| Photosytentic Active Radiation (PAR) Light Transmission is affected by chemical additives to Polyethylene | |
| Chemical Additive | % PAR Transmitted |
| UV-stabilized | 87% PAR |
| 2- layers of UV-stabilized | 76% PAR |
| IR-absorbing | 82% PAR |
| Anti Fog Surfactant Polyethylene | |
| Photoselectivity Polyethylene | |