Toll Dispersion
Toll Dispersion Services
Ascent Chemicals provides toll dispersion services for specialty chemical manufacturers requiring expert particle size reduction, pigment grinding, and stable dispersion production. With 6 high-speed dispersers, 20+ media mills, and 80+ years of specialty chemical manufacturing experience, we execute your dispersion processes safely and efficiently across three ISO 9001:2015 certified U.S. facilities.
What is Toll Dispersion?
Toll dispersion is a specialized form of toll manufacturing where a customer outsources the mixing and particle-dispersion process to a qualified manufacturer.
In toll dispersion, you provide the raw materials and formulation specifications, while Ascent Chemicals provides the equipment, technical labor, and quality control to produce stable dispersions to your exact specifications.
A dispersion is a mixture in which solid particles—such as pigments, fillers, or active ingredients—are uniformly distributed throughout a liquid medium and remain suspended rather than dissolved. Proper dispersion is critical for product performance in coatings, inks, adhesives, and other specialty chemical applications where particle size, stability, and uniformity directly affect end-product quality.
Key Benefits of Toll Dispersion:
- Access specialized dispersion equipment without capital investment
- Leverage 80+ years of specialty chemical manufacturing expertise
- Scale from pilot quantities to full commercial production
- Maintain ownership of your formulation and intellectual property
- Reduce lead times with domestic U.S. manufacturing
Toll Dispersion Capabilities & Equipment
Ascent Chemicals operates one of the most comprehensive dispersion equipment fleets in the specialty chemical industry, enabling us to handle a wide range of dispersion requirements.
High-Speed Dispersion
Our high-speed cowles blade dispersers provide efficient particle wetting, de-agglomeration, and preliminary size reduction for pigments, fillers, and solid additives. High-speed dispersion is ideal for:
- Initial pigment wetting and incorporation
- Breaking apart soft agglomerates
- Preparing pre-dispersions for further milling
- Low-to-medium viscosity formulations
Media Milling
For applications requiring fine particle size control, our media mills deliver precise particle size reduction and narrow particle size distributions. Our media milling capabilities include:
- Wet milling for pigment grinding and particle size reduction
- Multiple media mill sizes for batch flexibility
- Particle size reduction to sub-micron levels
- Consistent, repeatable results batch-to-batch
Dispersion Equipment by Location
South Carolina: 6 high-speed dispersers, 20 media mills, 42 mix tanks (1,500–8,000 gallons)
Tennessee: Homogenizers, horizontal mills, high-shear mixing equipment
Virginia: Horizontal reactors (130L–15,000L), vertical reactors (200–4,000 gallons)
Dispersion Process Parameters We Support
- Batch sizes from pilot scale to multi-ton production
- Water-based and solvent-based systems
- High-viscosity formulations
- Temperature-controlled processing
- Inert atmosphere processing when required
Industries Served with Toll Dispersion Services
Ascent Chemicals provides toll dispersion services across 13 specialty chemical markets. Our dispersion capabilities support applications where particle size control, stability, and uniformity are critical to product performance.
Coatings, Adhesives, Sealants & Elastomers (CASE)
Toll dispersion of pigment concentrates, colorants, wetting agents, and performance additives for architectural and industrial coatings, adhesives, and sealant formulations. Applications include:
- Pigment dispersions for paints and coatings
- Colorant concentrates
- Functional additive dispersions
- Primer and topcoat formulations
Inks & Printing
Production of pigment dispersions, colorant concentrates, and specialty additives for printing inks, digital inks, and graphic arts applications requiring precise color consistency and particle size control.
Plastics & Polymers
Dispersion of pigments, fillers, flame retardants, and specialty additives for plastic compounding, masterbatch production, and polymer processing applications.
Personal Care & Cosmetics
Toll dispersion of pigments, colorants, and active ingredients for cosmetic formulations, sunscreens, and personal care products requiring uniform particle distribution and stability.
Pulp & Paper
Manufacturing of sizing agent dispersions, coating pigments, and specialty chemical dispersions for paper and paperboard production.
Water Treatment
Production of flocculant dispersions, coagulant concentrates, and specialty chemical dispersions for municipal and industrial water treatment applications.
Agriculture
Dispersion of active ingredients, adjuvants, and specialty chemicals for crop protection formulations and agricultural applications.
Additional Markets
- Oil & Gas: Drilling fluid additives, corrosion inhibitor dispersions
- HI&I: Cleaning agent concentrates, specialty chemical dispersions
- Textiles & Leather: Dye dispersions, finishing agent concentrates
- Infrastructure: Concrete additive dispersions, waterproofing chemical concentrates
- Mining: Flotation agent dispersions, collector concentrates
Why Choose Ascent Chemicals for Toll Dispersion?
Specialized Dispersion Expertise
With 80+ years of specialty chemical manufacturing experience, our technical teams understand the science of dispersion—from particle wetting and de-agglomeration to stabilization and quality control. We work with you to optimize your dispersion process for consistent, high-quality results.
Comprehensive Equipment Fleet
Our facilities house 6 high-speed dispersers, 20+ media mills, and extensive mixing and blending equipment. This range allows us to match the right equipment to your specific dispersion requirements, whether you need high-shear mixing, fine grinding, or high-viscosity processing.
Domestic U.S. Manufacturing
All three Ascent facilities are located in the United States (South Carolina, Tennessee, Virginia), providing:
- Shorter lead times compared to overseas manufacturing
- Reduced supply chain risk and logistics complexity
- Easier site visits and audits
- Compliance with U.S. regulatory requirements
Quality & Compliance
- ISO 9001:2015 certified quality management systems
- EPA-registered manufacturing facilities (FIFRA establishments)
- Full batch records and Certificates of Analysis (COA) with each shipment
- Documented quality control procedures and traceability
Flexible Capacity
- Scale from pilot quantities to full commercial production
- Supplement your existing capacity during peak demand
- Transition between toll and contract manufacturing as needs evolve
Confidentiality & IP Protection
- Standard NDAs executed before technical discussions
- Secure handling of customer formulations and process data
- Customer retains full ownership of formulations and IP
- Dedicated production campaigns to prevent cross-contamination
Quality, Safety & Compliance
Quality Certifications
- ISO 9001:2015 certified quality management systems
- Documented quality control procedures and batch records
- Certificate of Analysis (COA) provided with each shipment
- Full traceability from raw materials through finished products
Analytical Capabilities for Dispersion Quality
Our laboratories support dispersion quality control with:
- Particle size analysis
- Viscosity measurement (Brookfield viscometers)
- Color measurement and colorimetry
- Stability testing
- pH and density measurement
Regulatory Compliance
- EPA-registered manufacturing facilities (FIFRA establishments)
- Process Safety Management (PSM) covered processes
- USDA BioPreferred® certified products available
- Compliance with TSCA, REACH, and other regulatory frameworks
Safety Infrastructure
- Class 1, Div 2 hazardous area classifications for flammable materials
- Engineered controls for combustible dust handling
- Comprehensive EHS programs and safety training
- Emergency response capabilities at all locations