Formulation — Process Challenge

Funktionale Füllstoffe und Extender für Beschichtungen

Extender und funktionale Füllstoffe senken Formulierungskosten und steuern Deckkraft, Glanz und Verstärkung bei gleichbleibender Performance – durch gezieltes Management von PVC gegenüber CPVC
Updated Jun 2026
Lösungsansatz

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
System & Substrate Assessment
Define the binder system (waterborne, solventborne, UV, powder), substrate, cure, and the VOC, durability, and appearance targets.
2
Additive & Resin Selection
Match resins, pigments and fillers, dispersants, rheology modifiers, defoamers, or biocides to the formulation and compatibility window.
3
Lab Let-Down & Optimization
Dial in loading and addition order through lab let-downs, checking dispersion, rheology, film properties, and storage stability.
4
Application & Performance Testing
Validate on the real application method and substrate, tracking gloss, adhesion, sag, cure, and weathering before scale-up.
Recommended Chemistries (6)
Calcium Carbonate
CAS 471-34-1
Mineralische Füllstoffe & Pigmente
Primary extender pigment
Low-cost extender that builds volume solids and controls sheen, spacing TiO2 to improve hiding efficiency per dollar
Schmelzpunkt:825–1339 °C (Decomposes)   Siedepunkt:Decomposes   Dichte:2.7 to 2.95
Schnellansicht
Alle Details
Kaolin (china clay)
CAS 1332-58-7
Mineralische Füllstoffe & Pigmente
Verdickung / Rheologie
Platy aluminosilicate extender that boosts dry hiding and holdout while partially replacing prime pigment
Schnellansicht
Alle Details
Nepheline syenite
CAS 37244-96-5
Mineralische Füllstoffe & Pigmente
Verdickung / Rheologie
Hard, low-oil-absorption mineral extender that raises solids and abrasion resistance with minimal viscosity penalty
Physical Description: Flüssig
Schnellansicht
Alle Details
Talc
CAS 14807-96-6
Mineralische Füllstoffe & Pigmente
Konditionierung
Lamellar magnesium silicate that improves sag control, sanding, and film reinforcement as a functional extender
Schmelzpunkt:927–982 °C   Dichte:2.7 to 2.8   Solubility: < 1 mg/mL at 21 °C
Schnellansicht
Alle Details
Titanium Dioxide
CAS 13463-67-7
Mineralische Füllstoffe & Pigmente
Primary white pigment for opacity
High-refractive-index prime pigment providing the hiding power that extenders are spaced around to optimize cost
Schmelzpunkt:1860 °C (decomposes)   Siedepunkt:2500–3000 °C at 760 mmHg   Dichte:3.9 to 4.2
Schnellansicht
Alle Details
Mica
CAS 12001-26-2
Mineralische Füllstoffe & Pigmente
Verdickung / Rheologie
Genuine low-cost lamellar extender pigment used precisely for filler-loading cost optimization: spaces/extends TiO2, reinforces film, reduces cracking and moisture permeability, and controls sheen at a fraction of TiO2/binder cost. Directly serves this exact use-case.
Schmelzpunkt:1500 °C   Dichte:2.6 to 3.2   Solubility: Insoluble
Schnellansicht
Alle Details

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