![Longwave UV](_derived/longwave_uv.htm_cmp_fpg-gradient07c000_vbtn.gif)
![Shortwave UV](_derived/UVShortwaveInks.asp_cmp_fpg-gradient07c000_vbtn.gif)
![UVUnVis Ink](_derived/UVunVis.asp_cmp_fpg-gradient07c000_vbtn.gif)
![IR Ink](_derived/ext1320_cmp_fpg-gradient07c000_vbtn.gif) | |
We have three types of invisible ink
![bullet](_themes/fpg-gradient07c/dot.gif) | Bluish/White under UV - Isopropyl
Alcohol Based |
![bullet](_themes/fpg-gradient07c/dot.gif) | Yellow under longwave UV -
MEK Based *Requires 375nm or lower UV light. Lower works better. |
![bullet](_themes/fpg-gradient07c/dot.gif) | Red under UV - Acetone Based
*Requires 385nm or lower UV light. Lower works better. |
![bullet](_themes/fpg-gradient07c/dot.gif) | UVunVisl - Only visible with a
special UV camera and UV filter. Cannot be seen with a UV light, the
human eye or infrared sources. |
![bullet](_themes/fpg-gradient07c/dot.gif) | IR Invisible Ink - Alcohol Infrared Ink -
Fluoresces in the Infrared Range |
The Isopropyl Alcohol based inks are well suited for:
![bullet](_themes/fpg-gradient07c/dot.gif) | Hand Stamping for Access Control |
![bullet](_themes/fpg-gradient07c/dot.gif) | Writing on paper, cardboard, wood |
![bullet](_themes/fpg-gradient07c/dot.gif) | Porous Surfaces |
The Acetone based inks are well suited for:
![bullet](_themes/fpg-gradient07c/dot.gif) | Permanent marking on plastics |
![bullet](_themes/fpg-gradient07c/dot.gif) | Writing on painted surfaces |
![bullet](_themes/fpg-gradient07c/dot.gif) | Non-Porous, slick surfaces |
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