Omyacarb® 4-LU is a fine, dry ground natural calcium carbonate powder used primarily in industrial applications. It serves as a pigment and filler in CASE ingredients, as well as in plastics & elastomers. The product is used in a variety of industrial applications, including plaster, render, and joint fillers. It is compatible with Polyvinyl Chloride (PVC) resins. Omyacarb® 4-LU is compliant with multiple regulatory certifications, including ISO 9001, ISO 14001, ISO 45001, and FDA 21 CFR certifications (174.5, 178.3297, 175.300). It is also certified under the Clean Air Act (CAA), Clean Water Act (CWA), and NSF/ANSI 14. The product is white in color and is available in powder form. The chemical family includes calcium salts and carbonates, with calcium carbonate being the primary chemical name. Additionally, it meets the quality standards for various applications in industrial additives.

Chemical Family: Calcium Salts, Carbonates

Pigment Type: Inorganic Pigments

Compatible Polymers & Resins: Polyvinyl Chloride (PVC)

Enhanced TDS

Identification & Functionality

Applications & Uses

Markets
Applications
Compatible Polymers & Resins
Industrial Additives End Use
Application Information
  • Rigid PVC applications
  • Flexible PVC applications
  • Rubber & Elastomers
  • Thermosets
  • Decorative Paints
  • Industrial Coatings
  • Plasters, Renders and Joint Fillers

Properties

Color (Properties)
Physical Form
Physical Properties
ValueUnitsTest Method / Conditions
Specific Gravity2.7--
Oil Absorption13.5g/100gISO 787-5
Apparent Bulk Density (loose)0.6g/ccISO 787-11
Apparent Bulk Density (packed)1.1g/ccISO 787-11
Typical Properties
ValueUnitsTest Method / Conditions
Median Particle Size (d50%)3.5μmOmya GLS 010¹
Fineness Residue (on a 325 mesh sieve)0.005%ISO 787-7
Optical Properties
ValueUnitsTest Method / Conditions
Brightness Ry93%C/2°, DIN 53163
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Minimum Ignition Energy (at 20°C, 1013 hPa)min. 1,000mJ-
Explosive PropertiesNot Explosive--
Decomposition Temperaturemin. 600°C-
Solubility in Water (at 20°C, 1013 hPa)0.014g/l-
Burning Number1--
Flammability (Solid, Gas)The product is not flammable--
Flash PointDoes not flash--
Boiling PointDecomposes below the boiling point--
Melting Point (at 1013 hPa, Decomposes below the melting point)min. 800°C-
pH Value (at 20°C, 100 g/l Concentration)8.5 - 9.5-DIN-ISO 787/9
OdorCharacteristic--
AppearanceWhite powder--
Chemical Analysis
ValueUnitsTest Method / Conditions
Magnesium Carbonate Content1%-
Calcium Carbonate Content98%-
Specifications
ValueUnitsTest Method / Conditions
Moisture Content0.03%ISO 787-2
Note

¹Malvern Mastersizer

Regulatory & Compliance

Packaging & Availability

Packaging Information
  • Bag of 25kg on pallet
  • Bulk