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Engine Cover

Chemlon® 904-13 and 204-13 GVNH Nylons from Teknor Apex Provide High Continuous-Use Temperatures for Applications like Engine Covers

PAWTUCKET, RI, U.S.A., February 28, 2017: Two new glass fiber-reinforced polyamide compounds from Teknor Apex Company exhibit outstanding flame retardance and exceptional thermal stability for injection molded under-hood automotive components such as engine covers, the company announced today.

Chemlon® 904-13 GVNH and 204-13 GVNH are glass-filled nylon compounds with low halogen content that meet the UL-94 V-0 standard by passing the vertical burn test at a thickness of only 0.8 mm (0.031 in.). Conventional halogenated compounds achieve this degree of flame retardancy only with high levels of flame retardant and synergistic filler that make processing difficult, yield poor surfaces, and increase product density. In contrast, the new Chemlon compounds yield a smooth surface, are 15% less dense than conventional counterparts, and are readily processed for parts with long flow paths or thin walls.

Equally valuable for under-hood applications is the thermal stability of the new compounds, according to Jeff Schmidt, automotive industry manager for the Nylon Division of Teknor Apex. “Chemlon 904-13 GVNH is an especially high-temperature material, with a heat deflection temperature of 245 °C [473 °F] and a high degree of property retention at elevated temperatures,” noted Mr. Schmidt. “In fact, this compound provides a continuous use temperature that is much higher than specification.”

Property data is available at


About Teknor Apex. Teknor Apex Company, a privately held firm founded in 1924, is one of the world’s leading custom compounders of plastics. Teknor Apex produces flexible and rigid vinyl, thermoplastic elastomers, nylons, color masterbatches, specialty chemicals, and hoses. The company is headquartered in Pawtucket, RI, U.S.A. and operates thirteen manufacturing facilities worldwide in the United States, Belgium, Germany, China, and Singapore. To learn more visit:

The Nylon Division of Teknor Apex Company is an international supplier of engineering thermoplastics for the transportation, consumer products, and industrial markets. It produces reinforced and specially modified compounds of polyamide 6, 6/6, 6/10, and 6/12 under the Chemlon® brand.

FOR MORE INFORMATION: Europe and Americas: Tel:1-401-725-8000. Tel. from U.S. only: 1-800-237-3167. E-mail: Asia: Tel: 65-6265-2544. Fax: 65-6265-1821. Email: