Keson ProChalk Ultimate Permanent Waterproof Blue Chalk Dye, 5 oz.

Keson ProChalk Ultimate Permanent Waterproof Chalk Dye (5 oz.) - Blue

Keson ProChalk Ultimate Permanent Waterproof Chalk Dye is a professional-grade marking solution designed for demanding layout, construction, surveying, and fabrication applications. The blue dye produces a clearly visible mark that helps improve line accuracy and jobsite readability, while its waterproof formulation is made to resist moisture and maintain marking performance in challenging conditions.

Formulated for use with compatible chalk line systems, this Keson ProChalk dye is a practical choice when temporary marking chalk is not durable enough. The permanent formula helps marks remain visible on appropriate surfaces after exposure to water, making it useful for outdoor work, concrete layout, masonry, framing, and general construction tasks. Its concentrated format supports efficient refilling and dependable performance during repeated use.

The Keson ProChalk Ultimate Permanent Waterproof Chalk Dye is supplied in a convenient 5-ounce bottle and comes in blue for easy identification and contrast. Follow the instructions for your chalk reel or marking tool, and test the dye on the intended surface before full application. This product is intended for professional and DIY users who need consistent, high-visibility marks with enhanced resistance to wet conditions.

What's Included

• One 5-ounce bottle of Keson ProChalk Ultimate Permanent Waterproof Blue Chalk Dye

Fitment

Compatible with suitable chalk line reels and marking tools designed for liquid or refillable chalk dye. Confirm compatibility with the manufacturer’s equipment before use.

Features:

• Permanent Waterproof Formula: Helps marks remain visible when exposed to moisture and wet jobsite conditions.
• High-Visibility Blue Color: Provides clear contrast for layout, construction, surveying, and fabrication work.
• Professional Chalk Dye: Designed for demanding applications where standard temporary chalk may not provide sufficient durability.
• Convenient Refill Size: The 5-ounce bottle supports efficient replenishment of compatible chalk line and marking systems.