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UL-certified Halogen-compliant New PC Grades by Polymer Technology & Services

Published on 2016-11-04. Author : SpecialChem

MURFREESBORO, TN -- Polymer Technology & Services, LLC (PTS) has extended its TRISTAR® family of polycarbonate (PC)-based materials with four halogen-compliant types certified 746R and 746H by Underwriters Laboratories, UL. The new grades are intended for electrical and telecommunication devices, business machines, and small and large appliances. They will be available in Europe, North America and Asia.

UL Certification


UL Certification

The four new halogen compliant compounds are TRISTAR PC-HC (which has a UL94 flammability rating of V-2), TRISTAR PC-FR-HC (V-0 and V-1, depending on thickness), TRISTAR PC-FRN-HC (5VA and V-0), and TRISTAR PC-10GF-HC (5VA and V-0).

Applications of UL Certified Grades


Polycarbonate grades with UL94 V-2 ratings are used in many products that are not powered by electricity, but which need the strength of PC; examples are hand tools, cases, lenses, personal protective gear and sports equipment.
Attended electrical devices such as electrical hand tools, appliances and business machines require V-0 PC grades.
Unattended electrical devices, such as electrical or telecommunications enclosures, mounted outside or inside of buildings, require that the more stringent 5VA listed grades be used.

Phil Berg, VP of Technology, said:
“The numerous UL certificates that we have obtained for these new grades demonstrate the ability we have at PTS to develop and manufacture high performance plastics with effective self-extinguishing properties, without the use halogen-based additives. We achieve this through the use of the latest flame retardant technology and advanced manufacturing process control, which we apply in all our plants to serve customers globally.

“Companies in the electrical and electronics industries, especially in consumer electronics, are increasingly calling for plastics that comply with UL 746R and 746H, and we are very happy to be in a position to meet their demands. Our materials not only have excellent performance in their first life, but also offer increased flexibility for reuse and recycling.”


The new TRISTAR grades all come with full UL Yellow Cards, which provide detailed information on flammability ratings and electrical properties. They are available for sampling now, and will be fully commercial by the end of the year in North America and Asia, and in Europe during the first quarter of 2017.

UL94 Flammability Ratings Explained


  • A UL94 V-2 flammability rating indicates that burning stops within 30 seconds on a specimen bar held vertically after a flame has been applied twice for 10 seconds; drips of particles are allowed. 
  • A V-1 flammability rating is the same as V-2, except that drips of particles are allowed as long as they are not inflamed. 
  • For a material to achieve a V-0 rating, burning must stop within 10 seconds, and drips of non-flaming particles are allowed. 
  • 5VA indicates that burning stops within 60 seconds on a vertical specimen, but the flame ignition source is applied five times for five seconds; no drips are allowed; in addition, a plaque specimen held horizontally with the flame directly underneath may not develop a hole.

TRISTAR is a registered trademark of Polymer Technology & Services.


About PTS


Polymer Technology and Services, LLC is a manufacturer of high quality; UL listed thermoplastics, and a supplier of name brand and highly engineered resins. PTS offers the broadest range of world class plastics, combined with all the benefits of an efficient business model, for distribution and technical service.

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Source: Polymer Technology & Services, LLC
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