Testing UV curing resin with glow pigment.
Added 2020-05-30 17:49:57 +0000 UTCFor those of you with a 3D printer you can make one of these coasters from the tight little script (with my first use of a loop) in the description of the video on YouTube.
This started off as a project to pour two part resin into recesses in a coaster, but then became a test of how well UV cured resin from eBay works when loaded with Strontium Aluminate glow in the dark pigment (also from eBay).
The primary advantage of the UV cured resin is that it lets you choose when it's going to cure as opposed to working against the clock.
Here's the UK listing I got the large bottle of resin from:-
https://www.ebay.co.uk/itm/264710014403
I think the listing may be down now, probably due to global shipping issues.
And the Chinese listing for the glow pigment, that is pretty good for the cost, although not quite as bright as a premium brand.
https://www.ebay.co.uk/itm/163915014908
Again the listing appears to be down as it was a from a while ago.
Although those listings are probably down they may be useful to find similar ones.
Comments
It could be possible to embed a circuit board into some designs with translucent resin. Maybe even a simple inductive power arrangement.
Big Clive
2020-06-02 15:39:54 +0000 UTCI tried it in the past and UVC didn't work. It had to be UVA or in the deep blue end of the spectrum.
Big Clive
2020-06-02 15:34:31 +0000 UTCHmm could you put UV leds under that stuff for non disappointing fading glow? Old school zinc maybe even..
2020-06-01 22:03:08 +0000 UTCLooks like a fun project- endless possibilities- I just need a 3d printer! I shall have to wait for Santa. :(
Mike Hughes
2020-06-01 13:02:05 +0000 UTCCool 😎 Well done Clive 👍
2020-06-01 07:49:52 +0000 UTCThe IPA is actually cleaning off the uncured layer of resin.
Drachnien
2020-05-31 17:32:18 +0000 UTCyou can avoid the stickyness by (supprisingly!) curing it under water. the water stops the Oxygen getting to the resin and that's what's inhibiting the cure.
Drachnien
2020-05-31 17:29:48 +0000 UTCOr a camera flash! Those things charge up glow in the dark things incredibly brightly, literally in the blink of an eye! Never mind that it would periodically blind you for a moment, those are just pesky details
Berkeloid
2020-05-31 11:34:17 +0000 UTCThe next logical step is to embed momentary blue/uv LEDs in the glow resin to make self charging glow in the dark coasters.
Wim
2020-05-31 03:51:25 +0000 UTCI think you might’ve answered this before but will antibacterial UVC lighting cure that resin or does it need a different wavelength?
Lostngone
2020-05-30 21:23:33 +0000 UTCAnother observation: if it is the same as 3D printing SLA resin, there seems to be some concern about its health effects. It's difficult to discover what the cause for concern actually is, but as far as I can tell, it's possible for the uncured resin to be absorbed into the skin, then after curing, provoke a persistent hypersensitivity to epoxy.
2020-05-30 20:51:57 +0000 UTC***** IMPORTANT FACT ******* Non cured resin (under the cured lawer) stays fluid and will eat pla and abs printed parts. the resin is virtually the same as the resin used in Resin 3D printing and if you join or read one of 3d resin printing groups you will find shed loads of posts asking why there 3 month old printed parts have split or even exploded while packed away for later painting/use.
2020-05-30 20:20:50 +0000 UTCOutstanding! I shall light my Clive's Energy Crystal in celebration!
Michael Thompson
2020-05-30 18:05:46 +0000 UTC
