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Teknor Apex Brings Global Commercial
Availability and Application Support for Creamid Compounds, which Have
Successfully Replaced Metals and Exotic Thermoplastics

A new family of compounds from Teknor Apex
Company raises the processability and physical properties of glass
fiber-reinforced polyamides to a new level, enabling injection molders to take
on more demanding metal-replacement applications or replace alternative
thermoplastic materials for greater versatility in processing.

New Creamid compounds exhibit higher
tensile strength and better flow properties compared with standard glass-filled
polyamide counterparts, greater dimensional stability, lower water absorption,
improved chemical resistance, and enhanced surface aesthetics. Creamid property
data is available at: The
compounds differ chemically from standard polyamides and were originally
developed in Germany by Plastic-Technologie-Service (PTS), a custom compounder
acquired by Teknor Apex in 2016.

Creamid compounds are now commercially
available in the Americas and Asia for the first time, bolstered by the
experienced application development support and global manufacturing
capabilities of Teknor Apex. Featured grades include: CREAMID-A3H7G8.2S*9217/2
(40% glass loading); CREAMID-A3H7G10.2S*9217/2 (50% glass loading); and
CREAMID-A3H7G12.2S*9207/2 (60% glass loading). These compounds have been
successfully used in Europe for automotive air vents, spoilers, fan blades,
spring adapters, and key fobs.

The processing advantages of Creamid
compounds introduce dramatic improvements for injection molders in comparison
with standard glass-filled polyamides. When compared with a standard 43%
glass-filled polyamide, a 40% glass-filled Creamid compound shows a 68% improvement
in spiral flow tests, reaches a 41% lower peak injection pressure, and requires
43% less clamp force. Longer flow length and lower injection pressure translate
into a wider processing window, more efficient filling of complex or thin-wall
cavities, reduced part warpage, and a possible reduction in the number of gates
or knit lines. A lower clamp force also opens the possibility of increasing the
number of cavities or running parts in a smaller, less costly molding press.

In metal replacement applications, Creamid
compounds are frequently formulated for a flexural modulus as high as 21 GPa,
giving molded parts excellent dimensional stability. These grades also provide
tensile strength up to 260 MPa, a property more commonly expected from die-cast
aluminum or zinc, and offer significant savings in part weight.  When combined with longer tooling life and
lower material cost, metal-replacement projects with Creamid polyamides
typically produce very high returns on investment for OEMs, according to Brian
Rickard, director of strategy and business development for the ETP Division of
Teknor Apex.

“Creamid compounds provide designers and
processors of metal-replacement and other high-specification components with an
ultra-high performance alternative to standard glass-filled nylons,” said Mr.
Rickard.  “Our introduction of these
products is the first commercial initiative by Teknor Apex in what will be an
extensive expansion of our portfolio of engineering thermoplastic compounds,
drawing on the diverse range of unique ETP technologies developed by PTS.”

Creamid compounds are manufactured at
Teknor Apex facilities in the U.S. and Europe and are available worldwide. It
also supplies a comprehensive range of reinforced and specially modified
polyamide compounds under the brand name Chemlon, producing them at plants in
the U.S. and Singapore. In North America, its compounds have over 80
specifications from automotive OEMs.

This article was written by Content Editor

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