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 |
|
lengthwise |
crosswise |
lengthwise |
| tensile strength |
250 MPa |
30-80 MPa |
1000 MPa |
| flexural trength |
250 MPa |
30-80 MPa |
1000 MPa |
| E-Modulus (tensile) |
23000 MPa |
8000 MPa |
40000 MPa |
| E-Modulus (flexural) |
25000 MPa |
9000 Mpa |
45000 MPa |
| elongation |
1,0 - 1,8% |
2% |
| compressive strength |
450 MPa |
90 MPa |
450 MPa |
| compressive modulus |
1000 MPa |
4000 MPa |
30000 MPa |
| density |
1,9 kg/dm³ |
2,0 kg/dm³ |
| impact strength IZOD |
300 kJ/m² |
300 J/m² |
| barcol hardnes |
>40 |
>50 |
| values for both types |
| Interlaminar shearstrength |
70 MPa |
| specific insulation resistance |
10^10-10^15 Ohm*cm |
| surface resistance |
10^10-10^15 Ohm |
| dielectric strength |
5-10 kV/mm |
| tracking index CTI |
KA 3c / KB 500 / KC 600 |
| dielectric constant |
<5 |
| coefficient of thermal expansion |
12*10-6 1/K |
| thermal conductivity |
0,2 - 0,6 W/m*K |
| specific heat capacity |
1,0 - 1,2 kJ/kg*K |
| max. continous temperature |
-100 bis +155 (180)°C |
| water absorption |
0,15% |
| temperature deflection under load (Martens) |
200°C |
| incandescence resistance |
Stufe 2b |
| fire resistance |
B2, UL94 V1, UL94 V0, DIN 5510 S4 SR2 ST2, ASTM E84 < 25, ASTM D635 |
| short and longterm application limits |
|
shortterm behaviour |
longterm behaviour |
| type MR |
lw |
cw |
lw |
cw |
| bending strength |
135 MPa |
50 MPa |
70 MPa |
50MPa |
| tensile strength |
135 MPa |
25 MPa |
70 MPa |
25 MPa |
| compression strength |
135 MPa |
50 MPa |
70 MPa |
50 MPa |
| shear strength lw=cw |
17 MPa |
8 MPa |
