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Anti-Icing Chemicals: Stopping Ice Before it Starts
October 17, 2011 -
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I’m Dan Hounsell, editor of Maintenance Solutions magazine. Today's topic is, applying anti-icing chemicals.
Professionals involved in snow and ice management have begun to move away from using exclusively granular materials and in many cases have adopted liquid anti-icing materials as the product of choice. Why? As a pre-treatment on roadways, parking lots, and walkways, anti-icing products tend to perform better in preventing snow and ice from bonding to paved surfaces.
Liquid anti-icing products coat the surface of roads and parking lots. Once precipitation starts, the melting process begins. The primary objective of these chemicals is to keep snow and ice from bonding to the pavement, which provides better traction for automobiles and allows for easier removal of snow and ice down to the paved surface.
Salt, also know as sodium chloride or NaCl, is the most common and inexpensive deicer and has been the industry standard for almost a century. Unfortunately, NaCl as a deicing agent can harm the environment, including landscaped areas near pathways and parking lots, and it can cause erosion.
Today, it is common for crews to wet NaCl with a liquid agent to increase its effectiveness and reduce the amount needed. Converting rock salt to brine also is more common. Crews should never use NaCl products around electrical boxes, structural materials or anywhere safety is a priority because of the corrosion it can create.