Uni Paint PX 30 and MPDX BOLD TIP Heavy Duty Industrial Markers

Chisel Tip, Xylene based markers for oily and wet surfaces, glass, metal, rubber, plastics, wood, composites. Excellent for cold and wet weather marking.

Note: This page includes both the Uni Paint PX-30 and our MPDX Bold equivalent marker.

While many customers choose MPDX as a cost-effective alternative, some prefer the original Uni brand.
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Uni Paint PX-30 & MPDX Bold Industrial Paint Markers | 1/4" Chisel Tip Paint Markers – Bulk Pricing at MarkingPenDepot.com

The Uni Paint PX-30 Industrial Paint Marker is a top-performing oil-based paint marker designed for bold, permanent marking on tough industrial surfaces. Featuring a 1/4" chisel tip, the PX-30 delivers high-visibility marks with multiple line widths, making it ideal for large lettering, layout work, and industrial identification.

Available now at MarkingPenDepot.com, the PX-30 paint marker is widely used in manufacturing, construction, welding, fabrication, warehouses, and maintenance operations where durability and visibility are critical.

Uni Paint PX-30 Key Features:

• 1/4" chisel tip paint marker – create fine, medium, or bold lines
• Permanent oil-based paint for long-lasting industrial marks
• Writes on metal, plastic, glass, wood, rubber, and concrete
• Fast-drying, weather-resistant, and fade-resistant
• Excellent for industrial marking, part identification, and quality control

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MPDX Bold – The Best Low-Cost Alternative to PX-30

Looking to reduce costs without sacrificing performance? The MPDX Bold Industrial Paint Marker, available exclusively at MarkingPenDepot.com, is the best value alternative to the Uni Paint PX-30.

Designed for high-volume industrial users, the MPDX Bold offers:

• 1/4" chisel tip for the same bold, versatile marking capability
• High-opacity industrial paint for strong, visible marks
• Reliable performance on metal, wood, plastic, concrete, and more
• Lower cost per marker—perfect for bulk and large-scale operations

If your operation uses large quantities of industrial paint markers, switching to MPDX Bold can deliver significant cost savings without compromising on performance.

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MarkingPenDepot.com – The #1 Source for Industrial Paint Markers

When it comes to industrial paint markers in bulk, MarkingPenDepot.com is the leading supplier online:

• Largest selection of industrial paint markers including PX-30 and MPDX Bold
• Aggressive bulk discounts, case pricing, and pallet quantities available
• Deep inventory for fast shipping and high-volume orders
• Trusted by industrial buyers, contractors, and supply managers nationwide