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: 429092639

Details

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

⚡Fast drying alcohol base

🔵Bright blue UV glow

🕵️‍♂️Invisible in normal light

₹ 3701

Duties & taxes included

In stock

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Description

🔵 Illuminate the unseen, own the night!

FAST DRY FORMULA - Alcohol-based ink dries quickly to ensure hassle-free stamping and long-lasting marks.
VIBRANT BLUE POP - Glows with an intense blue hue under UV light, making your markings impossible to miss at glow parties or events.
STEALTH SECURITY GLOW - Invisible ink that only reveals under UV blacklight—perfect for discreet marking and authentication.
VERSATILE SIZING OPTIONS - Available in 2oz to 32oz bottles with quantity discounts—scale your security or creative needs effortlessly.
TRUSTED BRAND RELIABILITY - Opticz’s proven formula trusted by casual users and corporations alike for secure, non-toxic marking.

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 with quantity discounts, it’s ideal for security marking, glow parties, and document tagging. Non-toxic and trusted by professionals and hobbyists alike, this ink offers reliable, long-lasting, and discreet UV visibility.

Specifications

ASIN	B005X8PKBI
Best Sellers Rank	#26,793 in Office Products ( See Top 100 in Office Products ) #67 in Bottled Ink
Brand	Opticz
Brand Name	Opticz
Container Type	Can
Customer Reviews	4.2 out of 5 stars 772 Reviews
Global Trade Identification Number	00595013905461
Included Components	Ink Bottle
Ink Color	Blue
Item volume	2 Fluid Ounces
Manufacturer	Opticz
Manufacturer Part Number	DGINK2OZB
Model Number	DGINK2OZB
Number of Items	1
Package information	Can
Paint Type	Alcohol
Paint type	Alcohol
UPC	595013905461 890747002302
Volume	2 Fluid Ounces

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We typically deliver within 4-9 business days to major Indian cities. Each order is trackable end-to-end through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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All products are sourced from US, UK, and UAE. Our prices include international shipping costs, customs duties, payment processing fees and logistics handling to ensure smooth delivery to India. We handle all customs clearance so you don't face any hidden charges later.

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