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05-14-2022, 08:07 AM #1
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white ABS discoloration under LED light
I've had a lot of luck using Hatchbox PLA and ABS and tried their white ABS to use as a diffusion layer in a light box. When printed the color looks like a very nice bright white but when LEDs (also white) shine through it the ABS turns yellow. Anyone else expreience this or know of a brand of white ABS that doesn't discolor?
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05-14-2022, 04:02 PM #2
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- Jun 2014
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The change to non-white coloration is an indication that the "white" LEDs are not a true white color temperature. If you are seeing white under sunlight, you'll want to find a more daylight color temperature (>6500K) as a source illumination.
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05-14-2022, 04:32 PM #3
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05-14-2022, 05:00 PM #4
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That's unfortunate. I have a half dozen different brands and materials of white, PLA, ABS, HIPS (and ASA in a sealed box). Of the ones I just checked, the unknown brand stuff appeared to have a yellow cast to it. The HIPS is probably the whitest, only outdone by white NinjaFlex. My spools of MatterHackers Build PLA are a toss-up, uncertain how those would look, but the MatterHackers ABS is clean white. I think it's a gamble, unless you can get a sample sent to you for testing.
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05-14-2022, 05:25 PM #5
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- May 2022
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Thanks, I'll have to check out that filament brand.
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05-15-2022, 08:21 AM #6
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- Aug 2020
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- United Kingdom
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I think you provided the answer to your own problem. Filament is white because it has mixed with it a white pigment normally titanium dioxide this very white but opaque so the filament looks white by reflected light but being opaque the pigment blocks transmitted light so the only light that gets through is coloured be the filaments polymer natural colour. If you want to make a light diffuser you will need to use a transparent filament.
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05-15-2022, 10:14 PM #7
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- May 2022
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Need to design a thumb ... do cad...
10-05-2024, 02:49 AM in 3D Modeling, Design, Scanners