Teflon™ PFA 9738-JN
Rotomolding Fluoroplastic Resin

Product Information
DescriptionProcessing

Teflon PFA 9738-JN is a premium resin available only as
a free-flowing powder. Its most unique features, controlled
particle size and size distribution, provide proper flow andfusion behavior in rotational molding process. In addition,
Teflon™ PFA 9738-JN is chemically modified to yield enhanced
resin purity, lower extractable fluorides, and freedom fromother foreign materials. Its surface smoothness is improvedby minimizing spherulite size, and its chemical permeability
resistance is enhanced by increasing its crystallinity. This
product contains no additives and is designed for hostile
chemical environments where purity in the parts-per-billion
range is needed.

For rotational molding, Teflon™ PFA 9738-JN powder is placed
inside a hollow metal structure that is slowly rotated biaxiallyand heated above the melting point of the powder. As the powder
melts, it builds up on the inner surface of the structure. Powder
flow and distribution are critical, because the high melt viscosityof Teflon™ PFA limits the lateral flow of melted resin. A coolingstep then causes the molten resin to solidify and densify in place,creating an integral lining or a removable, hollow plastic part.

™

The properties of Teflon™ PFA 9738-JN in molded form
are similar to other grades of Teflon™ PFA (perfluoroalkoxy)
fluoroplastic resin. Many properties are similar to those ofpolytetrafluoroethylene (PTFE).
Rotational molding is a favored process for making large,
hollow parts or for lining objects with complex inside surfaces.
Applications for Teflon™ PFA 9738-JN include linings moldedin place using the object to be lined as the mold. Teflon™ PFA
9738-JN is preferred when high performance is a major
requirement involving chemical, thermal, and mechanical stress.
Properly processed rotational moldings made from neat
Teflon™ PFA 9738-JN resin provide the superior properties
typical of the fluoroplastic resins: retention of physicalproperties after service at 260 °C (500 °F), useful properties
at –196 °C (–321 °F), and chemical inertness to nearly allindustrial chemicals and solvents. Dielectric properties areexcellent. Molded products have moderate stiffness and highultimate elongation.
Table 1 shows the typical property data for Teflon™ PFA 9738-JN.
In a flame situation, products of Teflon™ PFA 9738-JN resist
ignition and do not themselves promote flame spread. Whenignited by flame from other sources, their contribution of heatis very small and added at a slow rate with very little smoke.

Typical End Products
Teflon™ PFA 9738-JN is ideal for many end products for fluid
handling in the chemical processing industries, including pumphousings, vessels, columns, elbows, tees, and pipe sections
with unusual shapes. In addition, any hollow structure withinternal contours that permit uniform coating by powder
flow is a candidate for lining, provided it can withstand hightemperatures. Because of its enhanced resin purity, Teflon™ PFA
9738-JN is suitable for use in semiconductor manufacture andfluid handling systems for industry or life sciences.

Good molding requires close attention to many details, such as
choice of metals for the mold, preparation of the metal surface,rate of rotation, venting, and heating/ cooling cycles. The equipment
must operate at high temperature and resist thermal shock.

Safety Precautions
WARNING! Vapors can be liberated that may be hazardous if
inhaled.
Before using Teflon™ PFA 9738-JN, refer to the Safety
Data Sheet and the latest edition of “The Guide to the Safe
Handling of Fluoropolymer Resins,” published by The Societyof 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, or from smoking tobacco or cigarettes contaminatedwith Teflon™ PFA 9738-JN, may cause flu-like symptoms (chills,fever, sore throat) that may not occur until several hours after
exposure and pass within about 24 hours.
Vapors and fumes liberated during hot processing should beexhausted completely from the work area; contamination oftobacco with polymers should be avoided.
Mixtures with some finely divided metals, such as magnesium oraluminum, can be flammable or explosive under some conditions.
During rotational molding, a large volume of air is used to melt
Teflon™ PFA 9738-JN resin and cool the molten resin. Vapors
from molten resin should not be allowed to enter the operatingarea. Negative pressure should be maintained in the ovenchamber, so that off-gas will be exhausted to the outside.
The same is true for the cooling chamber where exhaust blower
rating should exceed that of the cooling air blower. Hot molds
should be disassembled in a well-ventilated area. Vent tubes
should be used on all molds to avoid pressure buildup.

Storage and HandlingSpecial product isolation and packaging procedures are usedby Chemours to eliminate external contamination of Teflon™ PFA
9738-JN resin. Processors also must avoid contamination forsuccessful production of high-purity products.

Teflon™ PFA 9738-JN

Rotomolding Fluoroplastic Resin

The properties of Teflon™ PFA 9738-JN resins are notaffected by storage time. Ambient storage conditions should
be designed to avoid airborne contamination and formationof water condensation on the powder when it is removed fromcontainers.

Packaging
Teflon™ PFA 9738-JN is packaged in drums containing 25 kg
net weight.

Table 1: Typical Property Data for Teflon™ PFA 9738-JN
Property
ThermalMelting Endotherm PeakCoefficient of Linear Thermal Expansion
21–100 °C (70–212 °F)
100–149 °C (212–300 °F)
149–208 °C (300–406 °F)
Upper Service Temperature
Melt Flow Rate (MFR 372/5.0)
Mechanical
Specific Gravity
Tensile Strength, 23 °C (73 °F)
200 °C (392 °F)
Tensile Yield Strength, 23 °C (73 °F)
Ultimate Elongation, 23 °C (73 °F)
200 °C (392 °F)
Flexural Modulus, 23 °C (73 °F)
200 °C (392 °F)
Hardness, Shore Durometer
MIT Folding Endurance (0.20 mm film)
Electrical
Dielectric Strength, Short Time, 0.25 mm film
Dielectric Constant, 60–106 Hz
Dissipation Factor, 60–106 Hz
Volume Resistivity
General
Water Absorption, 24 hr
Weather and Chemical Resistance
Limiting Oxygen Index

Test Method*

Unit

Typical Value

D3307°C (°F)

305–317 (581-603)D696mm/mm/°C—
D 3307°C (°F)g/10 min

D792

—

D3307

MPa

D3307

MPa

D3307

%

D790

MPa

D2240
D2176

—cycles

2.12–2.17
331515430
570
440
52
D60
185,000**

D 149
D150
D150
D 257

kV/mm——
Ω·m80
2.03
0.00011016

D570—
D2863%—%<0.03
Outstanding>95

140x10–6
180x10–6
220x10–6
260 (500)
6.0

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.
*ASTM, unless otherwise specified.
**Depending on fabrication conditions.

HOW TO USE THE TEFLON™ BRAND NAME WITH YOUR PRODUCTTeflon™ 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
CAUTION: Do not use Chemours materials in medical applications involving permanent implantation in the human body or contact with bodily fluids or tissues, unless the material has been provided fromChemours under a written contract that is consistent with Chemours policy regarding medical applications and expressly acknowledges the contemplated use. For further information, please contact yourChemours representative. For medical emergencies, spills, or other critical situations, call (866) 595-1473 within the United States. For those outside of the United 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 conditions of 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 anymaterial, 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.

For more information, visit teflon.com/industrial
For sales and technical support contacts, visit teflon.com/industrialglobalsupport© 2016 The Chemours Company FC, LLC. Teflon™ and any associated logos are trademarks or copyrights of The Chemours Company FC, LLC. Chemours™ and the Chemours Logo aretrademarks of The Chemours Company.
Replaces: L-12847 C-10830 (4/16)