105R ProChalk® Marking Chalk – Semi‑Permanent Red, 5 lb

The 105R ProChalk® Semi‑Permanent Red Marking Chalk is a professional‑grade layout solution designed for applications that require enhanced durability and long‑lasting visibility. Supplied in a 5 lb bulk container, this semi‑permanent chalk is ideal for demanding jobsites where markings must remain visible through extended work cycles, weather exposure, and increased activity.

The bold red color provides strong contrast on a wide range of surfaces, making it easy to identify critical layout lines even in challenging conditions. ProChalk®’s semi‑permanent formulation is engineered to resist fading, light wash‑off, and foot traffic longer than standard chalk, while still allowing eventual removal through cleaning or natural wear. This makes it an excellent choice for projects that extend beyond a single workday.

Designed for smooth flow and consistent performance, this chalk works seamlessly with standard chalk reels and chalk lines. Its fine, uniform powder supports crisp snap lines and helps minimize clogging. The bulk 5 lb package supports high‑volume professional use, reducing refill frequency and improving efficiency on large or active jobsites.

Key Features

• Semi‑permanent chalk formulation for extended mark visibility
• Bright red color delivers high contrast and clear snap lines
• Resists fading, weather exposure, and moderate jobsite traffic
• Designed for professional layout and alignment work
• Smooth, consistent flow for clean line release
• Compatible with standard chalk reels
• Bulk 5 lb container ideal for high‑volume use

Specifications

• Manufacturer Model: 105R
• Product Name: ProChalk® Marking Chalk
• Chalk Type: Semi‑permanent
• Color: Red
• Net Weight: 5 lb
• Form: Powder
• Compatibility: Chalk reels and chalk lines
• Grade: Professional

Applications

The 105R ProChalk® Semi‑Permanent Red Chalk is well suited for a wide range of professional applications, including:

• Construction and framing layout
• Exterior and interior alignment tasks
• Concrete and masonry projects
• Roofing and structural layout
• Industrial and commercial jobsite marking
• Long‑duration or multi‑day projects

Why Choose ProChalk® Semi‑Permanent Red Chalk?

The 105R ProChalk® Semi‑Permanent Red Marking Chalk offers the ideal balance between durability and removability for professionals who need markings to last longer than standard chalk without becoming fully permanent. Its high visibility, reliable performance, and bulk packaging make it a smart choice for crews managing complex or extended projects.

Built for consistency and jobsite reliability, this chalk helps ensure layout accuracy from start to finish.