ExxonMobil Chemical's New Santoprene TPV Weatherseal Grade Offers Excellent Adhesion at Reduced Costs for Corner MoldingsExxonMo
11 Février 2008 - 10:00AM
Business Wire
ExxonMobil Chemical has commercialized a new Santoprene�
thermoplastic vulcanizate (TPV) exterior weatherseal grade for
automotive and construction corner moldings. Used to join ethylene
propylene diene monomer (EPDM) or TPV weatherseal profiles,
Santoprene TPV B200 provides excellent adhesion, versatile
aesthetics, rubbery touch and critical performance at reduced cost.
Santoprene TPV B200 offers an enhanced bond to EPDM or TPV profiles
for more reliable corner seals. Requiring no adhesives or
mechanical interlocks, the improved adhesion of this TPV is a
result of the unique interaction of the materials during cooling.
The bond is designed to last the lifetime of the car over a wide
range of temperatures. �The improved adhesion of Santoprene TPV
B200 is critical as traditional corner molding products have not
provided the desired bond to EPDM,� said Eric Jourdain, automotive
weatherseal segment manager, ExxonMobil Chemical specialty
elastomers. �We�ve met that challenge by creating a TPV-to-EPDM
bond which performs as well as EPDM-to-EPDM in corner moldings but
at significantly reduced costs.� Because Santoprene TPV B200 offers
much faster cycling times compared with EPDM, processing time
savings of 15 percent to 30 percent can be achieved. Good part and
tool design can also reduce or eliminate labor intensive
post-processing such as trimming flash. In addition, the faster
cycling time can reduce or postpone capital investment in new
molding machinery and tools because of increased production. The
physical appearance of Santoprene TPV B200 corner moldings offers
several advantages compared with those made using EPDM. Unlike
EPDM, Santoprene TPV B200 allows textured corner molding or end cap
surfaces to accurately match the part aspect and color of the
profiles to which they are being adhered. Santoprene TPV B200
corner moldings do not have the �blooming� or aging problems
associated with EPDM moldings. The cooler TPV molding process also
maintains the quality, appearance and integrity of heat-sensitive
flocked or slip-coated surfaces of EPDM profiles which can be
damaged in EPDM corner mold presses. Processing corner moldings
using Santoprene TPV B200 is easy and efficient. The extruded EPDM
or TPV profiles are cut to length and placed in the mold. The
Santoprene TPV B200 is then injection molded on top of these
profiles. This fast and accurate processing produces fewer errors
and any resulting scrap may be recycled. Santoprene TPV B200 is
available in 65 Shore A. About ExxonMobil Chemical ExxonMobil
Chemical is a global leader in technology, product quality and
customer service with petrochemical manufacturing and/or marketing
operations around the world. For more information visit:
www.exxonmobilchemical.com. About ExxonMobil Chemical�s specialty
elastomers ExxonMobil Chemical offers customers one of the
industry's broadest portfolios of specialty elastomer products.
This includes Santoprene� brand TPVs, Vistamaxx� specialty
elastomers, Vistalon� EPDM (conventional and metallocene catalyst),
Exxelor� modifiers and Exact� plastomers. These products provide
innovative elastomeric solutions combined with global support in
material selection, design, processing, and supply chain
management. Note to Editors: 1. Vistamaxx, Vistalon, Exxelor and
Exact are trademarks of ExxonMobil Chemical. Santoprene is a
trademark of an Exxon Mobil Corporation affiliate. 2. The term
"ExxonMobil Chemical" refers collectively to some or all of the
companies affiliated with Exxon Mobil Corporation which have
chemical manufacturing and/or marketing operations around the
world.
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