I'm building an all-plexiglass dark box for doing public demonstrations of tintypes and ambrotypes. Anyone have knowledge or thoughts as to whether this Amber plexi would be safe in average room light, or should I go with a darker red (harder to see through).
https://www.eplastics.com/ACRY24220-250PM48X96
"2422 amber plexiglass is 100% effective at blocking ultraviolet wavelengths. It cuts off light at the 540 wavelength and works great for UV curing."
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