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Chemical Composition
- Calcium Carbonate (CaCO₃): ≥95%
CalFill
CalFill is a versatile calcium carbonate filler designed for consistent performance in construction materials, rubber, plastics, PVC, tiles, adhesives, paints, putties, sealants, paper and board applications. Its controlled particle size between 100 and 400 mesh ensures excellent dispersion, reliable bulk density and uniform workability. CalFill improves dimensional stability and process efficiency across a broad range of industrial uses.
Benefits
CalFill provides multiple functional advantages that enhance product performance and processing efficiency.
- Paints, coatings and putties: improves bulk and smooth application
- Adhesives and sealants: supports rheology and reduces shrinkage
- Construction fillers: adds stability to mortars and grouts
- Rubber and plastics: increases filler loading efficiency
- Paper, pulp and cardboard: provides bulk and printability enhancement
- Ceramics and tiles: improves body strength and smooth finish
These benefits make CalFill a reliable filler solution that supports product quality, process efficiency and performance consistency across industries.
Uses
CalFill is suitable for a broad spectrum of industrial applications where consistent filler performance is critical. In paints and coatings it enhances texture, spreadability and surface coverage. In adhesives and sealants it stabilises formulations and reduces shrinkage.
- Construction materials including mortars, grouts and fillers
- Adhesives, sealants and putties for consistent rheology
- Paints, coatings and related surface finishing products
- Rubber and plastic products requiring controlled filler content
- Paper, pulp and cardboard for bulk and printability enhancement
- Ceramic, tile and related applications for smooth finish and strength
These uses demonstrate CalFill’s versatility as a functional filler across multiple industrial sectors, improving efficiency and product quality.
Production
CalFill is manufactured to strict quality standards to ensure chemical purity, particle size consistency and reliable performance. The product contains at least 95 percent calcium carbonate, with particle size distributions tailored to specific application needs. D50 ranges from approximately 30 to 100 micrometres depending on grade, with top cut between 150 and 38 micrometres and a bottom cut around 20 micrometres to limit fines.
Base Pure Specifications
Packaging & Handling
- 25/50 kg HDPE bags
- 1 MT moisture-proof jumbo bags
- Custom packing on request
Particle Size
- D50: ~30–100 microns (grade-dependent)
- Top Cut: 150–38 microns (as specified)
- Bottom Cut: ~20 microns (fines limit)
- Custom PSD and D-values available
FAQs
How does Cal Fill improve rheology and processing?
Its controlled particle sizing and low moisture content ensure smooth flow properties, stable rheology and reliable dosing in high-speed mixing, extrusion and compounding operations.
How is moisture controlled for optimal performance?
Cal Fill is thoroughly dried, stored in moisture-protected environments and packed in sealed bags to maintain low residual moisture, preventing clumping and ensuring consistent dispersion.
How is Cal Fill suitable as a versatile filler?
Cal Fill offers customizable D90–D95 distributions and mesh ranges tailored to your process. It performs reliably in fully automated segregation and mixing systems across diverse formulations, supporting predictable flow and uniform blending.
Other Industries
Learn more about the industries Dr. Lime supports
Cement & Construction
Cement & Construction
High-grade lime sweetener corrects marginal lime, balances high-silica mixes, improves nodulization and kiln throughput and supports consistent strength development at grinding—stabilizing clinker and cement performance across plants.
Products used:
Steel & Metallurgy
Steel & Metallurgy
As a fluxing agent, lime optimizes slag formation, reduces impurities and improves overall melt quality. In sintering, high-grade lime binds fines and lowers melt temperature for strong, reactive sinter—supporting efficient blast furnace and cleaner steel in secondary metallurgy.
Products used:
Chemical & Industrial Processes
Chemical & Industrial Processes
Chemical-grade lime is a critical raw material for producing high-purity lime and calcium derivatives. Its consistent CaCO₃ content, low silica and minimal iron ensure predictable reactivity and clean conversion in calcination, hydration and chemical reaction processes. Whether in rotary kilns, PFR kilns, or shaft kilns, it supports reactive lime, PCC and specialty calcium compounds.
Products used:
Environmental & Water Treatment
Environmental & Water Treatment
Power & Energy
Power & Energy
CFB and coal-based units rely on lime injection/FGD for SO₂ capture. High-reactivity lime improves capture efficiency in both retrofit and new builds—helping plants meet stringent air-quality norms.
Products used:
Glass & Solar Panel Glass
Glass & Solar Panel Glass
High-calcium, low-iron lime lowers melting temperatures and stabilizes batch chemistry. Tight sizing ensures uniform melt flow; ultra-low iron is critical for solar, optical and premium architectural glass clarity.
Products used:
Poultry & Animal Feed
Poultry & Animal Feed
High-purity CaCO₃ provides bioavailable calcium for bone mineralization, muscle function and eggshell formation. Controlled particle sizes enable uniform mixing, predictable release and consistent feed performance across growth stages.
Products used:
Fertilizer and Agriculture
Fertilizer and Agriculture
To manage soil acidity, lime supplies calcium (and magnesium where dolomitic), improving structure, microbial activity and nutrient availability. Result: better root development, balanced uptake and improved yields.
Products used:
Industrial Fillers & Additives
Industrial Fillers & Additives
GCC/lime powder is a cost-effective mineral extender for plastics, paints, rubber and more—improving bulk density, workability, rheology, dimensional stability and throughput with consistent sizing and low moisture.
Products used:
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