• PTFE vergine - Copertina
    20% Glass + 5% Graphite

PTFE COLORS

20% Glass + 5% Graphite
Data Sheet: F1-23

20% Glass + 5% Graphite (75% Virgin PTFE + 20% Glass Fibres + 5% Graphite)

PTFE Glass Graphite Compound preferred for parts and components requiring very good mechanical properties.

 
Property Method Units Specification
Physical   Color - - Black
Specific gravity ASTM D792 g/cm3 2,22 – 2,28
Water absorption ASTM D570 % 0,05
Flammability UL 94   V-0
Mechanical Tensile strength ASTM D4745 MPa ≥ 16
Elongation ASTM D4745 % ≥ 180
Hardness ASTM D2240 Shore D ≥ 58
Ball Hardness ASTM D785 MPa ≥ 25
Deformation under load
(140 Kg/cm2 for 24 hrs. At 23° C)
ASTM D621 % 10,5-12,5
Permanent deformation
(after 24 hrs. Relaxation at 23° C)
ASTM D621 % 5-6,5
Coefficient of static friction ASTM D1894   0,12-0,25
Coefficient of dynamic friction ASTM D1894   0,11-0,13
Wear coefficient - cm3 min 10-8
Kg m h
20-25
Thermal  Thermal conductivity ASTM C177 W/ m*K 0,34
Coefficient of linear thermal expansion
From 25 to 100 °C
ASTM D696 10-5/°C 9-12
Electrical Volume resistivity ASTM D257 Ohm*cm 1010
Surface resistivity ASTM D257 Ohm 109
 

STYLE PRODOTTI PTFE

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