Our halogen-free Exolit™ OP flame retardants -
safe and sustainable fire safety for the materials of our times

Experience a new OP-timum in modern fire protection

From electrical and electronic components to the foams and fabrics of modern mobility, work and leisure: Our organophosphorus Exolit™ OP flame retardants give non-halogenated fire resistance to polymer materials that combines high performance with exceptional sustainability.

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Exolit™ OP: A connection between e-mobility and safety

Clariant Exolit OP halogen-free flame retardants ensure fire safety for electric vehicle batteries, components and charging infrastructure.
Clariant’s flame retardants for the journey to Mars

Tailored solutions for thermoplastics – plus reactive and green OP-tions

Our Exolit™ OP product line comprises halogen-free phosphorus containing polyols as well as organic phosphinates. The phosphinates and synergistic blends of our Exolit™ OP line can provide fire resistance to a wide range of polymers used in E&E, transportation, fibers and other segments without affecting the high performance of polyamides and polyesters in connectors, switches and other electrical parts, and impart fine-powdered safety to printed electronics and PET fibers. Our phosphorus-based polyols (Exolit™ OP 552 and 560) are reactive solutions for polyurethane foams that become chemically bound to the foam and do not emit the flame retardant or leach out.

Several grades are available as earth-friendly »Terra« versions based on renewable carbon. These drop-in alternatives provide the same OP-timum performance – and go on doing so even after multiple rounds of recycling.

Find out more about our Exolit™ OP solutions

Halogen-free flame retardants: sidestepping the antimony market volatility

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Brochure

Brochure Exolit Overview 202603 EN

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Presentation

Presentation Exolit OP Benefits vs Halogenated FR 202503 EN

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Brochure

Brochure Exolit flame retardants for thermoplastics 202603 EN

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Flyer

Flyer Exolit OP 1466 Exolit OP 1480 202308 EN

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Presentation

Presentation Halogen-free flame retardants in e-mobility 202412 EN

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Exolit OP Patents Intellectual Property Reminder 202205

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Flyer

Flyer Exolit OP 1400 Terra for polyamides 202410 EN

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Flyer

Flyer Exolit OP 1400 for electrical and electronics 202410 EN

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Flyer

Flyer Exolit OP 945 for consumer electronics 202411 EN

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Brochure

Brochure Exolit for Polyurethanes 202410 EN

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Graph showing the favorable smoke density curve of Exolit® OP 1400 and its compliance with the highest EU railway risk level.

The one-two-three of better fire safety,
key benefits of our EXOLIT™ OP line

1.

Exolit ™ OP phosphinates are halogen-free, non-toxic solutions produced with 100% green electricity.

2.

Glass fiber-reinforced PA6 and PA66 composites containing Exolit™ OP can keep UL 94 V-0 rating even after multiple rounds of recycling.

3.

Renewable carbon-based versions without concessions to quality and performance that can be »dropped in« without further tests or approvals.

Are our OP products a good choice for flame-retarding modern electronics? Eason Lee definitely thinks so

»Our material for flexible printed circuit board applications are used in light, thin, powerful electronics – like those supporting 5G. To protect these boards against fire, we use the Exolit OP™ 9xx series, which we highly value for its performance, options in particle size, flame resistancy and consistent quality.«

Portrait of Eason Lee from Taiflex Scientific.

Eason Lee
Assistant Manager, R&D Center, Taiflex Scientific Co., Ltd.

OP-timal numbers for thin and sustainable plastics

mm

Lowest thickness

that can achieve UL 94 V-0
rating with Exolit™ OP

GreenScreen® rating

best-in-class Benchmark 3
result for Exolit™ OP line

>
%

Less carbon

in the footprint of our
Exolit™ OP Terra
products

Advanced fire protection with our EXOLIT™ OP line

Exolit™ OP 1230 Terra

Exolit OP 1230 Terra is a white, fine-grained powder based on an organic phosphinate. The product is non-hygroscopic and it is insoluble in water and organic solvents. Clariant’s Exolit OP flame retardants for polyamides are all based on aluminum diethyl-phosphinate (= DEPAL). The pure substance DEPAL is sold as Exolit OP 1230 and in combination with synergists as Exolit OP 13xx & Exolit OP 14xx types. Exolit OP 1230 is the first non-halogenated flame retardant which can withstand the demanding requirements of this high end segment of engineering plastics. Exolit OP 1230 Terra is chemicially and from its composition equivalent to Exolit OP 1230, 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.

SAMPLE | SDS | DOWNLOADS
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.

SAMPLE | SDS | DOWNLOADS
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)

SAMPLE | SDS | DOWNLOADS