I moved into a place with one very hazy window screen that is difficult to see through.
I have tried scrubbing it with a brush with soapy water and blasting it with the hose. But I cannot get rid of the hard material buildup. I even tried dipping a brush in CLR and scrubbing the screen.
When I Google how to clean a window screen, I just run across people telling me to do what I already tried. But I think the people touting these methods simply have screens with dirt in them.
This doesn't seem like simple dirt buildup. I enclosed a close up photo of what it looks like.
I bet if I poked all of the holes individually with a toothpick I could clean it, but that would take eons. Any advice? Thanks.
This is so niche I love it. Thank you for sharing this little fact.
Edit: and there seems to be different colors on the screen, making me think your theory is quite possible.
The different colors seem to just be image compression artifact. The screen is diffusely coated by a white and semitranslucent material that seems to have a similar consistency and appearance to dried glue (I was able to pick some small hunks off after viciously rending it with tweezers lol)