Dusty Blends in Cold Weather: Managing Fertilizer Dust in the Off Season

When temperatures drop and spreaders slow down, many fertilizer facilities finally get a chance to breathe.

Or at least, they should.

In reality, winter can be one of the dustiest seasons of the year in fertilizer plants and blend sheds. Doors and windows stay closed to keep out the cold. Air moves less. Dry, heated indoor air makes fines even more airborne. Every transfer, every drop, and every conveyor starts to feel like a small dust storm.

That dust is more than a nuisance:

• It reduces product quality and customer satisfaction
• It eats into production yields as material literally floats away
• It increases housekeeping needs and equipment wear
• It can contribute to respiratory exposure and combustible dust risk
• It can strain relationships with neighbors and regulators

The off season is the ideal time to get ahead of dust instead of chasing it.

In this article we will cover:

• Why fertilizer dust is often worse in winter
• How dust affects safety, product quality, and profitability
• Where DustAid agricultural dust control fits into the picture
• How Supply Solutions can help you choose between bio-based, synthetic, and paraffinic options
• Practical steps to manage dust in the off season without shutting down your operation

The goal is simple: cleaner air, cleaner product, and a safer, more efficient plant when spring hits full speed.

Why Fertilizer Dust Often Gets Worse in Cold Weather

Closed doors, dry air, and trapped dust

In summer, many facilities rely on open doors, natural air movement, and fans to dilute dust. In winter:

• Doors and windows stay shut to keep heat in
• Fans may be used less, especially if they pull warm air out
• Heated indoor air often becomes very dry

Dry air increases the tendency of fine particles to become and stay airborne rather than settling quickly. Every transfer point, drop, and pile adjustment becomes more visible and more persistent.

The same tonnage moving through the system that was “tolerable” in summer can feel overwhelming in January.

Winter is blend season, not vacation

For many retailers and co-ops, winter is not a quiet period; it is:

• Blend design and pre-building season
• Inbound shipment and storage season
• Maintenance and system adjustment season

That means more:

• Bulk receiving
• Conveyor operation
• Load-out of trucks and tenders on short weather windows

All of this activity happens in a more closed, confined environment than in the warmer months, which magnifies every dust source.

More time indoors for workers

When operators and drivers are inside more often, they spend more time in areas with:

• Accumulated dust on beams, ledges, and equipment
• Airborne fines, especially near transfer points
• Fewer open-air breaks to “clear the lungs”

Even if measured dust levels are similar season to season, winter can feel harder on crews simply because so much work happens indoors near the sources.

Why Dust Is Not Just a Housekeeping Problem

It is tempting to think, “We’ll sweep more,” or “We’ll just blow it down when we have time.” But fertilizer dust affects several areas of the business at once.

Safety and health

Reviews of fertilizer dust control in industry point out that uncontrolled dust can contribute to:

• Combustible dust risk in some facilities
• Reduced visibility
• Slips and falls when fines accumulate on floors
• Respiratory irritation and potential exposure to trace contaminants

DustAid and similar dust suppression systems are designed to reduce airborne dust and can help lower explosion potential, improve facility hygiene, and reduce worker exposure when properly applied as part of a broader safety program. Supply Solutions, LLC+2mintech.com+2

Regulatory and safety guidance emphasize that dust control is part of an overall program that includes housekeeping, ventilation, equipment maintenance, and training. Your dust control plan should always be aligned with your company safety policies and any applicable regulations.

Product quality and customer experience

Fertilizer dust does not just stay in the plant. It follows the product.

Research and industry experience highlight several quality concerns tied to excess fines:

• Segregation in blends as smaller particles separate from larger ones
• Application streaking or uneven spread patterns when fines dominate
• Coated fertilizers that arrive dusty, leading to customer complaints
• Loss of micronutrients or additives that were meant to be evenly distributed

MinTech, the manufacturer of DustAid, notes that dust control coatings are designed to maintain material integrity and improve marketability by controlling dust throughout manufacturing, transportation, and application. mintech.com+1

In other words, the less dust you generate and ship, the more consistent and professional your product looks and performs.

Production yields and efficiency

Every pound of dust that leaves a conveyor and never makes it into a truck is lost revenue.

Industry articles on fertilizer dust challenges point out that uncontrolled dust can:

• Reduce production yields
• Increase downtime for cleanup and maintenance
• Shorten the life of bearings, motors, and seals
• Force operators to slow systems down to keep dust manageable mintech.com+1

A strong dust suppression program is one of the few investments that can improve both safety and profitability by keeping more of what you buy and blend in a saleable state.

