Virgin Molding – F4 PN

Fluoroplast-4 grade PN (F-4PN) is fully fluorinated resin which has an excellent chemical stability, electrical and mechanical properties. The material is a granular powder product designed for usage from small to medium billet compression molding, which is well suited to thin skived film applications requiring excellent physical and electrical properties. Halopolymer PTFE granular powders PN is product of suspension polymerization of TFE subjected to grinding.

Typical applications

General purpose: pipes, tubes, spacers, O-rings, laboratory and chemical equipment. Suitable for skiving sheets and films.

Availability

30 kg cardbox with 2 x 15  kg polyethylene inserts.

28 Kg  cardbox with 2 x 14 kg polyethylene inserts.

TYPICAL PROPERTIES OF PTFE GRADES  F4- PN

 

PROPERTIES	UNITS	TYPICAL VALUE	TEST METHOD
Appearance	–	White, easily lumping powder, without visible inclusions	Visual (internal method1)
Particle size, average diameter (d50)	μm	150±40	Laser-diffraction analyses (internal method1)
Water content, max	% wt	0,02	internal method1
Bulk density	g/l	560±40	internal method1
Density (SSG)	g/sm3	2,14 – 2,17	internal method1
Tensile strength at break, min	MPa	26	internal method1
Elongation at break, min	%	350	internal method1
Dielectric strength (0.100+0.005 mm thickness) at constant voltage, min	kV/mm	60	internal method1
Mould shrinkage	%	1,8-2,8	internal method1
Melting point	˚C	327±5	ASTM D4894

Note:

1) The value of the parameters is per GOST, because manufactured products are analyzed according to GOST (Russian State Standard). The sample preparation procedure has a difference with the ASTM. The standard of the company is GOST 10007-80 (Specific molding pressure is 29.4 MPa with dwell time of 1 minute, temperature of heat treatment of plates for the samples is 380-390 °C, and time of heat treatment is 13 hours).

 

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