I have never used concrete. After you purchase it, how do you mix the components correctly in small amounts? Answered
I only need to mix about 8 ounces of the stuff at a time for an art project. The project requires putting concrete on cardboard sculptures that are essentially cardboard cutouts of a dog. So, the sculpture is pretty thin. What can I do to put the concrete on just the back of the cutout properly? The sculpture is about 20 inches tall and 3-5 inches wide.