Where DustAid Fits: Coatings Designed for Fertilizer Dust

Supply Solutions is a distributor of DustAid agricultural dust control solutions from MinTerra, a MinTech product line built specifically for fertilizer, limestone, and related materials. Supply Solutions, LLC+1

What DustAid coatings do

DustAid coatings are designed to:

• Control dust throughout manufacturing, transportation, and application
• Be applied post-production, typically immediately after manufacturing and before storage, packaging, or loading
• Provide dust control on conveyors, transfer points, chutes, and during rail, truck, or barge transit
• Maintain dust control performance for the life of the treated material Supply Solutions, LLC+1

By reducing airborne dust, they help:

• Lower explosion potential
• Improve facility hygiene
• Reduce worker exposure to dust
• Increase production yields
• Enhance material integrity and quality

Independent and manufacturer reports note that DustAid coatings can reduce dust emissions by up to 99 percent in some applications when correctly applied. Supply Solutions, LLC+2GlobeNewswire+2

What materials DustAid can treat

The DustAid line is formulated to work with a wide variety of agricultural solids, including: Supply Solutions, LLC+1

• NPK blends
• Ammonium nitrate (AN) and ammonium sulfate (AS)
• Urea
• Potash and phosphate materials
• Sulfurs and biosolids
• Micronutrient blends
• Limestone, gypsum, and salts
• DAP, MAP, GTSP, SOP, KNO₃, KCl and others

This broad compatibility is important for blend plants that handle many different SKUs over a season and cannot afford a dust control solution that only works on a narrow product list.

Product families: bio-based, synthetic, and paraffinic

On the Agricultural page, Supply Solutions outlines the main DustAid product families: Supply Solutions, LLC+1

• Bio-based DustAid Natural products
  • Humectant-fortified, binder-fortified, or oil-fortified variants
  • Some OMRI-listed options for organic use in certain roles, according to the manufacturer
• Synthetic DustAid SYN products
  • Low and high viscosity options
  • Formulated for friable materials like urea, NPK blends, and others
• Paraffinic DustAid PARA products
  • Low and high viscosity paraffinic dust control
  • Combination options that include both dust control and anti-caking agents

Each family has its own strengths. For example, bio-based options appeal where renewable, biodegradable inputs are valued, while paraffinic products may be preferred where water resistance is crucial and organic certification is not required.

Because these coatings are highly specialized, the choice between them should be made based on:

• The materials you handle
• Your climate and storage conditions
• Your application equipment
• Any customer requirements around organics, food contact, or certifications

Supply Solutions can help you narrow down the right DustAid option for your operation and connect you with product-specific documentation.

How DustAid Complements, Not Replaces, Good Plant Practices

A DustAid program works best when it is part of a broader dust control strategy that includes good plant design and maintenance.

Reduce dust at the source

Simple design and operational adjustments can significantly cut dust generation, such as:

• Minimizing drop heights where product leaves conveyors or spouts
• Ensuring proper alignment and belt tracking
• Keeping equipment loaded within design capacity rather than surging
• Using spouts, skirts, and covers to contain material at transfer points

DustAid then works on the fines that still form, binding them to the granules rather than allowing them to go airborne.

Improve housekeeping and hygiene

DustAid helps reduce ongoing dust formation, but it does not remove dust that has already settled on beams, ledges, and surfaces. Off season is the time to:

• Schedule deep cleaning of structural members and hidden surfaces
• Inspect and clean ductwork, filters, screens, and collectors
• Review housekeeping checklists and responsibilities

Once baseline cleanliness improves, ongoing dust control coatings can help keep it that way.

Coordinate with ventilation and safety systems

Dust suppression coatings are not a substitute for:

• Adequate ventilation
• Appropriate dust collection where needed
• Combustible dust hazard analysis and mitigation
• Personal protective equipment policies

Instead, they support those systems by reducing the total airborne load and lowering the frequency of peak dust events. Your safety or engineering team should be involved in any major changes to dust control practices.

Practical Off Season Steps to Manage Dust with DustAid

Here is a practical framework for using winter downtime to improve dust control ahead of spring.

Step 1: Map your dust “hot spots”

Walk the plant during active operation and note:

• Which infeed and transfer points generate visible plumes
• Where fines accumulate fastest
• Load-out situations where truck drivers complain about dust
• Locations that are hardest to keep clean

Many facilities find that a few key transfer points and blend discharge locations are responsible for most of their dust issues.

Step 2: Benchmark your current situation

Before starting any coating program, document:

• Current housekeeping time and costs
• Customer complaints related to dusty product
• Observations from workers about visibility, breathing issues, or irritation
• Any known hot spots for corrosion or wear linked to dust accumulation

This baseline will help you evaluate the impact of dust control treatment later.

Step 3: Consult on the right DustAid product family

Visit the Agricultural page and then contact Supply Solutions to discuss:

• The main products you handle (urea, blends, micros, gypsum, etc.)
• Whether you need bio-based, synthetic, or paraffinic performance
• Any OMRI or organic program requirements
• Your existing spray or coating equipment

In some cases, a product like DustAid SYN LV may be appropriate for conventional NPK and urea applications, while DustAid Natural variants may be better for customers with sustainability or organic drivers. GlobeNewswire+3Supply Solutions, LLC+3Supply Solutions, LLC+3

Supply Solutions can help you align DustAid options with your local conditions and blend plant goals.

