What would this look like on black fabric?

The ink will still glow in UV light on any surface. The exact appearance would depend on how absorbent the fabric is.

I live in a high crime town,i have lost 5 tables from the front porch,looking for a invisable long lasting ink/marking method so if cops can identify

If you mark the underside of the table so that it is not exposed to sunlight or rain, it should work fine.

Can you use if in a fountain pen?

Would not be ideal for this purpose. Fountain pen ink is typically water based. Our inks are alcohol based and much thinner than a water based ink. They can work well with calligraphy pens in some cases, but an alcohol based ink would not mesh well with the internal parts of a fountain pen.

What wavelength (nm?) of black light is the ink most sensitive to? i want to purchase some uv leds and want the brightest florescence i can get. thx

385-390NM. Fluorescent black light works the best.

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🔦 Illuminate the unseen, own the night!

SAFE TRUSTED - Non-toxic and reliable Opticz brand ink, ideal for stamping valuables, admissions, and creative glow parties.
FAST DRY FORMULA - Alcohol-based ink dries quickly to keep your workflow smooth and mess-free.
VIBRANT BLUE POP - Glows a striking blue under UV light, making your markings unmistakable and eye-catching.
STEALTH SECURITY GLOW - Invisible ink that only reveals under UV blacklight—perfect for confidential marking and exclusive events.
VERSATILE SIZING OPTIONS - Available in 2oz to 32oz bottles with quantity discounts—scale your projects effortlessly.

Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink is a fast-drying, alcohol-based ink that remains invisible in normal light but glows bright blue under UV blacklight. Available in multiple sizes from 2oz to 32oz, it’s perfect for security marking, glow parties, and stamping valuables. Non-toxic and trusted by professionals, this ink offers a reliable, vibrant solution for creative and security applications.

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3684₴

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Ukrainestore

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Manufacturer	Opticz
Brand	Opticz
Model number	DGINK2OZB
Package Dimensions	10.21 x 3.3 x 3.2 cm; 68 g
Color	Black
Closure	Screw Off Cap
Grip Type	Smooth
Pencil Lead Degree (Hardness)	Hard
Material Type	Plastic
Number of Items	1
Size	59 ml
Point Type	Broad
Line Size	2mm_and_above
Ink Color	Blue
Manufacturer Part Number	DGINK2OZB
Item Weight	68 g

OpticzAll Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle)

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