Features
Blackline water resistant chalk will not wash away, even after heavy downpours. It will not scuff off, even in a high traffic area. And it will not blow away even when cutting with circular saws. Blackline chalk is perfect for wet or dry applications, simply remove standing or excess water then snap line. It saves time because layouts and pour lines will never have to be redone. Available in either Red or Black, 5 lb. bottles.