Keson 105B ProChalk Standard Blue 5 lb Marking Chalk:

The Keson 105B ProChalk Standard Marking Chalk is the ideal choice for professionals and DIY enthusiasts who need reliable, easy-to-clean chalk lines for layout work. Designed for both interior and exterior applications, this standard-grade chalk delivers consistent performance and brilliant color visibility. Keson’s ProChalk Standard series is formulated for basic chalk line needs that are easier to clean up or allow to wear away naturally. This 5 lb jug of ultrafine blue chalk ensures smooth flow for quick reel filling and sharp, precise lines every time.

Key Features

• Standard Grade Formula: Perfect for temporary markings that can be cleaned up or fade naturally.
• Brilliant Blue Color: Provides strong, sharp lines for excellent visibility.
• Ultra-Fine Texture: Ensures smooth flow and easy reel fill-up.
• Consistent Performance: Formulated for uniform color tones and reliable line quality.
• Large Capacity: 5 lb jug for extended use on multiple projects.

Specifications

• Brand: Keson
• Model: 105B
• Series: ProChalk Standard
• Color: Blue
• Weight: 5 lb
• Composition: 85–90% Calcium Carbonate, 10–15% Ultramarine Blue, 0.1–1% Silica
• Type: Standard Marking Chalk
• Temporary/Permanent: Temporary

Applications

• Interior Layout: Ideal for marking lines for framing, paneling, and flooring.
• Exterior Projects: Suitable for roofing, siding, and general construction tasks.
• General Use: Perfect for any job requiring temporary, high-visibility markings. The Keson 105B ProChalk Standard Blue Marking Chalk combines quality, ease of use, and affordability, making it a trusted choice for professionals and hobbyists alike.