EXOLIT OP 1240

Product Details

Exolit OP 1240 is a flame retardant based on an organic aluminium phosphinate which is a thermally stable white solid without any hazard classification or labeling. It can be easily compounded into polyesters and subsequently processed again to manufacture flame retarded parts used in consumer or industrial products. 

Benefits

• Non-hygroscopic, insoluble in water and organic solvents
• High efficiency due to its high phosphorus content
• UL 94 V-0 rating down to 0.4 mm thickness
• Suitable for PET sheet extrusion
• Suitable for both glass fibre reinforced and unreinforced grades
• The flame retarded polyester compounds exhibit good physical and excellent electrical properties
• Good colorability
• Versatile use with synergists
• Non-halogenated flame retardant with favorable environmental and health profile

Characteristics	Unit	Target Value	DS¹)	TD²)	Test Method
Phosphorus	%(w/w)	23.3 - 24.0	☑	☐	Photometry after oxidizing dissolution; (11/17) or wavelength dispersive X-ray fluorescence spectrometry; (11/23)
Water / Moisture	%(w/w)	max. 0.2	☑	☐	Thermogravimetry; (11/03)
Density	g/cm³	1.35	☐	☑	at 20° C
Bulk Density	kg/m³	400 - 600	☐	☑
Decomposition Temperature	°C	> 300	☐	☑	(TGA 2% weight loss)
Average Particle Size (D50)	µm	25 - 50	☐	☑

¹) Delivery specification: The product is monitored on a regular basis to ensure that it adheres to the specified values. Test methods: Clariant method numbers 11/xx in brackets.
²) Technical data: The technical data are used solely to describe the product and are not subject to regular monitoring. 

Typical Applications

Exolit OP 1240 is a flame retardant for thermoplastics and thermosets. Due to its high phosphorus content the product is distinguished by a high efficiency. 

Exolit OP 1240 was developed especially for the use in polyesters. It is suitable for both glass fibre reinforced and unreinforced grades. The flame retarded polyester compounds exhibit very good physical and electrical properties. 

In PBT, a dosage of 20 % (by wt.) Exolit OP 1240 is usually sufficient to obtain the UL 94 V-0 classification for electrical components (at 1.6 as well as 0.8 mm thicknesses). In PET, less than 15 % are required to pass UL 94 V-0. Synergistic effects are known with other flame retardants like melamine polyphosphate, melamine cyanurate or zinc borates. 

Subject to the polymer grade, processing conditions and glass fibre reinforcement the dosage of the flame retardant may vary.