3D Printed Glazing

• For 3D printed glazing to be useful, it must be UV resistant. PMMA is an option. But not easy to print.
• Polycarbonate is the best - [1]. Apply 2k Polyurethane for 15-25 year life. [2]
• But it costs $1/sf to coat 3D printed polycarbonate! Might as well cast glass panes. [3]. But that is for low quantitis, with bulk sourcing at 5 gal+ cost goes down up to 50%, [4].
• Look at this including primer cost:

[5]

• But, digging in, price goes up when the coverage is considered - the above links are bogus because the coverage is not correct. [6]. Looks like back to glass, which is free.