Sharpie Magnum Permanent Markers – Weather-Resistant Marker for Outdoor Job Sites, Permanent Black Ink 12 Count Bulk
Sharpie Magnum Permanent Markers – Weather-Resistant Marker for Outdoor Job Sites, Permanent Black Ink 12 Count Bulk
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Why you'll love it
- Oversized 3/4-inch chisel tip covers wide areas fast, ideal for poster-size writing
- Unique wet and oily surface formula works where standard markers fail
- Versatile across 8+ materials (corrugate, wood, metal, foil, stone, plastic, leather) reducing the need for multiple marker types
- Bold, highly visible black lines that stand out from a distance
- Made in the USA, signaling quality and reliability
- Bulk 12-count pack delivers strong per-unit value for classrooms and teams
Perfect for
- Creating large poster boards and classroom visual aids
- Labeling corrugate boxes, lumber, and metal inventory in warehouses
- Marking wet or oily surfaces like stone, foil, and plastic on job sites
- Making bold, highly visible signs for events and announcements
- Heavy-duty DIY projects on wood, leather, and outdoor materials
Product Information
Oversized chisel tip for extra wide marks, great for poster boards
Durable, 3/4-inch felt chisel tip draws bold, highly visible lines
Specially formulated for both wet and oily surfaces, perfect for corrugate, wood, metal, foil, stone, plastic, leather and more
Made in the USA
Perfect for when info is high priority and precision is a must, Sharpie Highlighters make everything highly visible with brilliant colors in transparent, smooth, and quick-drying ink. These wide-barreled tank highlighters feature a large ink supply for dependable and long-lasting use and an easy gliding chisel tip that highlights and underlines both wide and narrow lines of text. The quick-drying ink resists smearing many pen or marker inks. And with an array of brilliant colors, Sharpie highlighters make your most important thoughts and notes jump off the page. It’s no wonder why Sharpie is the got-to-have highlighter for life’s major high points.Ink Color: Black
Writing Instrument Form: Marker Pen
Point Type: Chisel
Additional Features: Waterproof
Water Resistance Level: Not Water Resistant
Line Size: 3
Hand Orientation: Ambidextrous
Is Waterproof: true
Grip Type: Comfort
Color: Black
Style: 12-count Black Magnum
Pattern: Markers
Body Shape: Rectangular
Number of Items: 1
Item Weight: 1.4 Pounds
Item Dimensions: 1 x 7.75 x 7.6 inches
Item Dimensions D x W x H: 4.7"D x 5.9"W x 3.8"H
Item Diameter: 3.38 Inches
Number of Pieces: 12
Recommended Uses For Product: Metal,Plastic,Stone,Wood
Age Range Description: All Ages
Target Audience: Adult, Kid, Youth
Model Name: Magnum Black Permenant Markers
Marker Type: Permanent Marker
Item Type Name: Permanent Marker
Included Components: ART SUPPLIES
Surface Recommendation: Leather
Material Type: Plastic
Ink Base: Alcohol
Frequently Asked Questions
Will this marker hold up in direct sunlight and rain on an outdoor job site?
Yes. The waterproof, quick-drying permanent ink resists fading and wash-off once cured, even in outdoor conditions. The bold black lines remain highly visible against wood, metal, and stone in bright daylight.
Can I use this to mark lumber and treated wood outdoors?
Absolutely. The Magnum is compatible with wood, including rough-sawn and pressure-treated lumber, and the wide chisel tip lays down marks fast across dimensional boards and pallet stock.
Does the ink perform on cold or damp outdoor surfaces?
It performs well on damp surfaces thanks to the alcohol-based formula that displaces moisture. In freezing conditions, ink flow can slow slightly, so store markers at room temperature before heading into the cold.
Is this marker durable enough to carry in a tool belt or truck?
Yes. The rectangular barrel and chunky chisel tip are built for rough handling, and the cap seals tightly to prevent drying out during transport between job sites.
Can I use it for trail signs, campsite markers, or outdoor event signage?
Yes. The bold black ink stands out from a distance on wood, stone, and metal, which makes it a strong choice for trail blazing, event wayfinding, and camp identification.
What is the outdoor benefit of the 3/4-inch chisel tip?
