
Irwin Strait-line 65101zr Marking Chalk, Blue, Temporary
Key Features
AI Generated- Compatible with diverse construction materials for flexible applications.
- Fine‑grained chalk delivers consistent line quality on any surface.
- The chalk’s visibility aids in fast, accurate layout adjustments.
- Buy the non‑toxic chalk at Busy Beaver in Delmont for safe, reliable marking.
Local Delivery
Shipping
Return Policy
Easy returns available. Eligibility rules may apply.
Irwin Strait-Line blue marking chalk is a professional-grade powder chalk designed for contractors and commercial users who need clear, temporary layout lines on any job site material. The 5 lb. bag provides reliable marking performance for layout changes and reference points.
This non-toxic chalk produces sharp, easily readable lines using fine chalk particles that stand out clearly for quick visual reference. Whether you're establishing temporary guidelines or marking layout changes, Strait-Line chalk delivers the visibility and ease of use that professionals depend on.
Features and Benefits
- Innovative flip-top cap: The airtight design keeps chalk sealed in the bottle where you want it, reducing moisture exposure and clumping so the chalk stays fresh and ready to use.
- Hi-flow nozzle cap: Designed for quicker, cleaner chalk fills with improved flow, especially helpful when working with higher-density permanent staining chalks.
- Fine chalk particles: Produces sharp, crisp lines that are easy to read and ideal for precise layout work.
- Non-toxic composition: Safe for use on interior and exterior surfaces without harmful concerns.
- Easy to use: Snap cap design makes storage and handling straightforward on the job site.
Specifications
- Brand: Irwin
- Model: 65101ZR
- Color: Blue
- Weight: 5 Lb.
- Type: Temporary marking chalk
- Composition: Non-toxic powder





















