, Germany, we can compare the performance of a range of different intumescent coating formulations using standard fire tests. Thereby, we can support our customers in developing new formulations for meeting new standards or challenges in fire safety requirements. For more information please get in touch with us.

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    • August 09, 2016

      Clariant products and solutions contribute to sustained development of automotive and transport industry

      Clariant, a world-leader in specialty chemicals, presented today at its regional headquarters for the Greater China region leading solutions dedicated to achieving sustainable development in automotive industry. In the presentations delivered in front of leading local and regional technical and mass media, Clariant's technical experts highlighted Clariant's edge in the three areas of energy savings, emissions reduction and safety improvements, the current priorities for the automotive and transport industry in China to achieve improved sustainability. more

      June 16, 2016

      Clariant to focus on Value for People at K 2016

      Clariant, a world leader in specialty chemicals, will focus on the value it brings to people across the plastics industry's entire value chain, from processors to brand owners and end-users, at K 2016 (Booth J11/Hall 8a) from October 19-26, 2016. more

      April 25, 2016

      Clariant at Chinaplas 2016: emphasis on local tailored support for Greater China and South East Asia

      Clariant, a world leader in specialty chemicals, offered Chinaplas 2016 visitors insight into the Value for People its local focus is bringing to the region – from product innovations centered on the specific needs of its plastics processors and product developers, to new on-the-ground investments to progress Clariant's commitment to becoming a China Insider. more

      April 01, 2016

      Clariant to feature halogen-free flame retardants and Florida institute of technology jet dragster at UTECH 2016

      Clariant, a world leader in specialty chemicals, and Florida Institute of Technology, jointly with Larsen Motorsports, will exhibit at UTECH 2016 in Charlotte, N.C., April 6-7. The Florida Institute of Technology dragster, driven by Elaine Larsen of Larsen Motorsports, will be on display in booth #102, along with the next-generation prototype. more

      March 10, 2016

      Clariant to highlight sustainable and innovative products at ACS

      Clariant, a world leader in specialty chemicals, will exhibit at the American Coatings Show in Indianapolis, Indiana, April 12-14, 2016. Clariant will feature sustainable and innovative products for a wide range of applications in the automotive, decorative, and industrial coatings industries at exhibit booth #1367. more

    • July 22, 2015

      What are flame retardants good for?

      Flame retardants are an essential element for the safety of products around us. They reduce the risk of ignition and fire spread of many plastic, textile and construction materials which results in more available escape time for occupants. See here where and how flame retardants act and how they can save lives. more

      April 28, 2015

      Exolit® OP 1400 (TP): Additional Technical Benefits Discovered

      The high processing temperature of polyamides, sometimes reaching up to 340 °C, is always a challenge for flame retardants. During the compounding, polymer degradation, formation of decomposition products and discoloration can occur in case of insufficient thermal stability of the additives. The temperature range between melting and beginning decomposition is the »processing window« of the polymer. more

      April 28, 2015

      Exolit® OP 1400 (TP): Green Light given for Investment

      At the end of December, Clariant’s Senior Management gave the green light for the investment into the commercial production capacity of the latest generation of Exolit products for Polyamides, the Exolit OP 1400 (TP). According to the construction plan, the new plant line will be operational during Q1 / 2016. more

      April 28, 2015

      Markus Mirgeler is new head of Business Line Flame Retardants

      Since January 1st 2015, Markus Mirgeler is the new Business Line Head Flame Retardants. Kay Kutschbach who led the BL for more then six years, changed within Clariant to a new challenge. more

      April 28, 2015

      Article About Exolit Flame Retardants for Bio-Based Polymers

      In the 1/2015 issue of the Magazine »Kunststoffe«, Clariants TM team wrote an interesting article about halogen-free flame retardants for bio-based polymers. Topics are wood plastic composites (WPC), PLA compounds and bio-based polyamides. Flame retarded formulations based on Exolit AP and Exolit OP are discussed and already commercial available solutions are listed. more

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    • Download our Brochures to Learn More

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      EcoTain - sustainability brochures

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    • Pinfa_Logo_2362x736

      Non-halogenated Phosphorus, Inorganic and Nitrogen Flame Retardants

      Clariant is a founding member of the organization for non-halogenated Phosphorus, Inorganic and Nitrogen Flame Retardants, PINFA, a sector group of Cefic, the European Chemical Industry Council. 

      “Flame retardants are essential for the safety of many products around us. Fires are far less likely to start from small flames or electrical faults, if materials resist these ignition sources.”

      pinfa is the Phosphorus, Inorganic and Nitrogen Flame Retardants Association and is a Sector Group within Cefic, the European Chemical Industry Council. pinfa represents the manufacturers and users of non-halogenated phosphorus, inorganic and nitrogen flame retardants (PIN FRs).

      The members of pinfa share the common vision of continuously improving the environmental and health profile of their flame retardant products. Therefore, pinfa members seek to dialogue with the users of PIN FRs in order to identify their needs and technologies they are looking for.

      pinfa also co-operates with national & supranational organisations (EU, OECD, United Nations) & other industry associations, consumer organisations & non-governmental organisations and will ensure the development of scientific knowledge related to the whole life cycle of PIN FRs.

      pinfa works in close cooperation with its sister association pinfa North America, the North American Phosphorus, Inorganic and Nitrogen Flame Retardants Association located in USA.

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    • IGSB_logo_w300
      IGSB Interessengemeinschaft Stahl - Brandschutzbeschichtung

      The in 2012 under the umbrella of bauforumstahl e.V. organized IGSB (Interessengemeinschaft Stahl-Brandschutzbeschichtung) has set itself the target to offer information and support about modern fire protection systems. It sees itself as a competence center related to fire protection for steel applications. A team of experts is available to provide support and advice to all interested parties. Visit IGSB on www.igsb.info.

      The attached brochure is currently only available in German. An English version will follow.

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Disclaimer:
This information corresponds to the present state of our knowledge and is intended as a general description of our products and their possible applications. Clariant makes no warranties, express or implied, as to the information’s accuracy, adequacy, sufficiency or freedom from defect and assumes no liability in connection with any use of this information. Any user of this product is responsible for determining the suitability of Clariant’s products for its particular application. 


* Nothing included in this information waives any of Clariant’s General Terms and Conditions of Sale, which control unless it agrees otherwise in writing. Any existing intellectual/industrial property rights must be observed. Due to possible changes in our products and applicable national and international regulations and laws, the status of our products could change. Material Safety Data Sheets providing safety precautions, that should be observed when handling or storing Clariant products, are available upon request and are provided in compliance with applicable law. You should obtain and review the applicable Material Safety Data Sheet information before handling any of these products. For additional information, please contact Clariant.

* For sales to customers located within the United States and Canada the following applies in addition: No express or implied warranty is made of the merchantability, suitability, fitness for a particular purpose or otherwise of any product or service.

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