---
product_id: 429092639
title: "Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle)"
brand: "opticz"
price: "€ 36.31"
currency: EUR
in_stock: true
reviews_count: 5
category: "Opticz"
url: https://www.desertcart.sk/products/429092639-opticz-all-purpose-invisible-blue-uv-blacklight-reactive-security-ink
store_origin: SK
region: Slovakia
---

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

**Brand:** opticz
**Price:** € 36.31
**Availability:** ✅ In Stock

## Summary

> 🔵 Illuminate the unseen, own the night!

## 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?** € 36.31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/429092639-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

- • **Fast-Dry Formula:** Alcohol-based ink dries quickly to ensure hassle-free stamping and long-lasting marks that resist washing.
- • **Vibrant Blue Pop:** Glows with an intense blue hue under UV light, making your markings unmistakably visible at glow parties or events.
- • **Stealth Security Glow:** Invisible ink that only reveals under UV blacklight—perfect for discreet marking and secure authentication.
- • **Trusted Brand Reliability:** Opticz’s proven formula trusted by professionals and creatives alike for consistent, high-performance invisible ink.
- • **Multiple Sizes, Bulk Savings:** Choose from 2oz to 32oz bottles with quantity discounts—scale your security or creative projects effortlessly.

## Overview

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 bulk discounts, it’s ideal for secure marking, glow parties, and creative stamping. Non-toxic and trusted by professionals, this ink offers reliable, long-lasting UV visibility for both casual and corporate use.

## Description

Our invisible UV ink is a trusted go to source from every day casual users to large corporations. You will be hard pressed to find a comparable ink that outperforms our blend. All purpose invisible UV blacklight reactive inks are ideal for glow parties, hand stamping, documents tags, marking valuables, admissions, and other unique security applications. Designed to stick and stay. Will not wash off easily. Invisible in normal light and glows bright blue under blacklight. This is not printer or tattoo ink.

Review: Fonctionne très bien 😀
Review: Waste of money...

## 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 | #31,371 in Office Products ( See Top 100 in Office Products ) #84 in Bottled Ink |
| Brand | Opticz |
| Closure | Screw Off Cap |
| Color | Black |
| Customer Reviews | 4.1 4.1 out of 5 stars (764) |
| Date First Available | 2 January 2022 |
| Grip Type | Smooth |
| Ink Color | Blue |
| Item Weight | 68 g |
| Line Size | 2mm_and_above |
| Manufacturer | Opticz |
| Manufacturer Part Number | DGINK2OZB |
| Material Type | Plastic |
| Model number | DGINK2OZB |
| Number of Items | 1 |
| Package Dimensions | 10.21 x 3.3 x 3.2 cm; 68 g |
| Pencil Lead Degree (Hardness) | Hard |
| Point Type | Broad |
| Size | 59 ml |

## Product Details

- **Brand:** Opticz
- **Global Trade Identification Number:** 00595013905461
- **Item volume:** 2 Fluid Ounces
- **Package information:** Can
- **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)
![Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle) - Image 2](https://m.media-amazon.com/images/I/619LWBGRsJL.jpg)
![Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle) - Image 3](https://m.media-amazon.com/images/I/61mPG3D0YEL.jpg)
![Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle) - Image 4](https://m.media-amazon.com/images/I/61MsJMJZdIL.jpg)
![Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle) - Image 5](https://m.media-amazon.com/images/I/6177J7hXIwL.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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by B***T on 10 February 2025*

Fonctionne très bien 😀

### ⭐ Review
*by R***Q on 4 April 2024*

Waste of money...

### ⭐⭐⭐⭐⭐ Review
*by A***R on 21 October 2022*

This product is easy to use and looks great under a black light. I've painted plastic, metal, fabric, paper and resin with minimal issues. I found that painting over fabric is particularly successful, and white is best. I was glad that I read the reviews that indicated that while this works well- it is very thin. On occasion, you do need a few coats to really pop- particularly if the object isn't stark white. This didn't show up on anything I painted in normal light- and is very much invisible until revealed by blacklight. This is exactly the answer to what I was looking for, for personal projects. I would buy again.

## Frequently Bought Together

- Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle)
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**Shop now:** [https://www.desertcart.sk/products/429092639-opticz-all-purpose-invisible-blue-uv-blacklight-reactive-security-ink](https://www.desertcart.sk/products/429092639-opticz-all-purpose-invisible-blue-uv-blacklight-reactive-security-ink)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-20*