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: 429092639

Details

Brand
Opticz
Global Trade Identification Number
Item volume
2 Fluid Ounces
Package information
Can
Paint type
Alcohol

⚡Fast drying alcohol-based

🔵Bright blue UV glow

🕶️Invisible in normal light

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€ 35.81

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In stock

Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔵 Invisible by day, unforgettable by night.

FAST DRY FORMULA - Alcohol-based ink dries quickly to ensure hassle-free stamping and long-lasting marks that resist washing off.
VIBRANT BLUE POP - Glows a striking blue under UV light, making your markings unmistakable and eye-catching at glow parties or security checks.
STEALTH SECURITY GLOW - Invisible ink that only reveals under UV blacklight—perfect for confidential marking and exclusive events.
VERSATILE SIZE OPTIONS - Available in 2oz to 32oz bottles with quantity discounts—scale your needs from personal use to corporate security.
TRUSTED BRAND RELIABILITY - Opticz’s proven quality with 4.2-star rating and a broad product line ensures you’re investing in dependable UV ink technology.

Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink is a fast-drying, alcohol-based ink that remains invisible under normal light but glows bright blue under UV blacklight. Available in multiple sizes with quantity discounts, it’s ideal for security marking, glow parties, and document tagging. Safe, non-toxic, and trusted by professionals and casual users alike, this ink offers reliable, long-lasting UV visibility for a variety of creative and security applications.

Specifications

ASIN	B005X8PKBI
Best Sellers Rank	#51,323 in Office Products ( See Top 100 in Office Products ) #136 in Bottled Ink
Brand Name	Opticz
Container Type	Can
Customer Reviews	4.1 4.1 out of 5 stars (767)
Global Trade Identification Number	00595013905461
Included Components	Ink Bottle
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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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