Application width Studies show that snow melts faster when salt is applied in narrow strips. The amount of snow melted over a long period of time is the same, however, regardless of application width. It can then absorb heat and increase the melting rate. To remove glare ice or keep snow in a plowable condition, you may want to apply chemicals across a broader portion of the road. Time of Application Timing is the most important factor in successfully clearing snow by chemical treatment.
Early application is critical.
Spreading a small amount of de- icer when snow is loose and unpacked melts a little snow and turns the rest to slush. This lets plows remove it easily. It is better to reapply chemicals as needed than to over-treat initially. Do not plow off the chemical until it has a chance to melt the snow and ice. A major concern in using chemicals for winter road maintenance is environmental impact.