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)

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 formula

💡Bright blue glow under UV blacklight

🔵Invisible in normal light

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€ 25.71

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Sold byAmazon BelgiumDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔵 Illuminate the unseen, secure with style!

SIZE YOUR NEEDS - Available in 5 convenient sizes from 2oz to 32oz—bulk discounts included.
FAST SAFE FORMULA - Non-toxic, alcohol-based ink dries quickly for hassle-free application.
TRUSTED BRAND POWER - Opticz quality you can rely on, with a full range of UV inks and blacklights to explore.
GLOW UP YOUR SECURITY - Perfect for marking valuables, admissions, and event stamping with a UV-reactive punch.
STEALTH MODE ACTIVATED - Invisible ink that stays hidden until UV light reveals its vibrant blue glow.

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, it’s ideal for secure marking, event stamping, and creative uses, all while being safe and non-toxic when used as directed.

Specifications

ASIN	B005X8PKBI
Best Sellers Rank	#164,152 in Office Products ( See Top 100 in Office Products ) #267 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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How is product pricing calculated?+

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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Excellent communication throughout the order process. Product is perfect.

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€ 25.71

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In stock

Sold byAmazon BelgiumDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Belgium.

Secure transaction

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