Fluoroplastic PTFE Aqueous Dispersion

Get to Know PTFE D60

Everflon™ PTFE Dispersion D60 is a milky white aqueous PTFE dispersion stabilized with a non-ionic surfactant. It is a general-purpose product, often preferred for coating and impregnat-ing woven goods and for some coat-ing processes. It imparts properties unique to PTFE resin to porous struc-tures, as well as to base materials when used as an additive. When properly processed, the PTFE resin in Everflon™ PTFE D60 exhibits the su-perior properties typical of the fluoro-plastic resin: retention of properties after service at 260 °C (500 °F) and useful properties at –240 °C (–400 °F). Everflon™ PTFE D60 aqueous disper-sion provides:

• Inertness to nearly all industrial chemicals and solvents

• Stability at high temperatures

• Excellent dielectric properties

• Lowest coefficient of friction of any solid material

• Excellent weatherability

• Non-stick characteristics

Typical Applications

Application&Function	C	F	P
Coated woven fiber-glass fabric used in architectural, industrial, food processing, and electronics applications		●
Impregnated packing made from braided fibers for severe chemical and thermal service		●	●
Cast film for capacitor dielectrics or chemical barriers		●
Surface coatings for metallic or other high-temperature substrates
Anti-drip additive for plastics			●
Binder for battery anode or cathode materials
Formulated surface non-stick coating	●
Formulated primer not-stick coating			●

Processing Guide

Conventional dip or flow techniques can be used for coating or impregnating high temperature fabrics, fibers, and other products with Everflon™ PTFE D60. A continuous PTFE resin coating on woven fabrics made of fiber-glass, aramid fiber, or other high temperature-resistant fibers can be made by dip coating. Multiple passes may be used to build the desired thickness to produce a smooth, crack-free coating.

Everflon™ PTFE D60 is formulated to provide good rewetting on each pass. Each coating layer is usually dried to remove water (typically at 120 °C [250 °F]), baked to remove the wetting agent (typically at 270 °C [518 °F]), some-times calendered, and finally heated above the crystalline melting point of the resin particles (approximately 337 °C [639 °F]).

Products utilizing entrained PTFE resin particles only for their lubricating or hydrophobic properties are dried and baked, but not heated above the crystalline melting point of the particles. For example, rope-like products, such as shaft packings, can be made from braided yarn in a variety of cross sections. The dispersion wets internal surfaces and promotes penetration of the small PTFE particles. The unmelted particles are sheared and retained as an impregnant, even when compressed in service and exposed to steam or chemicals. Unmelted particles can also improve flexibility and flex life in woven fabrics used in hot-gas filtration applications.

The details please visit www.everflon.com or refer

Everflon™ Fluoropolymer Dispersions Application Guide.

Precaution

Equipment used to process at melt temperatures should be provided with local exhaust ventilation (LEV) to completely remove all fumes and vapors from the processing area. In addition, care should be exercised to avoid the contamination of cigarettes and other forms of smoking tobacco when using fluoroplastic resins. Before processing any fluoroplastics, read the Material Safety Data Sheet.

Data List

Property	Test Method	Unit	Typical Value
GENERAL
Particle Size	ASTM D4441	μm	0.28
Solids Content	ASTM D4441	%	60
pH of Dispersion	ASTM D4441		9
Brookfield Viscosity	ASTM D2196	Mpa.s	15~30