Incorporate Blue Line Chalk Colorant

What happens here

Take a container of blue line chalk. Carefully add a small amount of the blue line chalk powder directly onto the spackle paste that was previously dispensed on the cardboard. The video suggests starting with a small quantity of colorant, as you can always add more to achieve a deeper blue tint if desired. The chalk acts as a colorant, providing a temporary blue tint to the spackle.

Goal: Introduce a colorant into the spackle to make it visible.