Compounding — Process Challenge

Dispersantes de pigmento y auxiliares de proceso para masterbatch

Lograr un desarrollo de color uniforme y evitar aglomerados en la producción de masterbatch y de compuesto mediante dispersantes, humectantes y auxiliares de proceso junto con los pigmentos mismos
Updated Jun 2026
Enfoque de solución

RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.

Typical Formulation Workflow
1
Polymer & Process Definition
Identify the resin and process (extrusion, molding, film) and the targets — thermal stability, clarity, flame retardance, slip, or color.
2
Additive Selection
Match stabilizers, antioxidants, plasticizers, lubricants, flame retardants, or masterbatch carriers to the polymer and processing temperatures.
3
Compounding Trial
Confirm loading and dispersion on a compounding or molding trial, checking processability, mechanicals, and aesthetics against the control.
4
Validation & Scale-Up
Verify long-term performance (heat aging, migration, weathering) and lock the formulation, packaging, and lot specs for production.
Recommended Chemistries (6)
Titanium Dioxide
CAS 13463-67-7
Cargas Minerales y Pigmentos
UV blocker and white pigment
Primary white pigment/opacifier; high refractive index scatters light for hiding power and tint base
Punto de fusión:1860 °C (decomposes)   Punto de ebullición:2500–3000 °C at 760 mmHg   Densidad:3.9 to 4.2
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Calcium Stearate
CAS 1592-23-0
Ésteres
Tensioactividad
Metal-soap dispersion/processing aid: coats pigment and filler particles to reduce agglomeration and lubricate flow during compounding
Physical Description: Pellets or crystals, liquid, solid, dry powder,…   Appearance: FINE, WHITE TO YELLOWISH WHITE, BULKY POWDER   Punto de fusión:Melting point equals 217 ° F
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Zinc Stearate
CAS 557-05-1
Ácidos y Sales
Lubricación
Lubricant/dispersant metal soap that wets pigment surfaces and improves release, aiding even color development
Physical Description: Zinc stearate is a white, hydrophobic powder wi…   Appearance: White powder free from gritiness   Odor: Slight, characteristic odor
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Polyether-Modified Trisiloxane (Silicone Surfactant)
CAS 27306-78-1
Fluidos y Aceites de Silicona
Acondicionamiento
Lowers surface tension to wet pigment surfaces, helping break agglomerates in liquid/aqueous color systems
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Carbon black
CAS 1333-86-4
Cargas Minerales y Pigmentos
Color / Pigmentación
1362 (CARBON, ACTIVATED) · Class
Primary black pigment and UV/conductive additive for masterbatch tinting
Physical Description: Pellets or crystals, solid, dry powder, liquid,…   Appearance: Steel gray to black greasy feeling solid   Odor: Odorless
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Iron Oxide Synthetic Black
CAS 12227-89-3
Cargas Minerales y Pigmentos
Color / Pigmentación
Inorganic colorant for masterbatch/compound; heat- and light-stable pigment that disperses cleanly for consistent tone (Synthetic Yellow 51274-00-1 and Red 1309-37-1 also stocked for the colorant range)
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