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

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Specifications
Permanence Permanent
Marker Type Alcohol-based Ink
Actuation Valve Controlled
Barrel Plastic
Content Capacity 10mL
Surface Features
Surface Stainless Steel, Titanium, Exotic Metals, Alloys
Application Temperature use at -20°F to 130°F (-29°C to 55°C)
Nib Details
Stroke Widths Available 2.3mm Bullet
Nib Types Available Medium Bullet
Nib Features

The medium 2.3mm bullet nib lays down bold, easy-to-read marks for identification and layout work.

Need Custom Sizes & Colors?
We can accommodate custom requirements → Request a Custom Solution
Durability
Dry Time Quick Drying
Uses
Application Sensitive Metal, Indoor
Industries Aerospace & Aviation, Nuclear & Power Generation, Manufacturing, Metal Fabrication, Welding, Inspection
Description

The MM-11 Mighty Marker® High Purity Medium markers contain laboratory certified, low corrosive, low halogen, high-purity inks or paints. They are used to safely mark stainless steel, titanium, and other exotic metals in settings that require low corrosive requirements like aerospace and nuclear industries. These paints meet or exceed requirements of various aerospace specs such as GE# D50TF8-S7, and various nuclear grade specs such as GE# D50YP12. These pens are also certified for Westinghouse, Pratt & Whitney, and Chicago Bridge & Iron.

Low Chloride, Low Fluorine, Low Mercury, Low Cadmium, Low Lead, Low Zinc, Low Sulfur, Low Sodium, Low nitrates, and more.

The medium 2.3mm bullet nib lays down bold, easy-to-read marks for identification and layout work.

Trusted in nuclear, aerospace, and stainless steel fabrication for identification, layout, and inspection marking on sensitive metals. Manufactured in the USA by Arro-Mark®, 70+ years of industrial marking craftsmanship.

Lab Certification, Certificate of Compliance, and SDS are included with your purchase.

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Hazmat Information

Our products are not corrosive to metal. For Industrial use only. Keep away from children. WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov.

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 the 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, conditions, compliance requirements, mark size, and color - not a generic substitute.

Compliance? Come to the Source

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

Frequently Asked Questions

How does this marker work?
This marker has a valve controlled mechanism. Press to release ink, lift to stop.
What's included with each order?
Every purchase of High Purity markers include lab certification, a certificate of compliance, and a safety data sheet (SDS) addressed to the purchasing company or individual.