Montana’s Gravel Road Stabilization Experts


Liquid Magnesium Chloride is a naturally-occurring mineral produced through solar evaporation from the Great Salt Lake.

This naturally-occurring mineral is hygroscopic, which means it continuously absorbs moisture from the air, literally traps water and locks it in. This unique reaction stabilizes dirt surfaces, and, in turn, suppresses dust, The result is a hard-packed, dust-free road. In addition, an ion exchange happens between the positive and negative charges further binding the road together.

Not only is Magnesium Chloride approved by the EPA but it is also used in used in several environmentally sensitive areas such as U.S. Forest roads. Furthermore, Magnesium Chloride can help companies comply with PM-10 regulations, provide clean air, cleaner vehicles, cleaner homes, and promotes better health.

Cost Analysis shows a 30-46% reduction in total annual maintenance cost for treated test sections over the untreated test section. Magnesium Chloride also saves you money because there is a 42-61% reduction in total aggregate loss when unpaved roads are treated. Actual prices vary by location and quantity and are available by contacting Bozeman Road Dust Control.

  • Reduces the need for blading, watering and gravel replacement.
  • Reduces vehicle maintenance cost by lowering the levels of dust that clogs filters, bearings and machinery.
  • Provides a smooth, firm driving surface which increases vehicle productivity, decreases fuel consumption and saves time.
  • Prevents costly soil erosion caused by destructive wind conditions.
  • Reduces the cost of cleaning vehicles, equipment, property, vegetation and living sites.
  • Reduces replacement expenses of light duty truck windshields by controlling gravel spray in busy yard locations.
  • Unpaved roads
  • Construction sites
  • Parking lots
  • Fairgrounds
  • Horse arenas
  • Rodeo arenas
  • Baseball fields
  • Parks
  • Improve visibility, reducing the chance of accidents.
  • Reduces the chance of injury from flying stones and loose gravel around the work site.
  • Provides cleaner air, cleaner vehicles and cleaner homes.
  • Promotes better health and fewer complaints.

Maintaining dust-free roads is important in order to keep road users safe. Loose gravel can cause unnecessary vehicle damage such as chipped paint, cracked windshields, and broken headlights, reduced visibility due to dust can also be very hazardous to drivers. Furthermore, residents that live along dusty roads are at an increased chance of developing respiratory health problems. Without a stabilizing agent, unpaved roads and sites can be dangerous to operate on.

No. Magnesium Chloride is a non-toxic and very environmentally friendly product, and there’s no odor during or after spraying. Not only is Magnesium Chloride non-toxic, but it actually helps prevent airborne disease.

Within hours of application, Magnesium Chloride should settle into the road surface and not wash away under normal conditions. It is a safe, naturally occurring mineral that should not harm plants, fish or animals when used properly.

The product is most effective for approximately 3 to 6 months, therefore depending on the length of time the product is needed to last, a second application may be needed to continue to reduce the dust in your area.

We use DustGard as part of our dust control equipment. DustGard is a stabilizing agent derived from Great Salt Lake minerals and its magnesium chloride component attracts moisture from the air in order to keep roads damp. When applied consistently each season, DustGard penetrates the road base and significantly improves stability. Since magnesium chloride is composed of organic minerals, it is non-toxic and completely safe for humans and animals. A DustGard Brochure is available for your inspection. A Magnesium Chloride Material Safety Data Sheet is available for your inspection.

Video of Bozeman Road Dust Control applying magnesium chloride to a dirt road.

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