It produces wide, high-visibility strokes that are readable from a distance, which is critical for signage, wayfinding, and safety marking in open-air environments. One stroke replaces the multiple passes smaller markers require.
How does the waterproof formula help in outdoor use?
Outdoor surfaces are routinely exposed to dew, rain, and condensation. Waterproof ink prevents smearing and wash-off, so your marks stay legible through changing weather and overnight conditions.
Is the chisel tip strong enough for marking rough outdoor materials like stone and bark?
Yes. The oversized felt chisel tip is firm enough to push ink into textured surfaces like stone, bark, and unfinished wood, which finer markers tend to skip across.
How does this compare to a paint pen for outdoor marking?
Paint pens work well on smooth surfaces but often clog and require shaking. The Magnum is faster to deploy, more consistent in flow, and easier to use in cold or windy outdoor conditions.
How does this compare to a grease pencil or lumber crayon for lumber yards?
Lumber crayons are inexpensive but fade quickly and do not work on wet wood. The Magnum produces bolder, longer-lasting marks and still performs on damp lumber, which is a major advantage in active lumber yards.
What about chalk markers for outdoor events - is this comparable?
Chalk markers are designed for temporary, erasable use on glass and chalkboards. The Magnum is permanent and built for outdoor materials like wood, metal, and stone, so it is the better choice for signs that need to last.
Will the ink fade in prolonged direct sunlight?
Bold black permanent ink holds up well in sunlight, though all permanent inks will eventually fade with months of UV exposure. For seasonal or event-length signage, the Magnum is more than durable enough.
Can the marker survive being dropped on concrete or gravel?
The chunky barrel and snug-fitting cap are designed to withstand typical job-site drops. Like any marker, repeated hard impacts may eventually crack the tip, so the included bulk pack is useful as a backup.
Is it too big to pack for camping or hiking trips?
It is larger than a standard Sharpie, but the wide tip and multi-surface compatibility are what make it useful for marking gear, trail signs, and campsite identifiers. Most outdoor users treat the size as a feature, not a drawback.
How do I get the best results from a Sharpie Magnum chisel tip marker?
Recap the marker promptly after use, store it horizontally, and press the tip firmly against the surface to fully engage the felt. For very rough materials like stone or bark, press hard enough that the felt flattens slightly to push ink into the texture.
How long does the ink take to dry, and is it really waterproof?
The alcohol-based ink typically dries in seconds on porous surfaces and within a minute on non-porous surfaces like plastic or metal. Once dry, it is waterproof and resistant to smearing, though it will eventually fade with prolonged UV exposure.
Can I revive a Magnum marker that has dried out?
Sometimes. Place the tip in a small amount of rubbing alcohol for 30 to 60 minutes, then recap and let it sit overnight. If the felt is still hardened the next day, the marker has reached end of life and should be replaced.
Does this marker work on glass and ceramic?
It can mark glass and ceramic, but because those are smooth non-porous surfaces, the ink can be scraped off more easily than on rougher materials. For permanent marks on glass, a dedicated paint marker is generally a better choice.
Is the ink safe to use on food packaging or containers?
The ink is not certified food-safe and should not be applied directly to surfaces that contact food. It is appropriate for marking the outside of corrugate boxes, storage bins, and shipping cartons, but not for labeling food containers themselves.
What is included in the box, and is anything sold separately?
The package includes 12 Sharpie Magnum permanent markers in the color you select (Black or Blue). No additional accessories are required, though many users buy a marker caddy or wall holder separately for classroom and shop organization.
Is this marker made in the USA?
Yes. Sharpie Magnum permanent markers are made in the USA, which many buyers consider a signal of consistent quality control and reliable manufacturing standards.
What is the shelf life of an unopened Magnum marker?
An unopened marker stored in a cool, dry place typically retains good ink quality for two to three years. Once opened and used, lifespan depends on how often the cap is left off and how the marker is stored.
How is a permanent marker different from a dry erase or paint marker?
Permanent markers use quick-drying alcohol-based ink that bonds to surfaces and cannot be erased. Dry erase markers use low-tack ink designed to wipe off smooth whiteboards. Paint markers use actual paint that sits on top of the surface and is often more durable but slower to dry and harder to control.
