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Our solutions for transportation -
fire-protecting the mobility of the future

Cl- and Br-free flame retardants for more sustainable ways of getting from a to b

Light, tough and adaptable plastics not only contribute to making conventional cars lighter and reducing carbon emissions. They also play a major role in the swiftly growing sector of e-mobility.

We support the global drive for more sustainable modes of transportation with halogen-free flame retardants that offer a safer and environmentally superior alternative to brominated legacy types. Whether in automotive, e-mobility, railway or aviation applications: Our Exolit® OP and AP solutions help materials take the shortest route to better fire safety and an enhanced mobility future.

Halogen-free solutions for safe connections - in every sense of the word

While electric cars help cut emissions, their high-energy electric components like battery, cables and connectors also represent new fire risks. In mass-transport systems like trains, such risks are highly regulated. In the EU, for instance, interiors have to be extensively tested to ensure both low flammability and smoke production for safe evacuation.

Our non-halogenated Exolit® flame retardants enable materials to pass these tests and meet the requirements for low smoke production as well as smoke toxicity – ensuring the safety of passengers. And with our Exolit OP® Terra products, we add both safety and sustainability to e-mobility: Just as effective as when fossil-based, they are made from renewable carbon sources (using a mass-balance approach).
New Exolit® OP plant
Clariant opens new production facility for halogen-free flame retardants in Daya Bay, China.

Find out more about our solutions for the transportation sector

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Light weight for automotive reduced part weight means less fuel consumption

Example of injection-molded engine cover made from flame-retarded PA 66 (glass fiber reinforced); 500,000 parts produced
Clariant Image Transportation_V3 2020

Sustainable fire protection,
key benefits of our solutions for transportation


Our products preserve the low density of automotive components, leading to lower fuel consumption and carbon emissions


Exolit® flame retardants have good processing properties, enabling both complex molds and increased throughput


Low smoke density and absence of corrosive combustion gases like hydrochloric acid (HCl) and hydrobromic acid (HBr) increase safety

Why might our products protect NASA’s first human Mars mission? Gordon Nelson has the answer

»With our strong interest in polyurethanes, it is exciting to have halogen-free flame retardants that can be bound in – saving physical properties and preventing migration.«

Clariant Image DrGordonNelson 2020
Gordon L. Nelson
Professor of Chemistry, Florida Institute of Technology

Numbers that make a difference

Polymer density advantage
can be provided by our products
compared to halogenated ones
MARHE* values
can be obtained for
thermosets tested to EU rail standards
*Maximum average rate of heat emission
RAL Orange
can be achieved with the
solutions from our Exolit® range

From Terra to Mars – EXOLIT® keeps people safe

  • Exolit® OP 1400 Terra
    Exolit OP 1400 Terra is a non-halogenated flame retardant based on organic phosphinates for reinforced polyamide 6, polyamide 66 and high temperature polyamides. The product achieves its flame retardant effect through a combined gas phase and condensed phase mode of action. Exolit OP 1400 Terra is chemically and from its composition equivalent to Exolit OP 1400, but comes with a mass balance certificate as for its production, renewable based Ethylene was sourced. Therefore we assume that for Exolit OP Terra products no additional performance testing and qualification compared to the standard grade are necessary. For more details see our Innovation Spotlight video.
  • Exolit® OP 560
    Clariant’s Exolit OP 560 is a flame retardant specifically designed for flexible polyurethane foams. As a reactive flame retardant, it can be chemically reacted into the PU matrix, preventing unwanted migration from the material. Therefore, Exolit OP 560 allows meeting the most stringent VOC requirements of the automotive industry and has shown best-in-class performance in demanding low-emission applications. Exolit OP 560 is an easily-to-handle low-viscosity liquid, with a functionality of approx. 2.Exolit OP 560 has been confirmed as »an alternative anticipated to be safer for use in upholstered polyurethane foam« by the United States Environmental Protection Agency (U. S. EPA, August 2015, EPA 744-R-15-002)
  • Exolit® EP 360 (TP)
    Exolit EP 360 (TP) is a low-viscosity, halogen-free flame retardants based on phosphorus chemistry. Both solutions offer a broad resin compatibility, show no sedimentation and address the customer’s need for solvent free processing.
  • Exolit® EP 390 (TP)
    Exolit EP 390 is a low-viscosity, halogen-free flame retardants based on phosphorus chemistry. Both solutions offer a broad resin compatibility, show no sedimentation and address the customer’s need for solvent free processing.

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