---
product_id: 3620920
title: "Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle)"
brand: "opticz"
price: "€ 32.58"
currency: EUR
in_stock: true
category: "Opticz"
url: https://www.desertcart.at/products/3620920-opticz-all-purpose-invisible-blue-uv-blacklight-reactive-security-ink
store_origin: AT
region: Austria
---

# Bright blue glow under UV Invisible in normal light Fast drying alcohol-based ink Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle)

**Brand:** opticz
**Price:** € 32.58
**Availability:** ✅ In Stock

## Summary

> 🔵 Illuminate the unseen, secure with style!

## Quick Answers

- **What is this?** Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle) by opticz
- **How much does it cost?** € 32.58 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/3620920-opticz-all-purpose-invisible-blue-uv-blacklight-reactive-security-ink)

## Best For

- opticz enthusiasts

## Why This Product

- Trusted opticz brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Size Your Needs:** Available in 5 sizes from 2oz to 32oz with quantity discounts—stock up and save!
- • **Fast & Safe Formula:** Non-toxic, alcohol-based ink dries quickly for hassle-free application.
- • **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.
- • **Trusted Brand Assurance:** Opticz quality you can rely on, with a full range of UV inks and blacklights to elevate your creative projects.

## Overview

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, event stamping, and creative projects. Non-toxic and trusted by professionals, this ink offers a discreet yet powerful way to protect and personalize valuables.

## Description

desertcart.com : Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle) : Party Favors : Office Products

## Features

- Invisible in regular light, glows bright blue in blacklight. The colors really pop in ultraviolet light but are undetectable in normal light.
- Choose between 5 sizes discounted by quantity. 2oz, 4oz, 8oz, 16oz and 32oz.
- Ideal for glow parties, hand stamping, marking valuables, admissions, and much more
- Safe and non toxic when used as directed. Alcohol based and fast drying. Ideal for stamp pads and rubber stamps. NOT FOR PRINTERS OR TATTOOS.
- Trusted Opticz Brand. We also carry a full line of invisible UV ink marker, uv blacklights and daytime visible inks. Click on our brand name OPTICZ to see our entire selection in our storefront!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005X8PKBI |
| Best Sellers Rank | #60,350 in Office Products ( See Top 100 in Office Products ) #87 in Bottled Pen Ink |
| Brand Name | Opticz |
| Container Type | Bottle |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,082) |
| 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 |

## Product Details

- **Brand:** Opticz
- **Global Trade Identification Number:** 00595013905461
- **Item Volume:** 2 fluid ounces
- **Package Information:** Bottle
- **Paint Type:** Alcohol

## Images

![Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle) - Image 1](https://m.media-amazon.com/images/I/61p1NYcbmuL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: What would this look like on black fabric?**
A: The ink will still glow in UV light on any surface. The exact appearance would depend on how absorbent the fabric is.

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

**Q: Can you use if in a fountain pen?**
A: 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.

**Q: 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**
A: 385-390NM. Fluorescent black light works the best.

## Frequently Bought Together

- Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle)
- Carter's Felt Uninked Stamp Pad, 2.75 x 4.27 Inches (21021)
- COSOOS 2 Pack UV Flashlight, 12 LED Handheld Blacklight Flashlight 395nm Mini Light Torch Detector for Dog Pet Urine Stains, Bed Bugs and Scorpions. (Batteries not Included)

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**Shop now:** [https://www.desertcart.at/products/3620920-opticz-all-purpose-invisible-blue-uv-blacklight-reactive-security-ink](https://www.desertcart.at/products/3620920-opticz-all-purpose-invisible-blue-uv-blacklight-reactive-security-ink)

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-10-12*