Camparison GRP profile type MRR - type UD

	GRP profile type MR Mats/roving-reinforced		GRP profile type UD Roving reinforced
	Z	X	Z
Tensile strength	250–450 MPa	20–60 MPa	900 MPa
Bending strength	250–450 MPa	20–60 MPa	900 MPa
Elastic modulus (tensile strength)	25,000 MPa	9,000 MPa	40,000 MPa
Elastic modulus (bending)	25,000 MPa	9,000 MPa	40,000 MPa
Elongation at break	1.0–1.8%		2%
Compression resistance	150–300 MPa	30–60 MPa	450 MPa
Pressure module	10,000 MPa	4,000 MPa	30,000 MPa MPa
Density	2.0 kg/dm³		2.1 kg/dm³
IZOD impact strength test	90–120 kJ/m²		120 kJ/m²
Barcol hardness	> 40		> 50

Characteristic values applicable to all types

Interlaminar shear strength	25 - 35 MPa
Specific volume resistivity	10^10 - 10^15 Ohm * cm
Surface resistance	10^10 - 10^15 Ohm
Dielectric strength	5 - 10 kV/mm
Tracking resistance CTI	KA 3c / KB 500 / KC 600
Dielectric constant	< 5
Lin. Coefficient of thermal expansion	12 x 10 -61/K
Thermal conductivity	0,2 - 0,6 W/m*K
Spec. heat capacity	1,0 - 1,2 kJ/kg*K
Continuous operating temperature	-100°C to +155°C (180°C)
Water absorption	< 0,15%
Dimensional stability n. Martens	200°C
Ember resistance	Level 2b
Fire behaviour	B2, UL94 V1, UL94 V0, DIN 5510 S4 SR2 ST2, ASTM E84 < 25, ASTM D635

Application limits

	Short-term behaviour		Long-term behaviour
Type MR	Z	X	Z	X
Bending stress	135 MPa	20 MPa	70 MPa	15 MPa
Tensile stress	135 MPa	20 MPa	70 MPa	15 MPa
Compressive stress	135 MPa	25 MPa	70 MPa	20 MPa
Shear stress Z=X	25.000 MPa		8 MPa