I am pretty sure it can be washed out as it looks like dried dirt/mud splatters but I am appalled someone packaged this and sent it to me with even a little note. If I could upload a picture I would; I don't even understand how you would get mud splatter on a screen that has been inside a warehouse. I have ordered a tone of screens from Ryonet, in fact, it is the only place I order my supplies unless I am in a crunch and need something within a day or two, so I know they normally don't arrive dirty but it is just irritating that someone packaged this and thought it was ok or didn't pick up a clean one instead. I may not be so angry if a note would have been included or an email sent to acknowledge the fact they knew it was dirty and to confirm it will wash out no problem… Oh and yes this is a supposedly new screen.
The first set of screens I ordered contained a dirty screen, in the heat of the moment I left a not so favorable review. Ryonet reached out to me to let me know they were not aware I was sent a dirty screen but were looking into the situation, as they do not approve of such actions, and sent me replacement screens before even hearing from me again. I use these screens for water-based reflective ink and they work like a dream. Thank you Ryonet for going above and beyond in customer relations. This is why I continue to order from you instead of local suppliers, in my area, where I could pick up the product same day (in person); you have quality products and outstanding customer service.
So sorry to hear about the dirty screen. I have connected with our support team and I will have them reach out to you in regards to this matter and help get it fixed.
Have a great day!