Transportation - Route Sales - Pavement Maintenance

(559) 486-0220



Long Lasting And Cost Effective.

Your goal is cost-effective dust control on your roads. Unfortunately, most dust suppressants make you pay a heavy price for effectiveness. Some are highly corrosive to your vehicles, equipment and steel road structures. Some cost you more in the long run because they last for only a short time and require repeated applications. And some dust suppressants pose a risk to the environment.

But there is a dust suppressant that helps you avoid all these problems. Cargill's Dust-Off Dust Suppressant. Dust-Off is the best choice for your operation because it provides a less-corrosive, longer-lasting treatment that actually helps keep roads in better shape. And it's environmentally friendly.


Calcium chloride and ordinary magnesium chloride dust suppressants can be highly corrosive. Once they mix with water and road soil, they form a mud that's more corrosive than road salt. This mud sticks to vehicles and steel surfaces and can accelerate rust and corrosion damage. With Dust-Off, you get dust control that's just as effective as calcium or ordinary magnesium chloride but with much less corrosion. Dust-Off, a superior magnesium chloride based formula, actually helps protect your vehicles, equipment and steel road structures from rust and corrosion. Think how much money that can save down the road.


Most dust control agents work in basically the same way. They dampen and penetrate the unpaved surface causing road fines and aggregate particles to hold together. Dust-Off performs this job better than most other dust suppressants because its magnesium chloride formula is hygroscopic. That means it retains moisture better than water alone, which quickly evaporates. So it could cost you many times more to get the equivalent dust control that only one application of Dust-Off delivers.* And one application of Dust-Off usually lasts all season.


The principal ingredient in Dust-Dff is derived naturally through solar evaporation of sea water. It has been evaluated and found to be environmentally acceptable in a dust control study done by the Environmental Protection Agency and U.S. Army Constru ction Engineering Research Laboratory.** Plus, it has been approved for use by the U.S. Forest Service and is in use in several Western national forests. Most other dust suppressants can't make these safety claims. For example, oils and emulsions can run off roads and kill roadside foliage, or contaminate groundwater, lakes and streams.


Dust-Off comes ready to apply, so there's no time wasted in mixing or preparation. What's more, after an application of Dust-Off, you can travel on treated roads immediately, even with heavy machinery. For your added convenience, your local authorized Dust-Off distributor/dealer is available to help you with all phases of application.


Increased Safety:

Dust can impair visibility on dirt roads, increasing the risk of accidents. Dust- Off helps make travel on unpaved roads safe by effectively suppressing dust and stabilizing road material. So vehicles traveling on dust-free roads can experience improved visibility as well as reduced travel time. This saves time and money.

Cleaner Air. For people living along dirt roads, dust can mean grimy houses, gray laundry and dust covering everything. Dust-Off controls these problems and may help meet government health based air quality standards for particulate matter.

Reduced Maintenance. VehiIcles traveling on dirt roads can be adversely affected by dust. Dust-off may help lessen repeated maintenance and its ensuing consts by controlling dust and reducing wear and tear on belts, filters and internal engine parts.

Better Road Stabilization. Dust-Off dust suppressant helps cut down on road maintenance. Just apply it after grading and crowning the road for proper drainage. Depending on the type of road treated, a single application sinks deep, creating a hard, compact surface that resists abrasion, potholing, rutting and loss of aggregate.

Improved Productivity. When dust is kicked up by vehiclesit also can carry mites. Both dust and mites harm plants. Reduce dust and you can reduce harm to crops.


The benefits of Dust-Off say it all:

superior dust control

road stabilization

reduced corrosion

less maintenance

Dust-Off is the comprehensive solution to dust control.

*"Dust Control Compound Makes Fans of Users." Forest Industries - June, 1986

**"Unpaved Road Dust Control Study," Fort Carson, CO - Final Report. Oct. 1980 - Oct. 1981.


Defects that develop continually in unpaved roads can waste up to 75% of a county's annual road budget. When potholes, rutting, washboards and frost damage are repaired, there's still the problem of dust control. And where there's dust, there's sure to be continued road damage occurring. What's needed is an effective road surface stabilizer -- Dust-Off Anticorrossive Dust Suppressant. Dust-Off helps stabilize road surfaces and cuts down on expensive maintenance such as frequent blading and regravelling.


