[pure-silver] Re: phosphorescent paint
- From: Jordan Wosnick <jwosnick@xxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Wed, 6 May 2009 10:07:54 -0400
Coming to this thread a bit late, but...
Glow-in-the-dark materials are almost always based on zinc sulfides or on
alkaline earth silicates containing small amounts of lanthanides (usually
europium). They are always "pigments" rather than dyes -- the
phosphorescence comes from the crystal structure.
It sounds like Harry's dried-up paint was originally a water-based latex
suspension with phosphorescent pigment in it. If it had any xylene in it, it
would have really smelled strong. It's probably just easiest to buy a new
jar of paint or of tape, as per Jim's comments.
As for xylene vs. xylol -- what we in the English-speaking world call
benzene, toluene and xylene, the German-speaking world calls benzol, toluol
and xylol. This could be the source of the confusion.
On Mon, Apr 27, 2009 at 9:55 PM, Jim Brick <jim@xxxxxxxxx> wrote:
> I have a roll of glow tape. I cut small pieces and stuck them on my light
> switches and drawer pulls in my darkroom. The glow lasts for a very long
> time. I don't know where I got it, but I sure like it as it is easily
> removed and... it hasn't dried up in 20 years - it's still sticky.
>
> :-)
>
> Jim
>
>
>
> On Apr 26, 2009, at 8:23 AM, harry kalish wrote:
>
> Does anyone know what the solvent could be for the common phosphorescent
>> paint that is for sold darkroom applications? I have a small jar of it
>> that
>> has dried into a solid mass, and would like to refresh it into a useful
>> state.
>> Thanks,
>> Harry.
>>
>>
>>
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--
Jordan Wosnick
jwosnick@xxxxxxxxx
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