Irwin Hanson 65102 Strait-Line Permanent Marking Chalk 5 lb Red

The Irwin Hanson 65102 Strait-Line marking chalk is a professional-grade permanent marking solution designed for exterior applications and long-lasting lines. This 5-pound container of red chalk creates bold, weather-resistant marks that won't wash away in rain or harsh conditions.

Key Features:

• Permanent formula ideal for outdoor use and long-term project marking
• 5-pound container provides extended use for large projects
• Vibrant red color ensures high visibility on various surfaces
• Weather-resistant formulation withstands rain and exterior conditions
• Compatible with standard chalk line reels and boxes
• Perfect for construction, landscaping, and permanent layout work

This permanent marking chalk is engineered for professionals who need lines that stay visible throughout the entire project lifecycle, making it ideal for foundation work, concrete layouts, roofing, and other applications where marks must remain visible despite weather exposure.