Magnesium chloride performs as well or better than calcium chloride as a dust suppressant. That claim is confirmed by the toughest test of all: how it performs for the customer.

The U. S. Army Corps of Engineers has tested magnesium chloride for use on assault airstrips and unsurfaced tank trails. The surface produced was a tight, macadam-like surface when compacted. The army considers magnesium chloride to be the most economically known product for contorlling dust from tracked vehicles on cushionless (sand and gravel) soils.(2)

The U.S. Forest Service has found magnesium Chloride to be an excellent road stabilization agent and dust suppressant. The results of dust treatment with magnesium chloride received high marks in all areas.(3)

In tests for the MX missile program, the Boeing Company found that hygroscopic materials did the best job as dust pallatives, and of this group, magnesium chloride was preferred.(4)

In a report distributed by the Technology Transfer Assistance Program of the Missouri Highway and Transportation Department, magnesium chloride is said to be "more effective than calcium chloride solutions for increasing surface tension, resulting in a very hard road surface."(1)

Recommendations like this indicate that Anticorrosive Dust-Off is the proven performer when it comes to road stabilization and dust control. For your, that can mean reduced maintenance costs accross the board.

"Guidelines for Cost-effective Use and Application of Dust Palliatives." Roads and Transportation Association of Canada, Oct. 1986

"Dustproofing Unsurfaced Tank Trails, Grafenwohr Training Area, Federal Republic of Germny, June 15-29, 1985." U.S. Army Corp. of Engineers Miscellaneous Paper GL-86-40, 1986

"The Use of Magnesium Chloride for Dust Treatment and Soil Stabilization of Forest Service Roads" Eugene D. Hansen; USDA Forest Service Intermountain Region, Ogden, Utah, 1982.

The Boeing Company; Report #D295-10567-1.

Application is easy

Dust-Off-' comes ready to apply, so there's no time wasted mixing or preparing it. And after treatment, equipment - even heavy machinery - can travel on the road right away.

Spreader trucks with controllable pressure spray bars are best for applying Dust-Off. Most roads need little preparation before application, so Dust-Off helps save even more. For optimum results, the road surface should contain a combination of aggregate and fines. Then, scarify to three to four inches, or a depth sufficient to remove potholes, washboarding, and furrows.

Blade the road to a modified "A" crown, or to an appropriate slope for water drainage. Roads subject to very heavy traffic should be compacted after application. Oil-base treated surfaces may require special pre-treatment for positive penetration.

Wet the road thoroughly and apply Dust-Off according to these specifications:

APPLICATION GUIDE Width of Spread     Gallons per Square Yard     Gallons per Mile     Tons per Mile
12 ft     1/2     3,500     18.72
16 ft     1/2     4,700     25.14
20 ft     1/2     5,900     31.55
24 ft     1/2     7,000     37.44
30 ft     1/2     8,800     47.06
1 Acre     1/2     2,420 Gal/A     12.94 Tn/A

TYPICAL LIQUID ANALYSIS Magnesium (Mg++)     7.5%
Chloride (CI-)     21.0%
Sulfate (SO+)     3.0%
Potassium (K+)     0.7%
Water     66.2%
pH     6.5
Specific Gravity (at 60/60 F)     1.301
Pounds/Gallon     10.8

For your convenience, a local authorized Dust-Off distributor/dealer can handle all phases of application. For more Information about Dust-Off call us at 1-559-486-0220.
Dust-Off and the Environment

A detailed study was conducted in 1989 by an Independent environmental consulting firm on the environmental Impact of Dust-Off. The study shows that when Dust-Off is used properly, and with appropriate precautions, it poses minimal environmental risk. It is recommended that Dust-Off not be applied if a domestic drinking water supply source is less than 25 feet from the surface or on roads immediately adjacent to a low-volume stream or pond used as a domestic water supply where the Dust-Off applied could be washed into the stream or pond.

Dust-Off should not be applied directly to plants, since it can act as a defoliant. There will be some accumulation of Dust-Dff in roadbeds and other areas receiving repeated applications and where there is no disturbance of the soil. The possible accumulation in these locations may affect chloride sensitive plants.

Although the composition of Dust-Off is of extremely low human toxicity, Dust-Off may cause mild skin irritation if it comes in contact with skin. Normal precautionary measures for the safe handling of liquids should be observed, e.g. goggles and flu shing of skin contact areas with fresh water.