Virgin Molding – F4 PN-90
HaloPolymer PTFE -4 grade PN90 (F-4PN90) 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-90 products 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
25 kg cardbox with 2×12,5 kg polyethylene inserts.
Platic drums can be requested
TYPICAL PROPERTIES OF PTFE F4 PN-90
| PROPERTIES | UNITS | TYPICAL VALUE | TEST METHOD |
| Appearance | – | White, easily lumping powder, without visible inclusions | Visual
(internal method1) |
| Particle size, average diameter (d50) | μm | 90±25 | Laser-diffraction analyses
(internal method1) |
| Water content, max | % wt | 0,02 | internal method1 |
| Bulk density | g/l | 560±35 | internal method1 |
| Density (SSG) | g/sm3 | 2,15 – 2,18 | internal method1 |
| Tensile strength at break, min | MPa | 29 | internal method1 |
| Elongation at break, min | % | 350 | internal method1 |
| Dielectric strength (0.100+0.005 mm thickness) at constant voltage, min | kV/mm | 80 | 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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