CAS-20® 4 Calcium Sulfate Filler
- CAS Number
- 7778-18-9
- EC Number
- 231-900-3
- Chemical Name
- Calcium Sulfate
- Chemical Family
- Calcium Salts
Cas-20® 4 Calcium Sulfate Filler can be used at high loadings and consistently provides an excellent balance of properties and good surface appearance.
Other characteristics
- Brand
- CAS-20
- End Uses
- Appliances
- Features
Acid Resistant, Excellent Dielectric Properties, Excellent Opacity, Good Balance of Properties, Good Brightness, Good Impact Strength, Good Processability, High Purity, Low Specific Gravity, UV Resistant; High purity, whiteness; Soft, low abrasion; Resistance to weak acids; Improved UV resistance; Excellent impact properties; Good processibility; Excellent Dielectric properties; Lower specific gravity than barium sulfate; Resistance to mild acids; Good electrical properties; Cost savings potential
- Synonyms
Basic calcium sulfate, Calcium sulfate (CaSO4), Calcium sulphate, Sulfuric acid calcium salt, Sulfuric acid calcium(2+) salt (1:1)
- Functions
- Filler
- Markets
- Consumer Goods
- Printing & Packaging
- Technology
- Elastomers
- Plastics
- Storage and Use
When properly used, USG CAS-20-4 Anhydrous Calcium Sulfate Filler is easy to work with. Keep indoors at temperatures between 65 °F – 75 °F (18 °C – 24 °C) and 45% – 55% RH. Do not stack more than two pallets high. Keep from drafts. Rotate stock. USG CAS-20-4 Anhydrous Calcium Sulfate Filler should be used within one year of the manufacturing date located on the package. Always follow handling and use directions and safety warnings on the package.
- Packaging Type
- Bags
- Labeling Claims
- Food Contact Acceptable
- Material Features
- Acid Resistant
- Excellent Dielectric Properties
- Excellent Opacity
- Good Balance of Properties
- Good Brightness
- Good Impact Strength
- Good Processability
- High Purity
Technical data
Table 1 of 1
20 rows| Characteristic | Value | Unit |
|---|---|---|
| Specific Gravity | 3 | — |
| pH-10% Slurry | 10.8 | — |
| Mohs Hardness | 2-3 | — |
| Refractive Index | 1.6 | — |
| Dielectric Constant | 5.6 | — |
| Oil Absorption | 24-26 | — |
| Loose Bulk Density | 45 | lbs./ft.3 |
| Packed Bulk Density | 65 | lbs./ft.3 |
| L | 95.4 | — |
| a | 0.5 | — |
| b | 1.9 | — |
| Median Particle Size | 4.6 | microns |
