\ \ \ Fluoroplast-4

Fluoroplast-4

luoroplast-4 GOST 10007-80
Fluoroplast-4PN-90 TU 2213-021-13693708-2005
Fluoroplast-4PN-40 TU 2213-021-13693708-2005
Fluoroplast-4PN-20 TU 2213-021-13693708-2005

(-CF2-CF2-)n

Analogs: Teflon 7, Fluon G 163, 190, Algoflon F, Hostaflon TF 1702, Polyflon M 12, 14

It is an easily-lumping white powder with no visible inclusions.
Depending average particles size several grades of PTFE are produced:

Property
Grade
F-4 (S, P, PN, O, T)
F-4PN-90
F-4PN-40
F-4PN-20
Appearance
Easily -lumping white powder with no visible inclusions
Moisture content, %, max
0,02
0,02
0,02
0,02
Density, g/cm3, max
2,18-2,21 (depending on grade)
2,19
2,19
2,19
Tensile strength of unhardened specimen, MPa (kgf/cm2), min
26 (260) – 15 (150)
(depending on grade)
25 (255)
25 (255)
25 (255)
Elongation at break unhardened specimen, %, min
350 – 150
(depending on grade)
350
350
350
Dielectric strength, kV/mm, min
50 – 60
(depending on grade)
-
60
60
Average particles size, µm
100-180
46-135
21-45
6-20