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Calcium Carbonate Filler
Calcium Carbonate Filler is a high-quality, uncoated ground calcium carbonate (GCC) specially engineered for use as a filler in polyethylene (PE) and other polyolefin resins. This grade of calcium carbonate is designed to enhance the physical and mechanical properties of plastics while providing cost-effective bulk and improved processing. It is a fine, white, odorless powder with excellent brightness, high purity, and uniform particle size distribution. Its use improves stiffness, impact resistance, dimensional stability, and surface finish in polyethylene applications such as films, sheets, pipes, and molded parts.
Calcium Carbonate Filler
Primary UsesÂ
- Polyethylene (PE) Industry
- Used as a mineral filler to increase the stiffness and rigidity of PE compounds.
- Enhances impact strength and dimensional stability of PE films and molded products.
- Improves surface finish and printability of plastic goods.
- Reduces raw material costs by replacing a portion of the polymer with calcium carbonate.
- Polyolefin Compounds
- Incorporated in polypropylene (PP) and other polyolefin resins as a reinforcing filler.
- Improves melt flow properties and reduces shrinkage during processing.
- Supports better filler dispersion and compatibility with polyolefin matrices.
- Plastic Extrusion and Injection Molding
- Used in extrusion of films, sheets, pipes, and profiles to improve mechanical strength and processability.
- Applied in injection molding of plastic parts for enhanced stiffness and aesthetic surface qualities.
Secondary UsesÂ
- Rubber and Adhesives
- Acts as a reinforcing and extending filler in some rubber and adhesive formulations.
- Paints and Coatings
- Occasionally used in coatings where polyethylene dispersions or blends are employed.
1. Basic Identification Attributes
- Chemical Name (IUPAC): Calcium carbonate
- Common/Trade Name: Calcium Carbonate Filler PE F261
- CAS Number: 471-34-1
- HS Code: 2836.50.00
- Molecular Formula: CaCO₃
- Synonyms:
- Ground calcium carbonate (GCC)
- Limestone powder
- Calcium carbonate filler for plastics
2. Physical & Chemical Properties
- Physical State: Fine white powder
- Color & Odor: White; odorless
- Particle Size: Typically in micron range optimized for PE applications (usually 1–5 μm)
- Specific Surface Area: High, enhancing filler-polymer interaction
- Density: Approx. 2.7–2.8 g/cm³
- Solubility: Insoluble in water; soluble in acids with effervescence
- pH: Slightly alkaline when dispersed in water (pH ~9)
- Melting Point: Decomposes at ~825°C releasing CO₂
- Stability: Chemically stable under normal conditions
3. Safety & Hazard Attributes
- Hazard Class (GHS): Not classified as hazardous; nuisance dust
- NFPA Ratings:
- Health: 1
- Flammability: 0
- Reactivity: 0
- Exposure Limits: OSHA PEL for calcium carbonate dust: 15 mg/m³ (total dust)
- Toxicity: Low acute toxicity; inhalation of dust may cause respiratory irritation
- Reactivity: Stable; reacts with acids releasing carbon dioxide gas
4. Storage & Handling Attributes
- Storage Conditions: Store in a dry, cool, well-ventilated area to avoid moisture uptake
- Container Type: Bags, bulk containers, or silos with dust control
- Shelf Life: Indefinite if stored properly
- Special Handling: Use appropriate PPE; minimize dust generation
5. Regulatory & Compliance Attributes
- FDA Status: Approved as a filler in plastics, indirectly regulated for food contact applications depending on local regulations
- Transportation: Not classified as hazardous
- Waste Disposal: Dispose as non-hazardous industrial waste per local regulations
6. Environmental & Health Impact
- Ecotoxicity: Low; naturally occurring mineral with minimal environmental hazard
- Persistence: Persistent; chemically inert, not biodegradable
- Bioaccumulation: Not expected
- Carcinogenicity/Mutagenicity: Not classified as carcinogenic or mutagenic
- Biodegradability: Not biodegradable
 Safety Handling Precautions
Personal Protective Equipment (PPE):
- Dust mask or respirator (NIOSH-approved)
- Gloves
- Safety goggles
- Protective clothing
Handling Measures:
- Avoid inhalation of dust
- Use local exhaust ventilation or dust extraction systems
- Work in well-ventilated areas
Storage Measures:
- Store away from moisture and incompatible substances (strong acids)
- Keep containers tightly sealed
Hygiene Practices:
- Wash hands after handling
- Avoid eating, drinking, or smoking during handling
First Aid Measures
- Inhalation: Move to fresh air; seek medical attention if breathing difficulties persist
- Skin Contact: Wash with soap and water; seek medical advice if irritation occurs
