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

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

Product ID: 3620920

Details

Brand
Opticz
Global Trade Identification Number
Item Volume
2 Fluid Ounces
Package Information
Bottle
Paint Type
Alcohol

⚡Fast drying alcohol-based

🔵Bright blue UV glow

🕶️Invisible in normal light

Description

🔦 Illuminate your secrets with invisible brilliance!

QUICK CLEAN - Alcohol-based formula dries fast, perfect for on-the-go stamping and marking.
GLOW LIKE A PRO - Blazing bright blue fluorescence under blacklight for instant wow factor.
SIZE YOUR IMPACT - Available in 5 sizes from 2oz to 32oz to fit every project scale and budget.
STEALTH MODE ACTIVATED - Invisible ink that stays hidden until UV light reveals your secret.
VERSATILE MARKING POWER - Works on metal, glass, plastics, paper, and even skin—safe and non-toxic.

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. Safe and non-toxic when used as directed, it’s ideal for security marking, glow parties, and secret messages on a variety of surfaces including skin, metal, glass, and plastics. Available in multiple sizes to suit any need, this trusted ink offers durable, non-transferable, and highly visible UV fluorescence for professional and creative applications.

Specifications

ASIN	B005X8PKBI
Best Sellers Rank	#143,983 in Office Products ( See Top 100 in Office Products ) #216 in Bottled Pen Ink
Brand Name	Opticz
Container Type	Bottle
Customer Reviews	4.2 4.2 out of 5 stars (1,069)
Global Trade Identification Number	00595013905461
Ink Color	Blue
Manufacturer	Opticz
Manufacturer Part Number	DGINK2OZB
Model Number	DGINK2OZB
Number of Items	1
Paint Type	Alcohol
UPC	595013905461 890747002302
Volume	2 Fluid Ounces

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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2 weeks ago

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5 days ago

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