This technical information has been contributed by
Teknor Apex Company
Styrenic TPEs for Auto Exteriors Reported to Provide Cost and Processing Benefits Versus Standard TPVs
PAWTUCKET, R.I.—Teknor Apex Co. recently reported that it has expanded its “polymer-neutral” product offering for automotive exteriors by developing styrenic thermoplastic elastomers (TPEs) with alternative cost/performance profiles to those of widely used thermoplastic vulcanizates (TPVs).
The new Sarlink® ME-2200 Series styrenic TPEs are reported to exhibit higher flow than comparable TPVs, enabling molders of exterior components, such as gaskets, seals, and trim, to process complex, intricate designs while shortening cycles through reduced packing and cooling time. In applications where TPV compounds are over-engineered, the new TPE compounds provide cost savings while still meeting the performance requirements of the part. Like TPVs, the Sarlink ME-2200 series compounds are less dense than EPDM and PVC, yielding weight savings of up to 15 and 23 percent, respectively.
Sarlink ME-2200 Series styrenic TPEs are available in hardnesses from 65 Shore A to 40 Shore D. They exhibit excellent UV stability, provide good flexibility over a wide temperature range, and yield a Class A surface appearance, according to Teknor Apex. The compounds are readily colored and, unlike many TPVs, do not require pre-drying prior to molding.
“Sarlink ME-2200 Series TPEs are already in commercial use for static seals, cowl vent seals, and mirror gaskets,” said Jeffrey E. Dickerhoof, senior marketing and sales manager for the Thermoplastic Elastomers Division of Teknor Apex, in a statement. “These new products are the latest examples of a Teknor Apex program to offer a wide-ranging, polymer-neutral portfolio, one that enables us to recommend a compound not because it happens to be what we make, but because it is exactly the right material for a customer’s application.”
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