Fluoroplastic PTFE FINE POWDER

Get to Know PTFE F100

Everflon™ PTFE F100 is a polytetrafluoroeth-ylene fine powder resin used primarily for paste extrusion. Everflon™ PTFE F100 offers the excellent combination of properties typical of Everflon™ fluoroplastic resins:

• Chemical inertness to nearly all industrial chemicals and solvents

• Superior in-use thermal stability (low thermal instability index)

• Exceptional dielectric properties, stable with frequency and temperature

• Toughness and flexibility

• Low coefficient of friction

• Non-stick characteristics

• Negligible moisture absorption

• Excellent weather resistance

• Service temperature up to 260 °C (500 °F)

• Useful properties at –240 °C (–400 °F)

• Moderate stiffness and high ultimate elonga-tion

Everflon™ PTFE F100 is designed for processing at low to medium reduction ratios of 10:1 to 300:1. It is designed to facilitate the production of high-quality, low-density tape and beading.

Typical Applications

Everflon™ PTFE F100 is widely used for conformable, high performance sealing materials and as tape for wire and cable insulation.

Processing Guide

Everflon™ PTFE F is extruded using a liquid processing aid such as naphtha. In the paste extrusion process, the powder is mixed with a lubricant aid and then compressed into a cylindrical preform slug under light pressure (1.5–2.0 MPa [220–290 psi]). The preform slug is placed in the cylinder of a paste extruder, where the composition is forced under high pressure through a finishing die to produce beading, tubing, or wire coatings.

After extrusion, the product is a low-density, but coherent, fibrous structure. After removal of the lubricant by heating within the range of 100–300 °C (212–572 °F), the extrudate can be either sintered above its melting point of around 345 °C (653 °F) to produce a void-free PTFE article or calendered and stretched to produce unsintered or semisintered articles.

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.

Property	Test Method	Unit	Typical Value
Particle Size	ASTM D4895	μm	500
Extrusion Pressure at RR = 1500:1	ASTM D4895	Mpa	8
Thermal Instability Index	ASTM D4895		<50
Melting Point	ASTM D4895	°C	327