While potassium chloride is good for the environment it damages the concrete and typically costs 3 5 times more.
Calcium chloride on concrete for ice melt.
Calcium chloride works 4x faster than rock salt by generating exothermic heat that instantly melts even the thickest snow ice with maximum safety and little effort.
Proven safe when applied as directed to quality concrete surfaces melt exhibits the following properties.
Earthborn elements snow ice melt pellets 1 gallon pet plant safe ice melter concrete safe 90 pure calcium chloride fast acting exothermic heat more effective than rock salt 3 9 out of 5 stars 63.
No other ice melter out performs calcium chloride pellets.
Melts snow ice 4x faster.
Experts agree that calcium chloride is the best ice melt for concrete surfaces.
Another good de icer is cma or calcium magnesium acetate which doesn t wash away as easily as the others and has a lower environmental impact.
This is a hygroscopic compound.
A calcium chloride ice melt melts ice and snow down to temperatures of 25 f safe to use on concrete and vegetation when used correctly.
Being a hygroscopic compound it absorbs moisture and thereafter starts dissolving.
Melts down to 25 f.
This heat quickly melts the ice and snow thus turning it into water.
The dissolving process is exothermic and generates heat of up to 60 degrees celsius.
Good ice melt choices for concrete are calcium chloride and magnesium chloride.