Irwin Straight-Line Permanent Chalk Powder Blue 4 lb.
IRWIN STRAIT-LINE Permanent Staining Chalk is great for extreme outdoor conditions because it can withstand harsh weather conditions and months of jobsite wear. Chalk containers are filled by weight not volume.
- 4-lb Chalk Line Refill
- Crimson Red Permanent Staining Marking Chalk
- For Exterior use
- Visible after weeks of weather exposure and jobsite wear
- Stains Surface and Reduces need for spray sealant