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Product Attributes
Brand : Irwin®
Type : Permanent
Color : Black
Capacity : 5, 5 lb
Package Type : Container
Packing Type : Container
Product Documents
Product Features
- The flip-top cap seals the chalk in an airtight chamber, keeping out moisture and reducing the risk of clumping
- The flip-top cap seals the chalk in an airtight chamber, keeping out moisture and reducing the risk of clumping
- Irwin® Strait-Line® introduces its new Hi-flow nozzle cap for improved chalk flow on permanent staining chalks
- Irwin® Strait-Line® introduces its new Hi-flow nozzle cap for improved chalk flow on permanent staining chalks
- The cap allows for quicker chalk fills and less clumping when using higher-density permanent staining chalks
- The cap allows for quicker chalk fills and less clumping when using higher-density permanent staining chalks
- Irwin® Strait-Line® marking chalks have an innovative flip-top cap that keeps the chalk in the bottle where you want it
- Exterior use
- For use on a variety of surfaces including wood, drywall, concrete, stone and metal
- Permanent colors, especially black and red, produce long lasting lines that won't fade
- Visible after weeks of weather exposure and jobsite wear
- Visible after weeks of weather exposure and jobsite wear
- Proprietary formulations for dark, sharp lines and reliable performance
- For use on a variety of surfaces including wood, drywall, concrete, stone and metal
- Micro-fine for more marking power
- Permanent colors, especially black and red, produce long lasting lines that won't fade
- Calcium carbonate, black iron oxide, silica-crystalline quartz compositions
- Proprietary formulations for dark, sharp lines and reliable performance
- 8.5 - 9.5 pH
- Micro-fine for more marking power
- Calcium carbonate, black iron oxide, silica-crystalline quartz compositions
- Powder form
- 3.3 - 3.35 Relative density
- Produces color line that remains visible for weeks
- Up to 2 months permanence
- 3.3 - 3.35 Relative density
- Weather resistant lines remain visible after weeks of weather, sun and jobsite wear and tear
- Produces color line that remains visible for weeks
- Up to 2 months permanence
- Weather resistant lines remain visible after weeks of weather, sun and jobsite wear and tear


