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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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Mighty Marker® High Purity

High Purity Inks and Paints formulated for use where corrosion and contamination are a concern.

PermanentNuclear GradeLab CertifiedLow ChlorideLow Halogen
MARKS ON THESE CONDITIONS:
Clean Surfaces Recommended

Guaranteed Authentic

70+ Years of Expertise

Manufactured in the USA

Custom Markers Made to Spec

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6 products

Permanent Ink Marker

MM-08 Mighty Marker® High Purity - Large

Large reversible bullet & chisel nib. Lab certified for nuclear and aerospace.
Regular price $9.50
Sale price $9.50 Regular price
MM-01 Mighty Marker High Purity - Fine - Capillary

Permanent Ink Marker

MM-01 Mighty Marker High Purity - Fine - Capillary

Fine Tip Capillary-fed. Ready to write, no priming needed.
Regular price $7.50
Sale price $7.50 Regular price

Permanent Ink Marker

MM-06 Mighty Marker High Purity - Extra Fine

Extra fine 1.0mm nib. Lab certified for nuclear and aerospace.
Regular price $9.25
Sale price $9.25 Regular price

Permanent Ink Marker

MM-07 Mighty Marker High Purity - Fine

Fine 1.2mm bullet nib. Lab Certified for nuclear and aerospace.
Regular price $8.75
Sale price $8.75 Regular price
MM-11 Mighty Marker High Purity - Medium

Permanent Ink Marker

MM-11 Mighty Marker High Purity - Medium

Medium 2.3mm nib with clip cap. Lab certified for nuclear and aerospace.
Regular price $7.50
Sale price $7.50 Regular price

Permanent Ink Marker

MM-09 Mighty Marker High Purity - Shorty

Shorty 3-Edge chisel nib. Lab certified for nuclear and aerospace.
Regular price $12.00
Sale price $12.00 Regular price
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Compare High Purity Markers

Manufactured by ArroMark in USA Manufactured in USA by
Arro-Mark®
All markers in this line:
PermanentNuclear GradeLab CertifiedLow ChlorideLow Halogen
Works On:
Metal

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MM-08 Large MM-01 Fine Capillary MM-06 Extra Fine MM-07 Fine MM-11 Medium MM-09 Shorty
Price $9.50 $7.50 $9.25 $8.75 $7.50 $12.00
Nib / Tips Available
  • Dual Reversible Medium Bullet & Chisel
  • Fine Bullet
  • Extra Fine Bullet
  • Fine Bullet
  • Medium Bullet
  • Shorty Slanted Chisel
Stroke Widths Available 3.2mm Bullet, 4.8mm Chisel 1.0mm Bullet 1.0mm Bullet 1.2mm Bullet 2.3mm Bullet Varies by angle: 1.2mm, 4.2mm, 7.2mm Chisel
Content Capacity 13ml 3mL 4mL 10mL 17mL
Clip Cap
Key Feature Reversible dual-sided nib, 3.2mm bullet & 4.8mm chisel. Capillary-action fine bullet nib, 1.0mm, no-prime design Extra fine 1.0mm bullet nib, the line's finest valve-action tip. Fine 1.2mm bullet nib, one step wider than the line's extra fine tip. Medium 2.3mm bullet nib with easy carry clip cap. 3-edge chisel nib, fine 1.2mm to broad 7.2mm in one tip in a shorter barrel.
Shop MM-08 Large Shop MM-01 Fine Capillary Shop MM-06 Extra Fine Shop MM-07 Fine Shop MM-11 Medium Shop MM-09 Shorty

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

Mighty Marker
SURFACE COMPATIBILITY

Where High Purity Markers Work

Every High Purity marker is formulated to protect the metals it touches. A low-chloride, low-halogen formula keeps contamination and corrosion risk low on stainless steel, titanium, and other sensitive alloys.

  • Stainless Steel: clean stainless steel surfaces across nuclear, aerospace, and fabrication settings.
  • Titanium: corrosion-sensitive titanium components where
    formula purity matters.
  • Exotic Metals & Alloys: other contamination-sensitive alloys used in aerospace and nuclear applications.
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, 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 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.

Frequently Asked Questions

What makes Mighty Marker® High Purity different from other Arro-Mark markers?
Every High Purity marker uses a low-chloride, low-halogen formula that’s independently lab tested and certified, meeting or exceeding aerospace specifications including GE# D50TF8-S7 and others. Lab certification, a certificate of compliance, and a safety data sheet (SDS) are included with every purchase.
What surfaces is High Purity safe to mark?
Stainless steel, titanium, and other corrosion and contamination sensitive alloys, in nuclear, aerospace, and stainless steel fabrication settings.
Do all High Purity markers work the same way?
Five of the six, MM-06, MM-07, MM-11, MM-08, and MM-09, are valve-action markers: press to release ink, lift to stop. MM-01 is capillary-fed instead, ready to write immediately with no priming required. Choose based on the tip width and format your application calls for.
What is the temperature usage range?
Black ink: -20°F to 130°F (-29°C to 55°C). Paint colors: -40°F to 150°F (-40°C to 66°C). Range depends on which color is selected.

Lab-Certified, Low-Chloride Markers for Nuclear and Aerospace Metal Work

Mighty Marker® High Purity is a low-chloride, low-halogen paint and ink line built for marking stainless steel, titanium, and other corrosion and contamination-sensitive alloys.

Each formula is independently lab tested and certified, meeting or exceeding aerospace specifications including GE# D50TF8-S7 and others.

Available in six sizes, from the capillary-fed MM-01 Fine to the 3-edge chisel MM-09 Shorty, with tip widths from 1.0mm to 7.2mm and capacities up to 17mL.

Lab certification, a certificate of compliance, and a safety data sheet (SDS) are included with every purchase. This documentation supports traceability, audit readiness, and internal quality control requirements. ready for regulated nuclear, aerospace, and stainless steel fabrication work.

Manufactured in the USA by Arro-Mark® Company, L.L.C., 70+ years in of craftsmanship.

Need a marker engineered for a specific surface, condition, or compliance requirement? Talk to an Arro-Mark® expert.

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