Official Store of Mighty Marker® by Arro-Mark®, 70+ Years of Craftsmanship.
Manufacturer of Specialty Paint & Ink Markers in the U.S.A.

Flag Icon

Mighty Marker® UV Security Permanent Invisible Ink

Invisible security markers, ink that's invisible to the naked eye and only visible under UV or black light, built for quality control and identification work.

PermanentInvisible Ink

Guaranteed Authentic

70+ Years of Expertise

Manufactured in the USA

Custom Markers Made to Spec

Featured Product

Need a different stroke width, color, or configuration? We can accommodate custom requirements → Request Custom Markers

MM-77 Mighty Marker UV Security Blacklight Marker

UV-reactive ink invisible until viewed under UV or black light. Large 10ml capacity, no-waste tube holds enough ink for hundreds of markings.

A double-sided 2.3mm bullet nib that delivers consistent lines, with a second usable tip ready to flip once the first wears down.

Capacity: 10mL

Shop MM-77 Medium $4.00
Mighty Marker
SURFACE COMPATIBILITY

Where UV Security Invisible Ink Markers Work

Mighty Marker® UV Security is built for where a tamper-evident or security mark is needed.

  • Metal: tooling, machined parts, equipment housings, automotive components, tamper-evident asset ID and part tracking, etc.
  • Glass: gauges, instrument panels, optical or lab glassware. Identification where a visible mark isn't wanted.
  • Plastics: molded housings, connectors, component parts, security marking and counterfeit/tamper detection and more.
 Marking something that's not listed here? Any material, one goal, a mark that holds. Browse All Surfaces

Why Buy A Mighty Marker®

Behind every Mighty Marker® is 70+ years of craftsmanship, in-house formula development, custom engineering, and compliance-ready manufacturing. Designed to solve your exact marking challenge.

Built on Craftsmanship Since 1956

That craftsmanship runs deep. Arro-Mark®'s team develops formula chemistry, tests surface compatibility, and validates performance under real industrial conditions. Expertise comes with every marker.

Formulas Developed by Arro-Mark®

Every Mighty Marker® formula is proprietary. What's in the marker is developed and manufactured exclusively by Arro-Mark® in Englewood, NJ. That means consistent performance, batch after batch.

Engineered for Your Application

When standard markers don't cut it, come to Arro-Mark® directly. Our team works with you to engineer marker solutions for your surfaces, your conditions, and your compliance requirements - not a generic substitute.

Compliance? Come to the Source

Low-chloride, MIL-spec, ASTM, nuclear-grade - if your application requires certified documentation, Arro-Mark® has it. We've been supplying compliance-ready markers to regulated industries for decades.

Let's Engineer the Right Marker

Can't find a marker that does exactly what you need? Arro-Mark® will engineer a custom marker to your spec.

Request Custom Markers

Frequently Asked Questions

What makes a UV security marker different from a standard marker?
Mighty Marker® UV Security uses a permanent ink that's invisible to the naked eye and only becomes visible under UV or black light, built for security marking, quality control, and identification work rather than a standard visible mark.
What surfaces does it work on?
What surfaces does it work on?
What temperature range is it rated for?
-20°F to 130°F (-29°C to 55°C).
Does Arro-Mark® offer custom marker solutions for specific applications?
Yes. If your facility has a surface condition, compliance requirement, or application this line doesn't address, Arro-Mark® engineers custom markers built to your specification. Talk to an expert, we'll develop the right solution for your operation.

Mighty Marker® UV Security is an invisible-ink marker line built for security marking, quality control, and identification work on plastics, glass, and metal. The permanent UV-reactive ink is invisible to the naked eye and only becomes visible under UV or black light, a discreet way to flag parts or verify assembly steps.

UV-Reactive Marks for Security and Quality Control

Available with a 2.3mm medium bullet nib and 10ml capacity in UV Blue. Marks are tamper resistant and permanent once applied. Rated from -20°F to 130°F (-29°C to 55°C).

Where Mighty Marker® UV Security Marking Matters Most

Mighty Marker® UV Security marking shows up in inspection, manufacturing, industrial, OEM manufacturing, and automotive manufacturing settings, wherever parts, assemblies, or items need a tamper-evident or security mark that doesn't compete with a standard visible mark. It's built for select plastics, glass, and metal surfaces indoors.

Your Needs, Our Expertise

Markers built for your unique surface, condition, application, and compliance.

Request Custom Markers

We're here to help with technical questions, choosing a marker, or order status.

Talk to an Expert

Customer Service

Mon-Fri, 8:00am-4:30pm EST.

Call Us

  • 888.440.2776
  • 201.567.4112

Get in Touch

sales@industrialmarkingpens.com

Address

158 West Forest Ave.
Englewood, NJ 07631
United States