Acouple things to be concerned about also:
This curtain has an IP rating of 44 yet their website says the following:
The display curtain is made from special Nano material that has the attribute of waterproof, against fire, durable, against dirty and without extension, which can be applied in outdoor and indoor.
Also it's a curtain and doesn't have blow through. You mentioned this would be used outdoors, I'm assuming on a stage of some sort. That has the potential to become a sail and cause serious issues or injuries.