Formulation — Process Challenge

코팅용 기능성 필러 및 익스텐더

익스텐더/기능성 필러는 배합 비용을 절감하고 불투명도·광택·보강을 조정하며, PVC 대 CPVC 관리를 통해 성능을 유지합니다
Updated Jun 2026
솔루션 접근법

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
무기 충전제 및 안료
Primary extender pigment
Low-cost extender that builds volume solids and controls sheen, spacing TiO2 to improve hiding efficiency per dollar
융점:825–1339 °C (Decomposes)   끓는점:Decomposes   밀도:2.7 to 2.95
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Kaolin (china clay)
CAS 1332-58-7
무기 충전제 및 안료
증점 / 레올로지
Platy aluminosilicate extender that boosts dry hiding and holdout while partially replacing prime pigment
빠른 보기
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Nepheline syenite
CAS 37244-96-5
무기 충전제 및 안료
증점 / 레올로지
Hard, low-oil-absorption mineral extender that raises solids and abrasion resistance with minimal viscosity penalty
Physical Description: 액상
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Talc
CAS 14807-96-6
무기 충전제 및 안료
컨디셔닝
Lamellar magnesium silicate that improves sag control, sanding, and film reinforcement as a functional extender
융점:927–982 °C   밀도:2.7 to 2.8   Solubility: < 1 mg/mL at 21 °C
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Titanium Dioxide
CAS 13463-67-7
무기 충전제 및 안료
Primary white pigment for opacity
High-refractive-index prime pigment providing the hiding power that extenders are spaced around to optimize cost
융점:1860 °C (decomposes)   끓는점:2500–3000 °C at 760 mmHg   밀도:3.9 to 4.2
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Mica
CAS 12001-26-2
무기 충전제 및 안료
증점 / 레올로지
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.
융점:1500 °C   밀도:2.6 to 3.2   Solubility: Insoluble
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