Minimum Order: $30 USA, $150 Canada/Mexico/PR/VI, $250 International
DuPont® Teflon®:PFA 450 HP fluoropolymer is a special purpose resin available in clear, 2.5-mm
(0.1-in.) pellets. This resin is a chemically modified form of TeflonÂ® PFA 350 that combines many of
the benefits of the parent resin with several new ones. The additional benefits may include enhanced
purity, improved thermal stability while processing and chemical inertness, for example, to ozonated
fluids. Similar to Teflon® PFA 350, this resin has a relatively low flow rate, long flex life, and
enhanced resistance to environmental stress cracking compared with most other grades of Teflon® PFA.
The enhanced purity of Teflon® PFA 450 HP makes it suitable for applications that require improved
color, lower extractable fluorides, and freedom from other foreign materials. This product contains
no additives and is designed for hostile chemical environments where purity in the parts-per-billion
range is needed. Examples are in semiconductor manufacture, fluid handling systems for industry
or life sciences, and instrumentation for precise measurements of fluid systems. TeflonÂ® PFA 450
HP is preferred when extended service is required in hostile environments involving chemical, thermal,
and mechanical stress.
The improved thermal stability of Teflon® PFA
450 HP results in reduced amounts of bubbles in
final parts and decreased corrosion of processing
equipment. TeflonÂ® PFA 450 HP combines the
processing ease of conventional thermoplastics
with properties similar to those of polytetrafluoroethylene.
Properly processed products made from neat
TeflonÂ® PFA 450 HP resin provide the superior
properties typical of fluoropolymer resins: retention
of properties after service at 260Â°C (500Â°F), useful
properties at âÇô196Â°C (âÇô320Â°F), and chemical
inertness to nearly all industrial chemicals and solvents.
Dielectric properties are excellent. Molded
products have moderate stiffness and high ultimate
FEATURES AND BENEFITS
In a flame situation, products of Teflon® PFA 450
HP resist ignition and do not themselves promote
flame spread. When ignited by flame from other
sources, their contribution of heat is very small and
added at a slow rate with very little smoke.
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