Salt is cheaper and works for most winter days in Sarnia, but ice melt is better during deep freezes, on decorative concrete, and in homes with pets. Many homeowners use salt for regular snow and switch to ice melt when temperatures drop below –10°C or when safety matters more than cost.
Comparison Chart
| Feature | Rock Salt | Ice Melt |
|---|---|---|
| Lowest Working Temperature | About –7°C | –15°C to –30°C (brand dependent) |
| Cost per 20kg Bag | $7–$12 | $15–$30 |
| Pet Safe | No | Yes (if labeled pet-safe) |
| Concrete/Grass Damage | Can cause damage over time | Gentler when used correctly |
| Best Use | Normal winter days | Extreme cold, pets, decorative concrete |
What Is Rock Salt?
Rock salt is made from sodium chloride and is the most common product used in Sarnia to melt ice. It is affordable, easy to spread, and works well when temperatures are just below freezing. The downside is that it can damage concrete, lawns, and metal over time, especially if used daily.
What Is Ice Melt?
Ice melt is made from products like calcium chloride or magnesium chloride. It melts ice faster and still works in much colder weather than salt. Many blends are labeled pet-safe and work well on stone, interlock, and new concrete driveways.
Salt vs Ice Melt — Key Differences
- Salt stops working in deep cold – Ice melt still works when temperatures fall below –10°C
- Salt is cheaper – Ice melt costs more upfront but you often use less of it
- Salt can damage concrete and grass – Ice melt is safer when spread lightly and correctly
- Ice melt can be pet-friendly – Salt can burn paws and irritate skin
When to Use Each in Sarnia
- Use salt on normal winter days – Works best around –1°C to –7°C
- Use ice melt during cold snaps – Keeps working when temperatures drop below –10°C
- Use pet-safe ice melt if you have animals – Prevents paw irritation and chemical burns
- Use ice melt on interlock or stamped concrete – Protects surfaces from cracking and white salt stains
Cost in Sarnia
Salt is the cheaper option — perfect for large driveways or frequent use. Ice melt is more expensive but safer for surfaces and animals. Some homeowners use salt for the main driveway and save ice melt for walkways or steps where people or pets walk most.
Can You Mix Them?
Yes, and many snow removal companies in Sarnia already do. They’ll spread salt during regular weather and switch to or mix in ice melt during colder storms. This method lowers costs while still working in freezing conditions.
Pros and Cons
- Salt Pros – Cheap, easy to find, works fast
- Salt Cons – Stops working in deep cold, damages grass and concrete
- Ice Melt Pros – Works in colder weather, safer for pets and surfaces
- Ice Melt Cons – More expensive, some types leave residue
Final Word
In Sarnia winters, salt is great for everyday snow and slush, but ice melt is the safer choice for deep freezes, children, pets, and decorative driveways. The best approach is to have both — salt for regular storms and ice melt for when it really matters.