ProGuard™ CAL is a high performance dust control and soil stabilization agent designed to extend the life of your gravel roads and surfaces. Composed of calcium chloride (CaCl2), ProGuardTM CAL controls dust on gravel roads by attracting moisture from the air to keep surfaces damp, even in hot, dry conditions.
ProGuard™ CAL binds fine dirt and aggregate particles to keep surfaces stable and dust free. ProGuard™ CAL can be used on gravel roads, parking lots and driveways as well as in mining operations and construction areas.
A high performance dust control agent, ProGuard™ CAL is designed to:
ProGuard™ CAL is free of toxic metals and substances. Application rates vary based on soil type and traffic volume; typical application rates range from 1.0 to 2.3 liters per square meter / 0.2 to 0.5 gallons per square yard. Follow up applications rates are applied at half the initial dosage.
| Appearance | Clear colourless |
| % CaCl2 (w/w) | 35% |
| Specific Gravity (15oC/60oF) | 1.354 g/mL |
| Weight (15oC/60oF) | 10.30 lbs/gal |
| Calcium Chloride | 35% |
| equivalent to | |
| Magnesium Chloride | 30% |
Calcium chloride and magnesium chloride solutions cannot be compared at equivalent percentages as they have different molecular weights. Molecular weight conversion has been universally adopted in most US States and Canadian provinces.
A study conducted by Colorado State University on the “Relative Effectiveness of Road Dust Suppressants” concluded that a 42% reduction in total aggregate loss was achieved when unpaved roads were treated with calcium chloride.
