European source for gitd filament containing strontium aluminate?
 
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European source for gitd filament containing strontium aluminate?  

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hhhh80
(@hhhh80)
Active Member
European source for gitd filament containing strontium aluminate?

I'm looking for glow in the dark pla preferebly from Europoan source, containing strontium aluminate as this gives the best glow.

There seems to be no mention about the chemical used in the specs sheets or MSDS's

Thanks!

 

 

Respondido : 09/03/2021 8:09 pm
Dan Rogers
(@dan-rogers)
Noble Member
RE: European source for gitd filament containing strontium aluminate?

I hear the theme song from the American television show "Jeopardy"....  lightly in the background

Respondido : 11/03/2021 1:54 am
hhhh80
(@hhhh80)
Active Member
Topic starter answered:
RE: European source for gitd filament containing strontium aluminate?

Care to elaborate a little more Dan?

"There are two chemicals used to make filament glow. ZnS and strontium aluminate. Both are abrasive, ZnS is cheaper and doesn't glow as brightly or as long. if the glow doesn't knock your socks off, it is probably ZnS."

" ...  Most companies don't say what they are using. Here's one that actually specifies that they use the better strontium aluminate: https://www.toybuilderlabs.com/collections/1-75mm-filament/products/1-75mm-prototype-supply-glow-in-the-dark-pla-plastic-filament

https://www.reddit.com/r/3Dprinting/comments/6g0jdx/glow_in_the_dark_pla_does_it_just_not_glow_well/

Strontium in the name does not mean anything radio active, even it me seems like it.

"For many phosphorescence-based purposes, strontium aluminate is a vastly superior phosphor to its predecessor, copper-activated zinc sulfide, being about 10 times brighter and 10 times longer glowing. It is frequently used in glow in the dark toys, where it displaces the cheaper but less efficient Cu:ZnS. However, the material has high hardness, causing abrasion to the machinery used in processing it; manufacturers frequently coat the particles with a suitable lubricant when adding them to a plastic. "

"Strontium aluminate doped with europium is non toxic. Strontium aluminate phosphors are harmless as defined by the Laws of Chemical Substances. Our product specifically was deigned harmless under the OSHA (Occupational Safetyand Health Administration) Hazard Communication Standard 29 CFR 1900.1200[4]."

https://www.coregravel.ca/site/assets/files/1297/core_glow_chemistry.pdf

Respondido : 11/03/2021 7:48 am
hhhh80
(@hhhh80)
Active Member
Topic starter answered:
RE: European source for gitd filament containing strontium aluminate?

If anyone is interested, dasfilament is made with strontium aluminate, confirmed by the company.

https://www.dasfilament.de/filament-spools/pla-1-75-mm/122/pla-filament-1-75-mm-glow-gruen-v2?number=F10135

 

Respondido : 09/04/2021 3:39 pm
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