- Eye Contact: Rinse thoroughly with water for 15 minutes; seek medical attention if irritation persists
- Ingestion: Generally low toxicity; rinse mouth and seek medical advice if large quantities ingested
Firefighting Measures
- Fire Hazards: Non-flammable
- Extinguishing Media: Use water spray, foam, dry chemical, or COâ‚‚ as appropriate for surrounding fire
- Special Precautions: None specific; thermal decomposition may release COâ‚‚
- Decomposition Products: Carbon dioxide upon thermal decomposition
Related products
Aluminum Fine Powder
Aluminum fine powder consists of finely divided aluminum particles, typically metallic and silvery-white in appearance. It is produced by atomization or grinding of bulk aluminum and is valued for its high surface area, excellent conductivity, and lightweight metallic properties. Aluminum fine powder is extensively used in various industrial applications including metallurgy, pyrotechnics, coatings, additive manufacturing, and as a pigment. Due to its reactivity, it requires careful handling and storage. Its fine particulate nature makes it particularly useful where rapid oxidation or reaction is desired, such as in explosives or energetic materials. It is also employed in the manufacturing of paints, inks, and cosmetics to impart metallic luster.
Binder
A binder is a broad category of substances—organic or inorganic—used to hold different materials together in a cohesive mass. Common binders include natural polymers (starch, cellulose derivatives, proteins), synthetic resins (PVA, acrylics, phenolics), and inorganic binders (clays, cement, lime). They are essential in industries such as pharmaceuticals, construction, coatings, ceramics, adhesives, and printing, where they provide structural integrity, adhesion, and controlled release properties.
Calcium Carbonate Heavy
Calcium Carbonate Heavy is a high-density, finely ground, natural mineral primarily composed of calcium carbonate (CaCO₃). Known for its higher bulk density compared to regular grades, this filler is widely used in applications requiring enhanced weight, opacity, and strength. It is commonly employed as a functional filler and extender in industries such as plastics, paints, coatings, adhesives, rubber, paper, and construction materials. Its inert nature, whiteness, and particle size distribution make it suitable for improving mechanical properties and surface finish, while also offering cost efficiency by replacing more expensive raw materials.
Calcium Carbonate Light
Calcium Carbonate Light is a finely ground, low bulk density natural mineral composed primarily of calcium carbonate (CaCO₃). Compared to standard grades, it has a lower density and larger particle size distribution, making it suitable for applications where light weight and high brightness are important. This form is extensively used as a filler and extender in industries such as plastics, paints, rubber, paper, adhesives, and construction materials to improve opacity, brightness, and texture, while maintaining low weight and cost efficiency. Its chemical inertness and whiteness provide functional and aesthetic advantages across formulations.
Polymer Fiber
Polymer Fiber refers to a wide range of synthetic fibers made from polymer materials such as polypropylene, polyester, nylon, polyethylene, and acrylics. These fibers are engineered for high tensile strength, durability, flexibility, and resistance to chemicals and moisture. Polymer fibers are widely used in construction, textiles, filtration, composites, and industrial applications to improve mechanical properties, enhance structural integrity, and provide specialized functional benefits.
Sodium Alumina Silicate
 Sodium Alumina Silicate is an inorganic compound consisting of sodium, aluminum, and silicon oxides. It is typically found as a white, amorphous powder with excellent adsorption and ion-exchange properties. Commonly used as a detergent builder, water softener, and desiccant, sodium alumina silicate improves cleaning efficiency, controls water hardness, and aids moisture absorption. Its thermal stability and chemical inertness make it valuable across detergent manufacturing, water treatment, and various industrial processes.
Whiting
 Whiting is a finely ground, white, chalky substance primarily composed of calcium carbonate (CaCO₃). It is widely used as a pigment, filler, and extender in various industrial and commercial applications. Whiting provides opacity, brightness, and smoothness to products, enhancing their appearance and physical properties. Its natural abundance and versatility make it an economical additive in multiple manufacturing processes.
