This is good, cheap glow tape-Mark flashlights to find in the dark

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wle
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This is good, cheap glow tape-Mark flashlights to find in the dark

https://www.aliexpress.com/item/Free-Shipping-One-Roll-10M-Luminous-Tape...

shipping was SLOW – it came from estonia, of all places for aliexpress to ship from

1/3 the cost of amazon

it glows all night, if your eyes adjust, you can see it forever [background radiation gives it enough charge]

wle

"You never have the wind with you - it's either against you, or you're having a good day."
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Edited by: wle on 02/18/2019 - 20:58
Spartan
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Do you know what’s it made of?

You don’t want to find out there is tritium on that tape. Or some dangerous substance.

Moses came from the mountaintop carrying a tablet. The Words were....WITH GREAT LUMENS COMES GREAT REPONSIBILITY.

Lightbringer
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wie wrote:
it glows all night, if your eyes adjust, you can see it forever [background radiation gives it enough charge]

Uhhh, where? Fukoshima?

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Lightbringer
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Well, I do like that it has avirulent insipidity. I was worried there for a minute. I might just get some…

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DavidEF
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Yeah, this is a bit worrysome, if you think about it:

Quote:
Natural glow in the dark, no need of power energy

The Cycle of Goodness: “No one prospers without rendering benefit to others”
- The YKK Philosophy

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Does not sound very safe….
There’s a reason tritium is sold inside glass vials and has shipping restrictions.

DavidEF
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Well, the listing claims it contains no toxic or radioactive ingredients.

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- The YKK Philosophy

DavidEF
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Lightbringer wrote:
Well, I do like that it has avirulent insipidity. I was worried there for a minute. I might just get some…

Seriously, does anybody even know what avirulent insipidity means? Silly

The Cycle of Goodness: “No one prospers without rendering benefit to others”
- The YKK Philosophy

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DavidEF wrote:
Well, the listing claims it contains no toxic or radioactive ingredients.

I’ve read it on the internet, so it must be true. Smile
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DavidEF wrote:
Lightbringer wrote:
Well, I do like that it has avirulent insipidity. I was worried there for a minute. I might just get some…

Seriously, does anybody even know what avirulent insipidity means? Silly

Pfft. It’s the opposite of virulent sipidity, of course.

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Sure it’s not from Chernobyl?

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DavidEF wrote:
Well, the listing claims it contains no toxic or radioactive ingredients.

Because Estonia is known for consumer protection and product testing. Silly

At best, it’s phosphors and normally, this stuff is encased in plastic or mixed with clear lacquer to be painted on such thing as watches.

As long as the OP knows what he’s bought and trusts the product. Or not….

Moses came from the mountaintop carrying a tablet. The Words were....WITH GREAT LUMENS COMES GREAT REPONSIBILITY.

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I’m thinking it’s only a slow-decay phosphor if they claim a half-life of 24hrs. Ie, it won’t glow brightly and also fade quickly, but glow dimly but for a much longer time.

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at this price you can’t expect tritium

Forgot my pen

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mrheosuper wrote:
at this price you can’t expect tritium

Lightbringer wrote:
I’m thinking it’s only a slow-decay phosphor if they claim a half-life of 24hrs. Ie, it won’t glow brightly and also fade quickly, but glow dimly but for a much longer time.

Well then the claims about it not needing any kind of power or energy to glow are false.
Because only tritium does that.
zipelgas
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I think I have to order some. Just to see where does it ship from? Wink

Overkill is just about enough!

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zipelgas wrote:
I think I have to order some. Just to see where does it ship from? Wink
Great idea!! If you do, please keep us posted. Who knows, it might be from very close to you since your in Estonia. Wink

If your seeing an unexplained glow in the sky at night….. this may explain it. Big Smile

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

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Years ago NPR had a story about US Radium in New Jersey, I found a similar story in Wikipedia
Radium Girls
How would you think something like a watch dial would have such an impact on someones life.

Paul-

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I bought a tape with the same pictures and similar price. It doesn’t glow forever but glows for long, I haven’t determined duration.

teacher
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Paul321 wrote:
Years ago NPR had a story about US Radium in New Jersey, I found a similar story in Wikipedia
Radium Girls
How would you think something like a watch dial would have such an impact on someones life.
Wow… that’s a sad story & a pitiful commentary on their employer. Sad
Thanks for sharing, I had never heard of this.

