Properties

Material Properties

Technical data of GRP Profiles can vary according to the type of fibre reinforcement, shape and wall-thickness.

GRP profiles type MR
mat/roving reinforced
GRP profiles type UD
roving reinforced
ZXZ
tensile
strength
250 – 450 MPa20 – 60 MPa900 MPa
flexural
strength
250 – 450 MPa20 – 60 MPa900 MPa
E-Modulus
(tensile)
25.000 MPa9.000 MPa40.000 MPa
E-Modulus
(flexural)
25.000 MPa9.000 MPa40.000 MPa
elongation1,0 – 1,8 %2 %
compressive
strength
150 – 300 MPa30 – 60 MPa450 MPa
compressive
modulus
10.000 MPa4.000 MPa30.000 MPa
density2,0 kg/dm³2,1 kg/dm³
impact strength
IZOD
90 – 120 kJ/m²120 kJ/m²
Barcol hardness> 40> 50
Values for both types
interlaminar
shear strength
25 – 35 MPa
specific insulation
resistance
10^10 – 10^15 Ohm* cm
surface resistance10^10 – 10^15 Ohm
dielectric strength5 – 10 kV/mm
tracking index CTIKA 3c / KB 500 / KC 600
dielectric constant< 5
coefficient of
thermal expansion
12 x 10 -61/K
thermal conductivity0,2 – 0,6 W/m*K
specific heat capacity1,0 – 1,2 kJ/kg*K
max. continous
temperature
-100°C to +155°C (180°C)
water absorption< 0,15%
temperature deflection
under load (Martens)
200°C
incandescence resistanceLevel 2b
fire resistanceB2, UL94 V1, UL94 V0, DIN 5510 S4 SR2 ST2, ASTM E84 < 25, ASTM D635
Short and longterm application limits
short-term behaviourlong-term behaviour
Type MRZXZX
bending strength135 MPa20 MPa70 MPa15 MPa
tensile strength135 MPa20 MPa70 MPa15 MPa
compression strength135 MPa25 MPa70 MPa20 MPa
shear strength Z=X17 MPa 8 MPa

E-Modulus

Specific tensile strength

Density

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