Calcium chloride and salt blend. Fast acting formula. Melts down to -15 degrees F. Morton Action Melt is our fast acting solution to melt ice and snow faster and longer than plain salt in extreme winter temperatures. It's what you expect from Morton - a brand you trust. 25lb Bag covers 738 square feet (All square footage number are approximate). Or 4 single-car driveway applications (A single car driveway is considered to be around 200 square feet). www.mortonsalt.com. how2recycle.info.