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Hubercarb® G6

CAS Number
471-34-1
EC Number
207-439-9
Chemical Name
Calcium Carbonate

Hubercarb® G6 is a high purity, fine ground calcium carbonate produced from a high brightness marble deposit in Georgia for applications that require high brightness or pure tints. Carefully controlled particle distribution allows the material to be used in a wide range of applications including paints, coatings, PVC compounds, rubber and plastics.

Properties

Physical Form
  • Powder
  • Solid

Identification

CASE Ingredients Functions
Filler

Product families

Applications

Adhesives & Sealants — Building & Construction
  • Sealants & Caulks
Paints & Coatings — Building & Construction
  • Roof Coatings
Building & Construction — Building Envelope & Roofing
  • Waterproofing & Weatherproofing
Building & Construction — Building Materials
  • Sealants & Caulks

Product Families

CASE Ingredients — Additives
  • Fillers & Extenders

Other characteristics

Brand
Hubercarb
End Uses
Powder Coating, Varnishes
Functions
Filler
Particle Size
7.0 - 7.0 microns
Oil Absorption
15.0 - 15.0 g/100 g
Markets
  • Adhesives & Sealants
  • Building & Construction
  • Paints & Coatings
Coating Type
  • Powder Coating
  • Varnishes
Technology
CASE Ingredients

Technical data

Table 1 of 4

4 rows
CharacteristicValueUnit
Calcium Carbonate96.0%
Magnesium Carbonate2.5%
Silica and Silicates0.4%
Other1.1%

Table 2 of 4

10 rows
CharacteristicValueUnitMethod
Acid Solubility (in HCl)95 - 98.5%—
Brightness (Hunter reflectance)94.0%—
Compacted Bulk Density85lb/ft³ASTM C110
Loose Bulk Density50lb/ft³ASTM C110
Mesh size (+325) (45μm)0.05%—
Median Particle Size (Sedigraph®)7.0μ—
OIl Absorption15.0lbs oil / 100lbsASTM D281
Hegman Grind3.0—ASTM D1210
Moisture0.2%ASTM D280
Water Demand41.0mL/100 gms—

Table 3 of 4

3 rows
CharacteristicValueMethod
Specific Gravity2.7ASTM D153
ColorWhite—
pH (Saturated Solution)9.4ASTM D1208

Table 4 of 4

7 rows
CharacteristicValueUnitMethod
Hardness (Mohs)3——
Linear Expansion Coefficient4.3 x 10^-6°C—
Solubility (H₂O, 100°C)0.0035g/100ml—
Weight per Gallon (s.g. x 8.345)22.6lbs—
Particle Shape (Microscope)Irregular, uniaxial——
Refractive Index (Hand. Of Chem. & Phy)1.6——
Alkalinity (as NaOH)0.4mg/gmASTM D1208

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