If I'm not mistaken Keltec's use of Dupont ST8018 ("Zytel" -which is a polyamide, glass reinforced polymer) is to blame for it's "Pink" display. Specifically, the oxanilides used as a UV stabilizer. When you expose the polymer of the P3AT to your UV light it partially absorbs the UV and reflects the rest (as pink).
As a property of how the UV stabilizer works if you were to leave the UV light on the P3AT should get slightly warmer (as the oxanilide converts some of the UV to heat to keep it from destroying the polymer chains, aka "weathering").
It's really interesting that Glock Polymer-2 are hold up well in UV light. It seems that the KelTec is less efficient at dealing with UV light than the other three - albeit, in an entertaining/interesting way.
My understanding is that, if there is no visible change the UV stabilizer is 100% efficient (all UV radiation is dissipated into another form, usually heat). Intensity of the reflected 'light' would denote efficiency of the UV stabilizer. Because the Spr, Glk and S&W stayed the same 'colour' it could be said they are doing a good job of dealing with all the UV wavelengths of light as where the KelTec is only partially dealing with all the UV.
There is a possibility that when the stabilizer does its thing the UV turns partially to IR and is picked up by your camera. However, I noticed that your camera wasn't very sensitive to your IR LEDs.
At any rate - how many people can say their firearm turns pink under any condition. :P
neat, great concept.
bZberetta 1 year ago
Very interesting!
If I'm not mistaken Keltec's use of Dupont ST8018 ("Zytel" -which is a polyamide, glass reinforced polymer) is to blame for it's "Pink" display. Specifically, the oxanilides used as a UV stabilizer. When you expose the polymer of the P3AT to your UV light it partially absorbs the UV and reflects the rest (as pink).
ALAPINO 2 years ago
As a property of how the UV stabilizer works if you were to leave the UV light on the P3AT should get slightly warmer (as the oxanilide converts some of the UV to heat to keep it from destroying the polymer chains, aka "weathering").
It's really interesting that Glock Polymer-2 are hold up well in UV light. It seems that the KelTec is less efficient at dealing with UV light than the other three - albeit, in an entertaining/interesting way.
Thanks again for the vids!!!
ALAPINO 2 years ago
Cool, thanks for the info
Would a brighter light mean different reaction / colors then?
GunWebsites 2 years ago
My understanding is that, if there is no visible change the UV stabilizer is 100% efficient (all UV radiation is dissipated into another form, usually heat). Intensity of the reflected 'light' would denote efficiency of the UV stabilizer. Because the Spr, Glk and S&W stayed the same 'colour' it could be said they are doing a good job of dealing with all the UV wavelengths of light as where the KelTec is only partially dealing with all the UV.
ALAPINO 2 years ago
Also another thought -
There is a possibility that when the stabilizer does its thing the UV turns partially to IR and is picked up by your camera. However, I noticed that your camera wasn't very sensitive to your IR LEDs.
At any rate - how many people can say their firearm turns pink under any condition. :P
ALAPINO 2 years ago
LOL
GunWebsites 2 years ago
Interesting experiment.
watcher8o 2 years ago 2
thanks, I hoped it would have been more dramatic but oh well.. The Keltec turning pink is kinda funny though
GunWebsites 2 years ago