Anyone know of a source for a safety window/barrier for fiber? Unlike co2, acrylic won't stop the fiber beam. I have found a few sources but at several hundred for a 12" x 24" piece, I'm going to have to either find another source or another option. Alternatively, does opaque acrylic stop the fiber beam? I would prefer to see it working behind the barrier, but I'm ok with blocking it completely if it meant the difference between $20/$30 and $300 or more.

Thanks for any help!