G-10 under black light

CUTS LIKE A KRIS

CUTS LIKE A KRIS

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Sep 28, 2005
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I have a spyderco Native with G10 handles that appears green under a black light!! None of my other G10 knives do this and I was wondering if anybody else has noticed this or has an answer as to why this happens? My guess is that it has something to do with the layout of the fibers in the material but I am a biologist not physisist or engineer so I need help- I am going crazy trying to figure it out:confused:
 
WadeF said:
They made a Native with G-10? I thought they were FRN?
Click to expand...

It was a forum knife, blue g-10. I was wondering if that's the thing, you're comparing black to blue g-10, or you are comparing black g-10 to black frn.
 
Ahh, the forum knife. I vaguely remember that. I didn't think I remembered Spyderco ever making a regular production Native in G-10.
 
here's what i got.

dscn33362hp.jpg


dscn33407pg.jpg



first off, i'm also intrigued about a g10 native. you're talking about the blue one?



second off, you'll have to elaborate. it just appears green, or does it glow?


the pics above are a black buck/strider 882 black G10, strider EBT black G10, and strider SNG w/ dark green G10. the SNG glows-- the other two pretty much don't do anything under UV light.



my theory on the glowing SNG is because i carry it.
likely, laundry detergent or detergent impregnated lint is caught in the G10, and the phosphorus is glowing.


anyhow. sorry about the out of focus pics.
 
It seems that colored g-10 glows - the SNG with dark green glows and the native is in blue g-10. Is this correct or am i reading it incorrectly? If not that's my theory
 
well...

my sng doesn't glow on the edges. only on the finished, knurled front surface. if it was solely colored G10 that's glowing, i'd expect all sides of the G10 to react. that's why i figured it was my laundry detergent doing it-- cause the grippy side has the most contact with my clothing than any other surface of the knife, and the porous surface seems like a good medium to trap bits of excess, powdered detergent.
 
My guess is that because G10 is basically laminated bits of glass like fiber glass that the black light is reflected from within the "woven" glass matrix. As well, I believe all Black G 10 is actually not totally black. There are blues and greens in it mixed so dark they only appear black but aren't true black.
 
We'll have to wait for more information from the topic starter. Considering he has 30 posts and joined this past September I doubt he has the forum knife. Also he isn't talking about any colored G-10. I'm thinking he's comparing all black handled knives and he's mistaken that his Native is G-10, when it's actually black FRN. Can anyone put black FRN under a black light and see what happens? :)
 
yea i put a black FRN dragonfly under and it looks slightly, slightly greenish. i'll try to take a pic but its so hard to keep the camera steady i don't have a tripod.


i have too much time on my hands though, thats for sure.
 
bah, no good.

taking a pic is pretty inconclusive, you can't really tell.

stuff looks different under different light, lets just settle on that. B)
 
oh well i took the picture already may as well post it.

dscn33433vs.jpg


its a black FRN spyderco dragonfly and the gray/blue FRN spyderco waved endura
 
UV is fun!

Most of my G-10 is inert to it. A Strider with black G-10 glowed uniformly green -- but the G-10 on it had been polished smooth. The G-10 on an old and heavily used Buck/Strider 880 glowed green and the edges of the slabs glowed a brighter green -- I think RDT is right about the fibers channeling the effect.

An old Benchmade Emerson shows a surface lint-like glowing on the otherwise inert G-10.

Zytel seems completely inert except for my Spydie Assist, where spots at the front of the handle were slightly worn, and they glowed dimly.

Some cookie crumbs on my desk glowed distinctly light orange ... slob ...
 
Wow, Striders aren't very tactcal! What if you were sneaking up to deanimate a sentry in the spproximate vicinity of a large retail shopping center, and he turned around and lit you up with his UV flashlight? Your Strider would be a dead give away! :eek:
 
The G10 on my 710HS doesn't glow or anything. The silver twill G10 on my 705-401 only reflects the slight purple that the light gives out normally.:yawn:

The blue G10 on the Passaround Dodo showed an interesting, slightly glowing blue/purple. But not anything really fluorescent.
 
When you grind the G10 you get a better idea of the coloring and the patterns that make it what it is. Or if yo've ever seen G 10 break you can see the way all the fiber is held together via the Resin making it Phenolic. Like when you buy a sheet of G10, it is smooth and flat and uniform in appearance, Polymerized. However, if you break it, grind or cut it you can see the many layers in it that is what can give G10 that micarta appearance if groud like micarta. That grainy look. But within the layers you can get a better view of the blue-ish and green-ish within the black. So being that it's glass, the black light shined through it probably bounced off the many, many thousands of pice of glass within it and bringing out the dominant color used to create it. So a sort of glowing effect takes place since the light is being reflected from within. That's my theory and I'm stickin with it:D
 
Don't worry. The glow is probably caused by some left over radioactive material from the nuclear power plant near the Spyderco factory that got accidentally dumped into the batch of G-10.

It will be fine in 40,000 years or so.
 
As one of you guessed the knife in question is not the forum knife. It has BLACK scales of G10- (not frn or any other plastic) this was not a regular model as it features G10 handle scales, abalone inserts and a CPM440V blade. It appears black in normal light but is a very bright green under black light. I found this out when the shining the light on all of my folders and this is the only one that glowed.

Thanks to everybody for their imput
 
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