Teflon™ PFA 440HPB
Molding and Extrusion Resin

Product Information
For inventory control purposes, product name may be followed by an X.

Processing

Products labeled PFA 440HPB and PFA 440HPB X are equivalent, and all

Teflon™ PFA 440HPB can be processed by conventional melt extrusion,

information in this document is applicable to both.
Typical Applications
Applications for Teflon™ PFA 440HPB include fluid handling components
for critical, high-purity processes, like semiconductor, pharmaceutical, andbiotechnology, as well as applications where purity in the parts-per-billion
range is needed. Teflon™ PFA 440HPB offers a slightly lower melt flow rate
than Teflon™ PFA 440HPA, ultimately providing a higher degree of stresscrack resistance.

and by injection, compression, and transfer molding processes. Highmelt strength and heat stability permit the use of relatively large die
openings and high temperature draw-down techniques that increase
production rates. Reciprocating screw injection molding machines arepreferred. Corrosion-resistant metals should be used in contact withmolten fluoroplastic resin. Extruder barrel should be long, relative todiameter, to provide residence time for heating the resin to approximately
390 °C (730 °F). For more detailed processing information, including
recommended draw-down ratios, consult your Chemours representative.

Description

Safety Precautions

Teflon™ PFA 440HPB is a special purpose fluoroplastic resin available in

WARNING! VAPORS CAN BE LIBERATED THAT MAY BE HAZARDOUS

pellet form. This resin is a chemically modified form of Teflon™ PFA 340
that combines many of the benefits of the parent resin (a relatively hightypical melt flow rate of 14) with several additional benefits including
enhanced purity, improved thermal stability while processing, and chemicalinertness; for example, to ozonated fluids. Table 1 shows the typical
property data for Teflon™ PFA 440HPB.
Teflon™ PFA 440HPB is a premium resin with the lowest level ofextractables designed to meet ultra-high purity requirements. Teflon™
PFA 440HPB has a relatively high melt flow rate for injection moldingand extrusion processes, and the highest level of inertness due tostable end group polymer structure. The enhanced purity of Teflon™
PFA 440HPB makes it suitable for applications that require improved
color, lower extractable fluorides, and freedom from other foreignmaterials. This product contains no additives and is designed for hostile
chemical environments where purity in the parts-per-billion range isneeded. Examples are in semiconductor manufacture, fluid handlingsystems for industry or life sciences, and instrumentation for precise
measurements of fluid systems. Compared to other thermoplastics, thehigh melt strength and thermal stability of Teflon PFA 440HPB can be™

used to improve processing rates, combining the processing ease of
conventional thermoplastics with many properties similar to those ofIF INHALED.
Before using Teflon™ PFA 440HPB resin, refer to the Safety Data Sheetand the latest edition of “The Guide to the Safe Handling of FluoropolymerResins,” published by The Society of the Plastics Industry, Inc.
(www.fluoropolymers.org) or by PlasticsEurope (www.plasticseurope.org).
Open and use containers only in well-ventilated areas using local exhaust
ventilation (LEV). Vapors and fumes liberated during hot processing ofPFA Teflon™ 440HPB should be exhausted completely from the workarea. Contamination of tobacco with these polymers must be avoided.
Vapors and fumes liberated during hot processing that are not properlyexhausted, or from smoking tobacco or cigarettes contaminated withTeflon™ PFA 440HPB, may cause flu-like symptoms, such as chills, fever,and sore throat. This may not occur until several hours after exposure andwill typically pass within about 24 hours. Mixtures with some finely divided
metals, such as magnesium or aluminum, can be flammable or explosive
under some conditions.
Food Contact Compliance
Properly processed products made from Teflon™ PFA 440HPB resin
can qualify for use in contact with food in compliance with FDA 21 CFR
177.1550 and European Regulation (EU) No. 10/2011. For details andpolytetrafluoroethylene.

information, please contact your Chemours representative.

Properly processed products made from neat Teflon™ PFA 440HPB

Storage and Handlingresin provide the superior properties characteristic of fluoroplastic

Special product isolation and packaging procedures are used by Chemours

resins: chemical inertness, exceptional dielectric properties, heat
resistance, toughness and flexibility, low coefficient of friction, nonstick characteristics, negligible moisture absorption, low flammability,
performance at temperature extremes, and excellent weather resistance.
In a flame situation, products of Teflon PFA 440HPB resist ignition and™

to eliminate external contamination of Teflon™ PFA 440HPB resin.
Processors also must avoid contamination for successful production ofhigh purity products. The properties of Teflon™ PFA 440HPB resin are notaffected by storage time. Ambient storage conditions should be designed
to avoid airborne contamination and water condensation on the resin when

do not promote flame spread. When ignited by flame from other sources,

it is removed from containers.

their contribution of heat is very small and added at a slow rate with very

Freight Classifications

little smoke.

