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4-Ounce Blue Standard Marking Chalk Refill, Powder
- Mfg.#
- 64801
- Sku#
- 1019314
- Interior or exterior use
- Marks are temporary
- Provides great visibility
- Micro-fine for more marking power
* Estimated stock levels as of Wed, Apr 1, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.
Description
The IRWIN® STRAIT-LINE® chalk range has a wide range of permanencies and colors. Whether working indoors or out, on finished surfaces or in extreme conditions, IRWIN® STRAIT-LINE® has the ideal chalk for every job. Dust-off chalk is temporary chalk that can be used to mark interior walls and trim and then be wiped away cleanly. Permanent staining chalk is great for extreme outdoor conditions because it can withstand harsh weather conditions and months of jobsite wear.
Specifications
General
| Applicable Materials | Wood, Drywall and Concrete |
|---|---|
| Color | Blue |
| Color Family | Blue / Purple |
| Composition | Calcium Carbonate, Ultramarine Blue, Silica |
| Form | Powder |
| Media | Water, Dry Chemical, Carbon Dioxide |
| P H Range | 8.5 - 9.5 |
| Specific Gravity | 2.7 - 2.71 |
| Type | Marking Chalk |
Manufacturing Details
The following information is subject to change without notice
| Country of Origin | China |
|---|---|
| Prop 65 Warning |
WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
|
Dimensions
| Size | 4 oz |
|---|
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