To catalogue
Hubercarb® W325
Hubercarb® W325 is a 13-micron calcium carbonate grade produced in Quincy, IL. Its advantages include a controlled medium-fine particle size distribution with low moisture and low silica content.
Identification
- CASE Ingredients Features
- Crack ResistanceThermal Resistance
Product families
Applications
Adhesives & Sealants — Building & Construction
- Sealants & Caulks
Paints & Coatings — Building & Construction
- Decorative Paints
Building & Construction — Building Materials
- Sealants & Caulks
Building & Construction — Decorative Materials & Finishes
- Decorative Paints Coatings & Stains
Product Families
CASE Ingredients — Additives
- Fillers & Extenders
- Surface Modifiers
Other characteristics
- Brand
- Hubercarb
- Features
- Crack Resistance, Thermal Resistance
- Functions
- Filler, Tackifier
- Particle Size
- 13.0 - 13.0 microns
- Labeling Claims
- Other Labeling Claims
- Compatible Polymers & Resins
Acrylics, Cellulose & Cellulosics, Epoxies (EP), Polyesters, Polyethylenes (PE), Polyolefins, Polyvinyl Chloride (PVC)
- Color
- White
- Markets
- Adhesives & Sealants
- Building & Construction
- Paints & Coatings
- Appearance
- White
- Technology
- CASE Ingredients
- HIGHLIGHTS
Non-Detectable Silica Means No SDS Health Warning Labels; The Brightest Calcium Carbonate Available From Limestone Ore
- Compatible Polymers and Resins
- Acrylics
- Cellulose & Cellulosics
- Epoxies (EP)
- Polyesters
- Polyethylenes (PE)
- Polyolefins
- Polyvinyl Chloride (PVC)
Technical data
Table 1 of 4
6 rows| Characteristic | Value | Unit |
|---|---|---|
| Calcium Carbonate | 99.3 | % |
| Leachable Chlorides | max. 5 | ppm |
| Magnesium Carbonate | 0.4 | % |
| Silica and Silicates | 0.05 | % |
| Other | 0.23 | % |
| Iron | 40.0 | ppm |
Table 2 of 4
7 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Acid Solubility (in HCl) | 99.8 | % | — |
| Brightness (Hunter reflectance) | 92.0 | % | — |
| Compacted Bulk Density | 75 | lb/ft³ | ASTM C110 |
| Loose Bulk Density | 50 | lb/ft³ | ASTM C110 |
| Median Particle Size (Cilas®) | 13.0 | μ | — |
| Mesh size (-325) (45μm) | 0.95 | % | — |
| Moisture | 0.1 | % | ASTM D280 |
Table 3 of 4
3 rows| Characteristic | Value | Method |
|---|---|---|
| Specific Gravity | 2.7 | ASTM D153 |
| Color | White | — |
| pH (Saturated Solution) | 9.4 | ASTM D1208 |
Table 4 of 4
7 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Hardness (Mohs) | 3 | — | — |
| Linear Expansion Coefficient | 4.3 x 10^-6 | °C | — |
| Solubility (H₂O, 100°C) | 0.0035 | g/100ml | — |
| Weight per Gallon (s.g. x 8.345) | 22.6 | lbs | — |
| Particle Shape (Microscope) | Irregular, uniaxial | — | — |
| Refractive Index (Hand. Of Chem. & Phy) | 1.6 | — | — |
| Alkalinity (as NaOH) | 0.4 | mg/gm | ASTM D1208 |