Step 4: Plan application points and equipment

DustAid coatings are typically applied:

• Immediately after manufacturing or blending
• Before storage, packaging, or loading
• At one or more key transfer points where product is already in motion

MinTech describes systems that use storage tanks or totes, metering pumps, sensors, and spray or foam nozzles designed for each facility. mintech.com+1

Your off season plan should include:

• Where to inject or spray the coating for best coverage
• How to meter product accurately relative to material flow
• How to maintain and winterize the system so it is reliable when needed

In smaller plants, simpler tote-and-pump setups may be adequate. Larger operations may consider more integrated systems.

Step 5: Start with trials, not the entire plant

It is often wise to begin with:

• One or two key fertilizer products
• A limited set of transfer points or a single blend line
• Clear metrics for success (dust levels, housekeeping time, product appearance)

Monitor:

• Airborne dust at key locations
• Visual cleanliness of treated versus untreated product
• Feedback from operators and drivers
• Any changes in equipment fouling or buildup

If results meet your targets, you can expand to more products or lines with confidence.

Step 6: Train staff and document procedures

Dust control is not just a product; it is a process.

Use off season time to:

• Train operators on how the DustAid system works
• Clarify who is responsible for checking flow, nozzles, and settings
• Update SOPs and safety procedures to reflect the new system
• Integrate dust control checks into regular maintenance rounds

The more predictable your operating procedures, the more consistent your dust control results will be.

What About Smaller Operations And Landscapers?

While DustAid is tailored to bulk fertilizer manufacturers and distributors, the same principles matter for smaller operations.

Smaller ag retailers and custom applicators

For smaller dealers who:

• Rebag product
• Run modest-sized blend towers
• Load tenders in enclosed sheds

DustAid coatings applied upstream can still deliver benefits by:

• Keeping inbound product cleaner
• Reducing dust during bag handling and tender loading
• Minimizing customer complaints from dusty, hard-to-handle products

You may not install your own coating system, but you can choose suppliers who use DustAid or similar programs and work with Supply Solutions to source treated product.

Landscapers and large grounds managers

Large landscape suppliers and grounds crews:

• Handle bulk or bagged fertilizers in enclosed shops and storage areas
• Work near residential neighborhoods where visible dust can create complaints
• Want clean, easy-to-handle products that do not coat everything in fine powder

By partnering with suppliers who use DustAid, landscapers can receive:

• Blends that flow easily through spreaders
• Less dust in storage areas and vehicles
• Fewer complaints and less clean-up at client sites

If dust from your current fertilizer supplier is creating challenges, it may be worth discussing supply options with the Supply Solutions team.

When In Doubt, Ask – And Always Follow the Label

As with any specialized product, it is important not to guess about:

• Application rates
• Appropriate materials
• Equipment requirements
• Safety and handling guidance

Each DustAid product has its own technical information, safety data sheet, and usage guidelines that must be followed. Some are appropriate for organic operations, others are not. Some may be better suited to specific materials or climate conditions than others. momar.com+2momar.com+2

When any detail is unclear:

• Do not improvise rates or mixing practices
• Contact Supply Solutions or the product manufacturer for guidance
• Coordinate with your safety and engineering teams before making significant changes to plant operations

A short conversation now can prevent expensive mistakes later.

Final Thoughts: Turn the Off Season into an Opportunity

Winter and early spring are the seasons when fertilizer plants and blend sheds can either chase dust or finally get ahead of it.

By combining:

• Good plant design and housekeeping
• Thoughtful ventilation and safety practices
• A targeted DustAid coating program, sourced through Supply Solutions

you can:

• Protect workers and equipment
• Improve product quality and customer satisfaction
• Reduce housekeeping and unplanned downtime
• Capture more value from every ton you handle

The off season is not just time between busy seasons. It is your best window to tune systems, test new solutions, and build a cleaner, safer, more efficient plant for the year ahead.

If fertilizer dust has been a recurring headache in your operation, now is a good time to explore whether DustAid agricultural dust control and Supply Solutions’ support can turn that problem into a competitive advantage.

Ready to tackle fertilizer dust in your plant or blend shed?
Supply Solutions is a veteran owned fertilizer and industrial supplier serving farmers, ag retailers, and green industry professionals across the Pacific Northwest and beyond. From Diamond K fertigation products to DustAid agricultural dust control solutions, our team is here to help you run cleaner, safer, and more efficient operations.

Connect with Supply Solutions:

• Supply Solutions LLC on Facebook
• 503-451-1622
• sales@mysolutionssupply.com