Interactive

Drag the pavement colder.

Pavement temperature — not air temperature — decides what actually melts. Watch which materials keep working.

−8°Pavement °C
Recommended approach

 

Liquid brine (anti-icing)Sprayed on dry pavement before snowWorks
Rock saltLowest cost, general de-icingWorks
Pre-wet saltSalt wetted with brine as it spreadsWorks
Magnesium chloride blendEntrances, steps, colder daysWorks
Calcium chloride blendDeep-cold spot treatmentWorks
Sand / gritTraction only — does not meltWorks

Approximate practical working ranges. Real performance depends on sun, traffic, product blend and application rate.

Three tools

Before, after and when nothing melts.

Good ice control is timing first, material second.

Brine truck applying anti-icing lines to an empty lot before a storm
Before · Anti-icing

Stop the bond

Brine on dry pavement hours before snow keeps it from freezing to the surface. Less salt, faster clearing.

Salt spreader truck treating a cleared parking lot at dusk
After · De-icing

Melt what is left

Salt or blends spread after plowing, at a rate set for the temperature and the amount of ice.

Crew clearing a storefront sidewalk with a sidewalk tractor and applying ice melt
Extreme cold · Traction

Grip, not melt

Sand or grit when it is too cold for salt, plus hand spot-treatment on steps, ramps and doorways.

Reference

Which material, when?

Approximate guidance — performance depends on pavement temperature, sun, traffic and the product.

MaterialBest forWorks down to (approx.)Notes
Rock salt (sodium chloride)General de-icing on lots and walks−9 to −12 °C pavementLowest cost; slows sharply in deep cold
Pre-wet saltFaster start, less bounceSlightly colder than dry saltSalt sprayed with brine as it is spread
Liquid brineAnti-icing before a stormDepends on the blendUses far less salt when conditions suit
Magnesium / calcium chlorideColder days, steps, entrancesWell below rock saltHigher cost; used selectively
Sand / gritTraction in extreme coldAny temperature (does not melt)Needs spring sweeping
Responsible salt

Safer surfaces, less salt.

Over-salting damages concrete, landscaping and local waterways — and does not make a surface safer. Many Canadian municipalities and property managers now ask how a contractor manages salt.

Calibrated spreaders

Spreaders checked so material goes down at the intended rate.

Rate by conditions

Application rates set by temperature and ice type, not one setting all winter.

Sensitive areas

Less salt near creeks, wells and planting beds, with traction alternatives.

Spring sweep

Grit and leftover material swept up when the season closes.

Ask about salt-management training, such as the Smart About Salt program used by many Ontario contractors and property managers.

Book before winter

Routes fill before the first snowfall.

Site walks, staking and route planning happen in the fall. Lock in your trigger depth, service window and contract now — not after the first storm.

—Days until fall route planning closes (Nov 1)Build Winter Plan