8‑Ounce Hi‑Visibility Orange Marking Chalk

This high-visibility orange chalk from the OX Pro series is designed for layout, marking and fix-up work where clear contrasting lines matter—especially on dark surfaces or in low-light conditions. The 8-ounce (226 g) container features a smooth-flowing nozzle and is rated for “Permanence 2” (meaning duration long enough for the job but not permanent). It’s suitable for both indoor and outdoor surfaces, giving you crisp, bright orange marks that remain legible through routine site conditions.

• Vibrant orange pigment: Ensures excellent contrast on dark substrates—concrete, drywall, metal, or wood—making layout lines stand out clearly.
• High-flow nozzle: Provides a smooth, consistent distributor of chalk powder, reducing clumping or uneven dispensing.
• Leak-proof quarter-turn cap: Helps keep the chalk dry, sealed and ready for use—important for job sites where moisture may degrade standard packaging.
• Weatherability rated at ~1 week: The chalk is designed to withstand a full working week outdoors under typical conditions, yet still be removable when necessary.
• Permanence rating “2”: This means the lines are durable for the duration of your site layout or job, but are not intended as totally permanent markings—easier to remove than a full permanent chalk or paint.

• Ideal for construction layout work: marking frames, walls, floor slabs or other structural components where visibility is important.
• Excellent for surfaces that are dark or low-light: e.g., asphalt, dark concrete, night-shift jobs, indoor renovation spaces.
• Useful for temporary markings that need to last through a job phase but then be cleaned or covered later—such as overlay work, temporary scaffolding grid lines, remodeling layout.
• Suitable across common job-site materials: wood, metal, drywall, stone, concrete and masonry.