company tower banner
Huber Engineered Materials Company Logo
Hubercarb® Q4 is a fine ground calcium carbonate produced at Huber’s Quincy, Illinois plant which is known for its natural uniformity producing consistent purity and brightness. Carefully controlled particle distribution allows the material to be used in a wide range of applications including paints, coatings, adhesives, caulks, plastics, and construction building products.

Functions: Binder & Resin, Filler

Chemical Family: Calcium Salts, Carbonates, Kaolins

End Uses: Powder Coating, Varnishes

Compatible Polymers & Resins: Acrylics, Epoxies (EP), Polyolefins

Particle Size: 4.3 - 4.3 microns

Oil Absorption: 17.0 - 17.0 g/100 g

  • TypeDocument Name
View All Documents

Knowde Enhanced TDS

Identification & Functionality

Chemical Name
CASE Ingredients Functions
CAS No.
471-34-1
EC No.
207-439-9
Technologies

Applications & Uses

Compatible Polymers & Resins

Properties

Physical Form
Chemical Properties
ValueUnitsTest Method / Conditions
Calcium Carbonate96.5%
Magnesium Carbonate2.0%
Silica and Silicates1.0%
Other0.5%
Physical Properties
ValueUnitsTest Method / Conditions
Acid Solubility (in HCl)98.5 - 99%
Brightness (Hunter reflectance)88.0%
Compacted Bulk Density60lb/ft³ASTM C110
Loose Bulk Density40lb/ft³ASTM C110
Mesh size (+325) (45μm)0.005%
Median Particle Size (Cilas®)4.3μ
OIl Absorption17.0lbs oil / 100lbsASTM D281
Hegman Grind6.0
Moisture0.2%ASTM D280
Water Demand54.0mL/100 gms
Typical Properties
ValueUnitsTest Method / Conditions
Specific Gravity2.7ASTM D153
ColorWhite
pH (Saturated Solution)9.4ASTM D1208
Mineral Properties
ValueUnitsTest Method / Conditions
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