Irwin STRAIT-LINE® Marking chalks have a newly engineered flip-top cap that keeps the chalk in the bottle where you want it and stops it from spilling out in areas that you don't. The flip-top cap, available on all Irwin STRAIT-LINE® chalk bottles, seals the chalk in an air-tight chamber, keeping out moisture and reducing the risk of clumping.
Color | : | White |
Compositions | : | Calcium Carbonate, Silica |
Form | : | Powder |
Odor/Scent | : | Odorless |
Package Size | : | 5 lb |
Relative Density | : | 2.7 to 2.71 |
Specific Gravity | : | 2.7 to 2.71 |
pH Range | : | 8.5 to 9.5 |