Teflon™ PTFE DISP 35
Fluoroplastic Dispersion

Product Information
Description

Safety Precautions

Teﬂon PTFE DISP 35 is a milky white aqueous PTFE
dispersion stabilized with an anionic dispersant. It is used
for co-coagulation with various fillers to produce productswith a range of strengths, porosities, and colors required
for the application. The use of reinforcing agents can offer
such advantages as improved resistance to cut-through andabrasion, increased dimensional and form stability, higher
rate of heat dissipation and greater resistance to wear. When
properly processed, the PTFE resin in Teﬂon™ PTFE DISP 35
exhibits the superior properties typical of the ﬂuoroplastic
resin: retention of properties after service at 260 °C(500 °F) and useful properties at –240 °C (–400 °F).

Before processing any fluoroplastics, read the Material Safety
Data Sheet, available upon request from our Customer ServiceGroup at (844) 773-CHEM/2436 in the U.S. or (302) 773-1000
outside of the U.S. Also read the detailed information in thelatest edition of the “Guide to the Safe Handling of Fluoropolymer
Resins,” published by the Fluoropolymers Division of TheSociety of the Plastics Industry (www.fluoropolymers.org) or byPlasticsEurope (www.plasticseurope.org).

™

Teﬂon™ PTFE DISP 35 aqueous dispersion provides:• Ability for co-coagulation• Inertness to nearly all industrial chemicals and solvents• Stability at high temperatures• Excellent dielectric properties• Lowest coefficient of friction of any solid material• Non-stick characteristics

Typical Applications
Teﬂon™ PTFE DISP 35 is used in the preparation of blends
for coating of high performance bearings and seals. Teﬂon™
PTFE DISP 35 can also be co-coagulated with specialingredients to be formed into specific end-uses, such as fuelcell electrodes.

ProcessingCompositions of Teﬂon™ PTFE DISP 35 resins are reinforced
with inorganic particles, such as graphite and powdered
metals, by using various co-coagulation processes. Co-­
coagulation is accomplished by chemical addition ormechanical agitation. The viscosity and wetting power of thedispersion can be increased by adding wetting agents, suchas anionic or nonionic dispersants.

Storage and HandlingTeﬂon™ PTFE DISP 35 must be properly stored to maximize
the stability of the dispersion. The PTFE particles will settle on
prolonged standing and/or on prolonged heating—temperatures
above 40 °C (104 °F) should be avoided. The dispersion must
be protected from freezing, which will cause irreversible settling.
The optimum storage temperature range is 7–24 °C (45–75 °F).
If dispersions are to be stored for extended periods, lowertemperature storage is desirable. For optimal performance,
Teﬂon™ PTFE DISP 35 should be gently mixed or rolled monthly
and prior to use.
Ammonium hydroxide is used by Chemours to set the pH to
9.5–11.0 at the time of shipment. High ambient temperatures candeplete the ammonium hydroxide level and reduce pH. Declining
pH eventually favors bacterial growth, which causes odor andscum. The pH of opened containers should be measured andmaintained between 9.5 and 11.0.
High-speed stirring, pumping, or any other violent agitationmust be avoided to minimize sheared particles, coagulation, andfoaming. Ideally, the dispersion should be conveyed by gravity
from storage to processing stations.
Storage and handling areas should be clean. Keep dispersion
drums closed and clean to avoid both contamination andcoagulation by drying at the liquid surface. High processing
temperatures will cause even very small foreign particles tobecome visible and/or make defects in ﬁnished products. Goodhousekeeping and careful handling are essential.

Fluoroplastic Dispersion

Teflon™ PTFE DISP 35

Packaging
containers. Contact the local Chemours sales ofﬁce for
package sizes available in your speciﬁc geographic area.

Teﬂon™ PTFE DISP 35 is packaged in 30-L (8-gal)
non-returnable drums and 1000-L (264-gal) recyclable

Typical Property Data for Teflon™ PTFE DISP 35 Fluoroplastic Dispersion*
Property

Unit

Typical Value

Solids Content (% PTFE by weight)

ASTM D4441

Test Method
ISO 12086%35Density of Dispersion (at 35% solids)

ASTM D4441

ISO 8962

g/cm

Surfactant Based on PTFE Solids

ASTM D4441

ISO 12086%2.2

Chemours

μm

0.245

MPa·s

25

Dispersion Particle Size, average diameter
pH of Dispersion

ASTM E70ISO 1148

Brookfield Viscosity (at 25 °C [77 °F])

ASTM D2196

ISO 2555

31.246

10Teflon™ PTFE DISP 35 meets the requirements of ASTM D4441-15, Type I, Grade 2, Class A.
*Typical properties are not suitable for specification purposes.

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 or resell Chemours materials in medical applications involving implantation in the human body or contact with internal bodily fluids or tissues unless agreed to by Seller in a writtenagreement 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 UnitedStates. 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 useof 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 arecommendation 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© 2020 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: K-24267
C-10150 (3/20)