What generic PETG and SLA-resin look like in a UV-vis spectrometer (420nm cutoff is the resin; PETG goes down to roughly 320nm).
PETG: https://lemmy.ml/pictrs/image/b4916855-4234-47b3-8b4d-aa2aae5fc9a6.jpeg
resin: https://lemmy.ml/pictrs/image/1741bcdc-4607-4eb4-bbc6-b7e01a2d0c25.jpeg___
sidenote: 315-400nm is UVA.
![](https://kbin.cafe/media/cache/resolve/entry_thumb/97/2d/972d3ab0d5649921b7ff0093afefaa6cb12e824a10ae9defde484b4ee00b8805.jpg)
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