| Properties | Test Standard | Unit | GT500M | GT750M | GT1000M |
| colour | Black | ||||
|
geotube Circumference
|
m | 6.3 / 7.9 / 9.5 / 11 | 10 x 10 | 9 x 9 | |
| Mechanical | |||||
| Wide width tensile strength (MD) | ISO 10319 | kN/m | 100 | 130 | 200 |
| Wide width tensile strength (CD) | ISO 10319 | kN/m | 125 | 130 | 200 |
| Elongation at tensile strength (MD) | ISO 10319 | % | 12 | 10 | 12 |
| Elongation at tensile strength (CD) | ISO 10319 | % | 9 | 10 | 10 |
| CBR puncture strength | ISO 12236 | kN | 10 | 14 | 22 |
| Drop cone perforation diameter | ISO 13433 | mm | 8 | 10 | 7 |
| Abrasion resistance | ASTM D4886 | % retained | 70 | 75 | 80 |
| UV resistance (at 500 hours) | ASTM D4355 | % retained | 90 | 90 | 90 |
| Hydraulic | |||||
| Pore Size O90 | ISO 12956 | mm | 0,3 | 0,25 | 0,35 |
| Water permeability Q50 | ISO 11058 | l/m^2/s | 25 | 10 | 20 |
| Factory seam | |||||
| seam strength (CD) | ISO 10321 | kN/m | 73 | 90 | 170 |