Teflon™ PFA 440HPB resin is classified as “Plastics, Materials, Pellets.”
Packaging
Teflon™ PFA 440HPB is supplied as pellets and is available in 25-kg
multilayer bags with an integral polyethylene liner.

Molding and Extrusion Resin

Teflon™ PFA 440HPB

Table 1: Typical Property Data for Teflon™ PFA 440HPB

Property

Test Method

Unit

Typical Value

GENERAL
Melt Flow Rate

ISO 12086

ASTM D3307

g/10 min14

Melting Point—ASTM D4591°C (°F)

305 (581)

Specific Gravity—

ASTM D792—

2.15

Critical Shear Rate, 372 °C (702 °F)

—

—1/s

50

ISO 12086

ASTM D3307

MPa (psi)

MECHANICAL
Tensile Strength
23 °C (73 °F)

25 (3,600)

250 °C (482 °F)

14 (1,800)

Ultimate Elongation

ISO 12086

ASTM D3307%

23 °C (73 °F)

300

250 °C (482 °F)

480

Flexural Modulus

ISO 178

ASTM D790

MPa (psi)

23 °C (73 °F)

590 (85,000)

250 °C (482 °F)

55 (8,000)—

ASTM D2176

Cycles

30,000*

ISO 868

ASTM D2240—

D55

Dielectric Strength, Short Time, 0.25 mm (0.010 in)

IEC 243

ASTM D149

kV/mm (V/mil)

80 (2,000)

Dielectric Constant, 1 MHz (10 Hz)

IEC 250

ASTM D150—

2.03

Dissipation Factor, 1 MHz (106 Hz)

IEC 250

ASTM D150—<0.0002

Volume Resistivity

ISO 1325

ASTM D257

ohm·cm1018

Water Absorption, 24 hr—

ASTM D570

%

<0.03

Weather and Chemical Resistance———Outstanding

MIT Folding Endurance (0.20 mm, 8 mil film)
Hardness Durometer‡

ELECTRICAL
6OTHERISO 4589

ASTM D2863%>95

Continuous Service Temperatureg

Limiting Oxygen Index——°C (°F)

260 (500)

Flammability Classification†—UL 94—V-0* Depending on fabrication conditions‡ Historical standardgDefinition of continuous service temperature: The continuous service temperature is based on accelerated heat-aging tests, and represents the temperature at which tensile strength andultimate elongation retain 50% of the original values after 20,000 hr thermal aging. Continuous service temperature above 260 °C (500 °F) may be feasible, depending on such factors as
chemical exposure, support from the substrate, etc. When considering uses of Teflon™ PFA 440HPB above 260 °C (500 °F), preliminary testing should be done to verify suitability.

† These results are based on laboratory tests under controlled conditions and do not reflect performance under actual fire conditions; current rating is a typical theoretical value.
Note: Teflon™ PFA 440HPB meets the requirements of ASTM D3307, Type I
Typical properties are not suitable for specification purposes.
Statements or data regarding behavior in a flame situation are not intended to reflect hazards presented by this or any other material when under actual fire conditions.

HOW TO USE THE TEFLON™ BRAND NAME WITH YOUR PRODUCT
Teflon™ is a registered trademark of Chemours for its brand of fluoroplastic resins, coatings, films, and dispersions. The Teflon™ brand name is licensed by Chemours in association with approved applications.
Without a trademark license, customers may not identify their product with the Teflon™ brand name, as Chemours does not sell such offerings with the Teflon™ trademark. Unlicensed customers may refer tothe Chemours product offering with only the Chemours name and product code number descriptor as Chemours sells its product offerings. There are no fair use rights or exhaustion of rights to use the Teflon™
trademark from buying from Chemours, a Chemours customer, or a distributor without a trademark license from Chemours.
If you are interested in applying for a trademark licensing agreement for the Teflon™ brand, please visit www.teflon.com/license
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covering such use. For further information, please contact your Chemours representative. For medical emergencies, spills, or other critical situations, call (866) 595-1473 within the United States. For those outside of theUnited States, call (302) 773-2000.
The information set forth herein is furnished free of charge and based on technical data that Chemours believes to be reliable. It is intended for use by persons having technical skill, at their own discretion and risk. The
handling precaution information contained herein is given with the understanding that those using it will satisfy themselves that their particular conditions of use present no health or safety hazards. Because conditionsof product use are outside our control, Chemours makes no warranties, express or implied, and assumes no liability in connection with any use of this information. As with any material, evaluation of any compound under
end-use conditions prior to specification is essential. Nothing herein is to be taken as a license to operate under or a recommendation to infringe any patents.
NO PART OF THIS MATERIAL MAY BE REPRODUCED, STORED IN A RETRIEVAL SYSTEM OR TRANSMITTED IN ANY FORM OR BY ANY MEANS ELECTRONIC, MECHANICAL, PHOTOCOPYING, RECORDING OR OTHERWISEWITHOUT THE PRIOR WRITTEN PERMISSION OF CHEMOURS.

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