FlexGuard rubber graphite

Physical properties

	Value	Unit	Test method
Specific gravity	1.6	g/cm3	DIN EN ISO 1183
Average molecular mass	–	106 g/mol
Water absorption, 24/96 h (23 °C)	<0.01	%	DIN EN ISO 62
Weather-resistance	–
Combustibility	HB	UL 94	DIN EN ISO 527-2
Food safety	no

Mechanical properties

	Value	Unit	Test method
Modulus of elasticity	>1300	MPa	DIN EN ISO 527-2
Tensile strength	N/A
Elongation at break	–	%	DIN EN ISO 527-2
Tensile strength at break	N/A
Flexural modulus	–	MPa	DIN EN ISO 178
Flexural strength	–	MPa	DIN EN ISO 178
Compressive modulus	–	MPa	EN ISO 604
Compressive strength, 1%/2%	–	MPa	EN ISO 604
Impact strength (Charpy)	–	kJ/m2	DIN EN ISO 179-1eU
Notch impact strength (Charpy)	<20	kJ/m2	DIN EN ISO 179-1eA
Notch impact strength (Izod)	–	kJ/m2	DIN EN ISO 180/2A
Toughness (ball pressure)	>57	MPa	ISO 2039-1
Toughness (Shore D)	80	Sh D	DIN EN ISO 868
Wear-resistance	~ 85	%	Sand-Slurry
Coefficient of friction (against steel)	0.12	μ

Thermal properties

	Value	Unit	Test method
Glass-transition temperature	–	°C	DIN 53765
Melting point	–	°C	DIN 53765
Operating temperature (instantaneous)	–	°C
Operating temperature (continuous)	+ 120	°C
Operating temperature (minimum)	N/A
Thermal expansion coefficient, 23–60 °C	–	10-5 K-1	DIN EN ISO 11359-1;2
Thermal expansion coefficient, 23–100 °C	<1.5	10-5 K-1	DIN EN ISO 11359-1;2
Specific heat capacity	–	J/(g×K)	ISO 22007-4:2008
Thermal conductivity	N/A

Electrical properties

	Value	Unit	Test method
Surface resistivity	107	Ω	DIN IEC 60093
Resistivity	107	Ω×cm	DIN IEC 60093
Dielectric strength	N/A
CTI value	–	V	DIN EN 60112

Optical properties

	Value	Unit	Test method
Light transmittance	–
Refractive index	–
Optical errors	–		DIN 52305/AS
Abrasion-resistance, 100 rotations with 500 g	–	% haze	ANSI Z26.1

Additional downloads

• Datasheet