Standard felt markers fail on contaminated metals, burning off during heat cycles or washing away under harsh cutting fluids. The Markal 2301M Valve Action Marker delivers a high-purity, fast-drying liquid paint line that cuts through light oils and rust to guarantee permanent heat- and water-resistant identification across demanding fabrication environments.
What’s In the Box
Benefit-Driven Technicals
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Valve-actuated paint flow control: Releases paint on demand to ensure consistent nib saturation without pooling or dripping on vertical workpiece surfaces.
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Xylene-free, low-VOC formulation: Minimises occupational health risks and compliance burdens in closed-ventilation workshop environments.
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Heavy-duty metal barrel: Resists crushing and puncture damage when stored in operator tool belts or busy workbenches.
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Dura-nib reversible bullet tip: Extends marker lifespan by allowing the tip to be inverted when worn, reducing consumable replacement costs.
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1 to 3 minute cure time: Eliminates mark smudging during rapid piece-part handling and direct transition to assembly lines.
Features
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Valve action mechanism prevents paint drying out when capped
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Bright yellow high-contrast pigment for instant visual recognition
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Weather-resistant and UV-resistant paint formulation
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Durable aluminium barrel construction
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Reversible wear-resistant bullet nib
Applications
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Structural steel layout and mark-up prior to cutting or welding
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Quality control tagging and pass/fail inspection identification
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Pipework layout, tube tracing, and fabrication mapping
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Automotive assembly marking and batch identification
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Colour-coding raw material inventory and stock control
EWS Expert Note
For optimal paint flow on oily plate or cold stock, depress the nib against a clean piece of scrap card 3 to 4 times to prime the internal valve chamber. Avoid pumping the nib repeatedly on your primary workpiece, as over-saturation can flood the dura-nib, creating excess fluid build-up that compromises line precision during detailed layout operations.
Pros & Cons
Pros:
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Cut-through capability penetrates light oils and mill scale without bleed-through or fading
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Low halogen and chloride levels make it safe for use on stainless steel and sensitive alloys
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Fast-drying formula prevents smearing on high-throughput automated fabrication lines
Cons:
Technical FAQs
Q: Is the Markal 2301M marker compatible for use on structural stainless steel prior to welding?
A: Yes, the Xylene-free paint formulation contains low levels of halogens and sulfur compounds. This prevents cross-contamination and stress-corrosion cracking risks on stainless steel, aluminium, and exotic alloys during thermal operations, making it suitable for high-integrity nuclear, aerospace, and structural steel fabrication environments.
Q: How does the marker perform on wet or heavily rusted steel surfaces?
A: The liquid paint formula readily cuts through light rust, dust, and light oil films. However, on submerged, standing wet, or heavy flake-rusted surfaces, adhesion decreases. For heavily corroded or soaked surfaces, clean the target zone with a wire brush or degreaser to ensure permanent substrate adhesion.
Q: What storage and handling standards are required to ensure shelf life compliance?
A: Store markers horizontally in a cool, dry area away from direct thermal sources. Ensure caps are fully clicked shut after use to prevent nib desiccation. The valve-action design complies with UK REACH regulations, requiring no hazardous solvent disposal protocols when completely emptied under normal workshop conditions.
As an Official UK Stockist, Express Weldcare provides genuine Markal equipment with expert technical backup and fast despatch.