Keson 8 oz. Glo-Orange ProChalk Standard Grade Marking Chalk

Turn quick snaps into can’t-miss layout lines. This pocket-size 8 oz bottle of Glo-Orange ProChalk delivers bright, high-contrast marks that stand out on wood, concrete, and sheathing. The standard-grade, finely milled formula feeds smoothly, coats evenly, and wipes or rinses away when the job’s done. Perfect for punch lists, trim work, and small-to-mid projects when a full jug is overkill.

Key Features

• High-visibility Glo-Orange color: Bold, easy-to-spot lines for fast checks indoors or out.
• Standard/removable grade: Temporary marks that typically clean off with a wipe or rinse (always test first).
• Finely milled formula: Smooth flow through chalk line reels for sharp, consistent snaps.
• Pocket-friendly 8 oz size: Ideal for service calls and small jobs; easy to carry, stash, and refill on the fly.
• Universal compatibility: Works with most chalk line reels from major brands.
• Clean refill design: Resealable cap/pour spout helps prevent spills and clumping.
• Jobsite versatility: Reliable on wood, concrete, drywall, OSB/plywood, and subfloor sheathing in dry conditions.

Brand/Model: ProChalk Standard Grade, Glo-Orange

Product Type: Marking chalk powder for chalk line reels

Color: Glo-Orange (high-visibility orange)

Material: Finely milled calcium carbonate with inert pigments and flow/anti-caking additives

Form: Dry powder

Weight (Net): 8 oz (0.5 lb / ~227 g)

Container Type: Resealable plastic squeeze bottle with pour spout

Dimensions (Container): ~6 × 2.5 × 1.5 in (approx.; varies by packaging)

Compatibility: Standard chalk line reels (most major brands)

Surface Suitability: Wood, concrete, drywall, OSB/plywood, subfloor sheathing (best in dry conditions)

Permanence: Standard/removable; typically wipes or rinses off (always test first)

Mark Visibility: High-contrast, easy-to-see lines for general layout

Primary Use Cases: Punch lists, trim work, small-to-mid projects, framing/layout, roofing, masonry

Operating Conditions: Use in dry weather for best adhesion; re-snap after moisture if needed

Storage: Keep sealed and dry; avoid humidity to prevent clumping

Safety Notes: Avoid inhalation/eye contact; basic dust precautions recommended

Country of Origin: Varies by batch (check product label)

Manufacturer Part Number (MPN): Varies by supplier (commonly listed as ProChalk Glo-Orange 8 oz)

Q: Is the Glo-Orange chalk permanent or removable?
A: It’s standard/removable. Marks typically wipe or rinse away; always test first on porous or delicate finishes.

Q: When should I choose the 8 oz size over a 5 lb jug?
A: The 8 oz bottle is perfect for service calls, punch lists, and small-to-mid projects—easy to carry, quick to refill reels, and less waste on light-use days.

Q: What surfaces and conditions give the best results?
A: Dry wood, concrete, drywall, OSB/plywood, and subfloor sheathing in dry weather. Moisture and dust reduce adhesion and line longevity.

Q: Any tips to avoid mess and make cleanup easier?
A: Don’t overfill the reel, keep the cap closed, snap on clean, dry surfaces, and clean soon after use—start with a dry brush, then use a damp cloth if residue remains.