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

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I knew about the Radium Girls, anybody who doesn’t, and thinks your job sucks should click that link.

wle
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ok i am OP

here is what i know
it is cheap – it cannot be tritium

it does glow all night – maybe it would eventually fade but i have not tried to keep any in the dark for a week to see what it does

when i said it does not need light charging, that was for 12 hours

when i was a kid though, i had an old big ben westclox alarm clock, and you could see sparkles on its glowing hands, if you looked very closely
with good kid eyesight
i was told, maybe this is wrong, that those were gamma rays hitting the phosphor stuff, making it sparkle
i don;t really know
maybe the thing had some radium in the paint, this was the 60s, and it was really radium decay

i assumed when the new tape lasted all night, that it was this gamma hitting phenomenon
now i don;t really know

but i assume radium is also out, due to expense and legalities

maybe i will put some in a dark box for a week and see if that is still visible at night in the complete dark like the 12 hour glow

i will probably find that it does gradually fade out, it just takes more than 12 hours,
there are no gamma ray sparkles, and what i saw before may have been radium paint,

wle

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teacher wrote:
Paul321 wrote:
Years ago NPR had a story about US Radium in New Jersey, I found a similar story in Wikipedia Radium Girls How would you think something like a watch dial would have such an impact on someones life.
Wow… that’s a sad story & a pitiful commentary on their employer. Sad Thanks for sharing, I had never heard of this.

The show I saw, not sure if it was the same one, was really sad. It showed pictures of the girls faces. The ones that survived were a mess.

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/\… That is horrible….. Sad

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

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wle
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Plotthound wrote:
teacher wrote:
Paul321 wrote:
Years ago NPR had a story about US Radium in New Jersey, I found a similar story in Wikipedia Radium Girls How would you think something like a watch dial would have such an impact on someones life.
Wow… that’s a sad story & a pitiful commentary on their employer. Sad Thanks for sharing, I had never heard of this.

The show I saw, not sure if it was the same one, was really sad. It showed pictures of the girls faces. The ones that survived were a mess.

Yes I read the book – it said some of the workers actually glowed in the dark – you could see their skeletons through their skin.

This was before they seemed sick.
The radium glow was thought to be healthy.
There were people who knew that was a lie, the bosses, but they of course didn;t say it.
They at one point told the workers not to ‘point the brushes’ with their lips, and gave them rubber doohickeys to do that with.
But the workers didn’t like those and went back to lips.
The bosses knew all this and didn’t enforce it, since that made the work faster.

The book is just called “Radium Girls”. It’s fairly recent. Great book, terrible story.

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There is a movie that came out last year. Not sure if it’s available on any of the streaming services or otherwise.

https://www.imdb.com/title/tt6317180

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anybody have a gieger-counter meter to test this tape for any extreme nuclear radiation! its made from the elephant’s foot probably.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

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Quote:
you can see it forever

Forever? What does it mean?
Comments above says it must be around 12 hours, but not forever.

Quote:
[background radiation gives it enough charge]

This sounds dangerous, but I’m quite interested.

So what’s that exactly?

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Emiriya, welcome to BLF! I’m curious how you found us. Have you been lurking for a while? Surely this thread didn’t pull you in! Silly

The tape is probably just glow-in-the-dark tape. The listing has a lot of dubious claims, some of which seem to contradict each other. But, in the end, it’s probably the same stuff we’re used to seeing. You light it up with some other light source, and it re-radiates that light for some time afterward.

The Cycle of Goodness: “No one prospers without rendering benefit to others”
- The YKK Philosophy

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DavidEF wrote:
Yeah, this is a bit worrysome, if you think about it:
Quote:
Natural glow in the dark, no need of power energy

Language. Often an issue with these listings. They mean “no need of power energy” in that you don’t need electrified light to do the job of the glow tape. Not that the tape doesn’t need light to start glowing! That would be ridiculous.

Btw, 10mm width is a bit narrow. Some people overlook that, only paying attention to the length of the roll. 19mm or wider is better, to cover most applications (for a contiguous piece you trim, versus assembling multiple strip pieces).

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For those interested, here is a glow-in-the-dark powder that is capable of being charged up by body heat. It is claimed to be the world’s glowiest glow pigment.

Because I know this stuff exists, as well as some other products I’ve seen, I don’t have any trouble believing the glow tape can show some amount of light all night long to someone with dark-adjusted eyes. Wink

The Cycle of Goodness: “No one prospers without rendering benefit to others”
- The YKK Philosophy

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