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Elastomers Offers Technical Papers At SAE World Congress And Exposition
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Release from DuPont (Formerly named DuPont Dow Elastomers when this article was written)
Dow Elastomers will present three technical papers at the 2002 Society
of Automotive Engineers World Congress and Exposition on Tuesday, March
5 in Detroit.
first presentation discusses the challenges facing automotive sealing
system engineers brought on by the pending tightening of evaporative
emissions regulations. The paper presents data to help the engineer
select the best gasket to meet more stringent emission and fuel
paper looks at a new fluoroelastomer, Viton® VTX-8525, and compares
it to Viton® GFLT and other fuel system sealing materials. A
third paper introduces a new polymer for molded seals, Viton®
VTX-8802, that is designed be highly resistant to base attack, and
to provide better resistance to hydrocarbon fluids compared to currently
available base-resistant elastomers.
pioneer in fluoroelastomers, Viton® has helped establish new
standards for high performance automotive seals for more than 40
years. Because Viton® fluoroelastomer is so effective against
extremes of heat, chemicals, fuel mixtures and fuel additives, it
has become an essential element in meeting strict emissions requirements.
DuPont Dow has developed many types of Viton® to meet specific
end-use and processing needs.
technical papers are:
the Right Elastomer for Air Intake and Engine Oil System Gaskets."
With more stringent environmental regulations governing the design
of engine gaskets, the paper, by Theresa M. Dobel and Robert E.
Fuller of DuPont Dow, provides data designed to help an engine-sealing
engineer evaluate fluoroelastomer (FKM), hydrogenated nitrile
rubber (HNBR) and vinyl methyl silicone elastomer (VMQ, silicone)
materials in terms of their long-term sealing performance. The
research shows that various FKM types -FKM-AL (Viton® AL)
and FKM-GFLT (Viton® GFLT) provide the best overall balance
of low temperature flexibility and permeation performance. The
paper will be presented at 9 a.m. on March 5 in Room 02-43 at
the Cobo Center.
New Fluoroelastomer for Fuel Systems and Seals." The paper,
by Ronald D. Stevens of DuPont Dow looks at a new low temperature
fluoroelastomer, Viton® VTX-8525, which has excellent fuel
resistance, and compares it to current GLFT and other fuel system
sealing materials. The data shows that Viton® VTX-8525 has
good resistance to blends of Fuel C and methanol while maintaining
the ability to seal below -40°C in a static O-ring sealing
test. The presentation will be in Room 02-43 at 9:30 a.m. at the
New Development In Base-Resistant Fluoroelastomers." The
paper by John G. Bauerle and Phan L. Tang of DuPont Dow introduces
a new polymer, Viton® VTX-8802, that provides improved resistance
to hydrocarbon fluids and also exhibits excellent resistance to
base attack. The new polymer is comprised of TFE and propylene,
a small amount of a proprietary cure site monomer, and a proprietary
incorporated cure system. It also provides excellent mixing characteristics
on 2-roll mills and in internal mixers. The paper will be presented
at 11:30 a.m. in Room 02-43 at the Cobo Center.
DuPont Dow Elastomers
Dow Elastomers, a global supplier of specialty elastomers with global
headquarters in Wilmington, Delaware, is a joint venture between
the DuPont Company and The Dow Chemical Company, with more than
US $1 billion in sales. The company is the industry leader in chloroelastomers,
ethylene elastomers and fluorinated elastomers, serving the automotive,
chemical, construction, general rubber and wire and cable industries.
Release: DuPont Dow Elastomers Offers Technical Papers At SAE World
Congress And Exposition
Article: DuPont Dow Elastomers Introduces Advanced Polymer Architecture
is a registered trademark of DuPont.
Inc. is located in the Denver Technological
Center in Southeastern Denver, Colorado.
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