| Characteristic/Application
|
Powergrid®
molded grating |
Powergrid®
pultruded grating |
| Chemical resistance |
Excellent |
Good |
| Bi-direction strength |
Excellent |
Not recommended |
| Uni-direction strength |
Very Good |
Excellent |
| Impact resistance |
Excellent |
Average |
| Weight saving versus steel |
Excellent |
Excellent |
| Open area(air flow, light penetration)
|
Excellent(70%-80%) |
Good(40%-60%) |
| Panel size available |
Excellent |
Excellent |
| Pipe penetrations |
Excellent |
Average |
| Safety |
Excellent |
Excellent |