Clear is ideal for general non demanding applications such as non-vehicular doorways, internal partitions and noise control. For doorways used by fork trucks, pallet trucks and small vehicles a thicker grade of PVC curtain is recommended with a reinforcing buffer/rib. This helps against the stress and strain associated with these environments. For heavy duty use including articulated lorry loading and heavy industry the double ribbed Safestrip is more appropriate. Coldstore and deep freeze environments can also be catered for. Where visibility is important, curtains with orange marker strips, especially useful in low light conditions, are aid for drivers of reversing vehicles and hazardous environments.