Engineering Challenge: Will it Fade?

How does prolonged exposure to intense UV light impact 3D-printed plastics? Will they fade?
In this video, we test samples manufactured using various additive processes, including FDM, SLS, SLA, PolyJet, DLS, and LSPc, to determine their UV resistance.
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[@herlead]

I would love to see before/after notched toughness testing

[@AndrewSink]

Clever idea for a video!

[@truthwisdom]

Great experiment!

[@Garuda3d]

Dyed materials (SLA, MJF) - Faded easily
FDM - Darker the color, more it survived
Lighter the color, more yellowish
Overall:
Light materials get yellowish over time
Clear materials tend to become ambery over time
White:
ASA less faded
ABS little bit yellowish
Resin parts fades more than FDM & SLS
ULTEM Showed little fading only
*Summary:*
Prefer darker color for longer time
Prefer paint versus dye
Hope we can expect a video on the strength with UV Exposure :)

[@KevinDixon]

Pump the Stock!

[@ByGraceIGo]

Very cool!