KESON ProChalk® Semi-Permanent Black Marking Chalk (227g / 8oz)

Keson ProChalk Semi-Permanent is designed for applications requiring a durable, weather- and water-resistant marking line. Its stronger formulation provides excellent visibility and adhesion, helping lines remain in place through demanding exterior conditions before naturally wearing away over time. With a Permanence Rank of 3, it is suitable for exterior layouts, concrete layouts, roofing and metal fabrication. ProChalk Semi-Permanent delivers consistent marking performance where temporary chalk needs to remain visible for longer, making it a reliable choice for construction and trade applications. Proudly made in the USA.

Features: 

• Provides weather- and water-resistant marking.
• Designed to remain visible for longer.
• Suitable for demanding exterior applications.
• Ideal for concrete layouts, roofing and metal fabrication.

Specifications:

• Colour: Black
• Permanency: Semi-Permanent
• Permanency Rank: 3
• Application: Exterior
• Weight: 227g (8oz)

Warning: This product can expose you to chemicals including Crystalline Silica which is known to the State of California to cause cancer and Carbon Black which is known to cause reproductive harm. For more information, visit www.p65Warnings.ca.gov