Calcium Carbonate Filler for Wood Putty
CAS Number: 471-34-1
Ground calcium carbonate (GCC) and precipitated calcium carbonate (PCC) are widely used fillers in wood putty, grain filler, and sealer primer formulations. They provide cost-effective volume extension, good whiteness, and easy sanding. Ultra-fine grades are used in high-quality wood sanding sealers to achieve smooth, sandable surfaces before topcoat application.
Technical Specifications
| whiteness | ≥95% |
| appearance | White fine powder |
| oil absorption | 18–30 g/100g |
| CaCO₃ content | ≥98% |
| moisture content | ≤0.3% |
| average particle size (D50) | 2–10 μm (GCC), 0.5–3 μm (PCC) |
Applications
- Wood putty and grain filler formulations
- NC, PU, and acrylic wood sanding sealers
- Wood furniture filler and repair compounds
- Interior wood coating primer compositions
- Dry-mix wood repair and joint filler
Key Features
- High whiteness for bright, neutral-toned wood putty
- Very low oil absorption reduces binder demand
- Good sandability for smooth surface finishing
- Cost-effective extender for all wood putty systems
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CAS Number
471-34-1
Category
Wood / Furniture CoatingsAvailability
In StockSample
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