FEP Dispersion

Get to know Everflon™ FEP Dispersion

Everflon™ Fluoroplastic Dispersion FEP D50 is a transparent, water-based fluorothermoplastic dispersion. Everflon™ fluoroplastic FEP D50 offers very good non-stick properties, as well as a broad operating temperature range for use in demanding applications. It can be formulated with fluoroplastic dispersions, including PTFE and PFA, a well as a variety of fillers and pigments.

Related Products

Everflon™ PFA Dispersion
Everflon™ FEP Dispersion
Everflon™ PTFE Dispersion

Why is Everflon™ FEP Dispersion

• Inertness to nearly all industrial chemicals and solvents • Stability at high temperatures • Excellent dielectric properties • Excellent weatherability
Everflon™ Fluoroplastic Dispersion FEP D50 has an average size of around 200 nm and the viscosity is stable over a wide temperature range, which makes the product easy to process and suitable for use in demanding applications. In addition, the dispersion can be mixed with fillers or pigments for use in coating formulations. Everflon™ Fluoroplastic Dispersion FEP D50 can improve substrate adhesion and can increase the corrosion protection and gloss of the coating. Other notable features include broad chemical resistance, high shear stability, low settling tendency and weldable surface.


Data List

	Melt Point ASTM D2116	Melt Flow Index ASTM D2116
	260 °C	8~12 g/10min 5kg
	Particle Size ASTM D4441	Solid Content ASTM D4441
	0.25um	50%
	PH of Dispersion ASTM D4441	Brookfield Viscosity ASTM D4441
		15~30 Mpa.s
	9~10

Typical Applications

Everflon™ Fluoroplastic Dispersion FEP D50 is mainly used to formulate non-stick coatings for manufacturing cookware and baking tins. The dispersion is used pure or as an additive mixed with other fluoroplastic dispersion formulations. To increase substrate adhesion, the use of suitable primer systems is recommended. For coating metal surfaces, various techniques such as spray coating, roller coating and silk-screen coating can be employed. The formulations have to be adjusted for each technique.


Packaging

	Everflon™ FEP Dispersion is packaged in 30L PE drum with 25kg (55lb) content and 1000L IBC drum with 1250kg (2750lb) content.

Processing Guide

Conventional dip or flow techniques can be used for coating or impregnating high temperature fabrics, fibers, and other products with Everflon™ FEP D50. FEP resin coating on woven fabrics made of high-temperature resistant fibers, can be made by dip coating. Successive passes may be necessary to build the desired thickness to produce a smooth, crack-free coating. 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]), and then heated above the crystalline melting point of the resin particles (approximately 265 °C [509 °F]). If the Everflon™ FEP D50 is being used as a top coat over a PTFE-coated fabric or other parts, the coating must be heated to melt the PTFE (approximately 337 °C [639 °F]) to maximize adhesion.

Other solid or liquid ingredients can be added to Everflon™ FEP D50 to provide specific processing or finished product behavior.

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.

Storage and Handling

Ammonium hydroxide is used by Everflon™ to set the pH to 9.5–11.0 at the time of shipment. High ambient temperatures can deplete the ammonium hydroxide level and reduce pH.

Declining pH eventually favors bacterial growth, which causes odor and scum. The pH of opened containers should be measured and maintained between 9.5 and 11.0.

High-speed stirring, pumping, or any other violent agitation must be avoided to minimize sheared particles, coagulation, and foaming. Ideally, the dispersion should be conveyed by gravity from storage to processing stations.

Everflon™ FEP D50 must be properly stored to maximize the stability of the dispersion. The FEP 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, lower-temperature storage is desirable.

For optimal performance, Everflon™ FEP D50 should be gently mixed or rolled monthly and prior to use.

Storage and handling areas should be clean.Keep dispersiondrums closed and clean to avoid both contamination and coagulation by drying at the liquid surface. High processing temperatures will cause even very small foreign particles to become visible and/or to make defects in finished products.Good housekeeping and careful handling are essential.


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